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Emergency Contact Numbers

The numbers below are the emergency contact numbers for Subsea Cables and Renewable Energy Structures. These phone numbers relate to each offshore structure and may be used in case of an emergency, or urgent situation.

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Emergency Procedures

Please keep clear of and do not damage subsea cables/structures. You risk the loss of your gear and catch, and international communications can be disrupted. These cables carry high voltages and can be dangerous to life. Many cables have high breaking strains, some over 70 tonnes. Cables will usually lie buried in the seabed, although because the seabed can move, there is no guarantee they will remain in the same place.

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Reducing Risks Whilst Fishing

It is essential to be aware of the locations of subsea cables and renewable energy infrastructure, when fishing in the vicinity of such structures. It is essential you have all the information in relation to their positions available to you and the KIS-ORCA project is designed to provide exactly that for all seabed users. Charts, fishing plotter files and an interactive map, showing subsea cables and renewable energy structures surrounding the UK, may be viewed or downloaded, free of charge.

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The Risks of Fishing near Cables & Renewable Energy Structures

The potential risks associated with the offshore renewable and subsea cable industries come in two distinct categories - surface structures and subsurface structures. Each type of structure may potentially be a risk to fishing activities. The information below describes these hazards, with the subsequent sections explaining the emergency procedures.

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Media Gallery

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Tidal Device Principles

Tidal devices exploit kinetic energy in the tidal flow of water caused by the interaction of the gravitational fields of the earth, moon and sun. Tidal currents are magnified by topographical features, such as headlands, inlets and straits, or sea bed channels. Many of the devices that use these currents are broadly similar to submerged wind turbines. Sea water is around 800 times denser than air but average flow speeds for viable projects are of the order of one fifth of corresponding wind speeds, giving a power density of around 5-10 times. This means that for a tidal device of the same rating as a wind turbine, the rotor will be smaller. Individual tidal devices are unlikely to reach the same rated power as offshore wind turbines; however, as to have sufficient space to deploy such large devices requires development of deeper water sites that generally have less significant tidal flows. EMEC has identified four main types of tidal energy convertors that are outline below.

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Wave Device Principles

Waves are created by the interaction of wind with the surface of the sea, sometimes over very long distances.  The size of the waves is influenced by wind, the local seabed bathymetry (which can focus or disperse the energy of the waves) and currents.  Waves offer a large source of energy which can be converted into electricity by a wave energy converter (WEC).  Some wave energy converters have been developed to extract energy from the shoreline, others from waters offshore, some with a hydraulic power take-off system and some with an electrical power take-off system.  EMEC has identified six main types of wave energy converter that are outlined below. 

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Wave & Tidal Devices – Overview

The United Kingdom's wave and tidal stream energy industry is the current global leader, with more installed capacity than the rest of the world combined. Our strength has been built on established British marine engineering skills, the creation of world-first testing facilities and the strength of the energy resource found in UK waters. The UK is proud to have developed the first commercial scale wave and tidal stream projects in 1998 and 2003 respectively but the industry is now on the cusp of commercial viability as we move through the phases of development.

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Wind Farms – Installation Methods

Life cycle stages

Lease award and Pre-construction

Once a developer has obtained a lease from the Crown Estate they will start to appraise the zone or lease area. This requires a number of surveys to be completed including boat or aerial based bird and marine mammals surveys, benthic grabs and fish surveys.

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Wind Farms – Design of Structures Installed

Offshore wind farms consist of a number of connected elements. These include the turbines, foundations, array cables, offshore substation, export cable and onshore substation and infrastructure. These items are installed using a range of different vessels and then serviced by either smaller crew transfer vessels or helicopters.

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Windfarms - Overview

Offshore wind farms consist of a number of wind turbines which sit on foundations, secured to the seafloor, which produce electricity. This electricity is transmitted to where it is needed through a series of cables and substations. The first offshore wind farm was installed in Denmark in 1991 and the industry has grown rapidly since then with 3.3GW installed across Europe (1.8GW of which is in the UK).  China, US, Japan and South Korea have also started to develop offshore wind farms.

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Terms & Conditions

  Terms and Conditions - KIS-ORCA Website This website, www.kis-orca.org, ("the Site") is provided to you ("you" meaning any person, firm, partnership, corporate body or any other legal person accessing or otherwise using, or benefitting from the use of, this Site) by the Kingfisher Division of Seafish, ESCA and its Members. Data which is provided via this Site, including Plotter Data, is provided free of charge. Kingfisher Information Services and ESCA DO NOT verify data provided on the Site, including Plotter Data. Please read these Terms carefully before using this Site: 1 AUTHORITY AND LICENCE FOR USE OF THE SITE 1.1 In making use of the Site, you agree to be bound by these Terms which form the sole agreement between you as user of the Site and us ("Agreement"). 1.2 If you do not agree to be bound by these Terms, you should not use the Site. 1.3 You acknowledge that your use of the Site: 1.3.1 may be limited at any time by us; and 1.3.2 may be suspended or terminated at any time by us. 2 DISCLAIMER 2.1 We give you no warranty or assurance, except as set out in Condition 6 (Our Obligations). We declare and you acknowledge that all implied warranties and conditions are excluded to the maximum extent permitted by law. 2.2 We are not responsible for any: 2.2.1 typographical errors or omissions on the Site; 2.2.2 data, information, text, music, sound, photos or graphics or other material ("Content") that you may have access to as part of, or through your use of the Site, including, but not limited to, other websites that you may access via links provided on our Site; or 2.2.3 Content you may be exposed to through use of the Site that you may find offensive, indecent or objectionable. 2.3 We do not warrant that the Content of this Site is accurate, complete, reliable, current or error-free. 3 LIABILITY 3.1 In respect of use of Plotter Data, we shall have no liability whatsoever to you where the Plotter Data: 3.1.1 as provided to us by any data provider or originator is erroneous, inaccurate or in an incomplete form and such fact is not known to us; 3.1.2 is uploaded to any fishing plotter incorrectly or in an incomplete form; 3.1.3 is not read in conjunction with the Kingfisher Fortnightly Bulletin or any other updates, whether in paper or digital form; 3.1.4 is erroneously interpreted by you or utilised by you in a negligent or reckless manner, or for a purpose for which it was not intended or designed. 4 PROPRIETARY RIGHTS 4.1 You acknowledge and agree that we own all copyright and other rights in and to the content of the Site. 4.2 You agree that you will not remove, obscure or alter any proprietary rights notices (including copyright and trade mark notices) which may be affixed to or contained within the Site. 4.3 You agree that you will not use any data from this site for commercial gain without obtaining permission from KIS-ORCA. 5 YOUR OBLIGATIONS 5.1 You will take reasonable steps to ensure that you comply with these Terms and do not: 5.1.1 engage in any activity that interferes with, or disrupts the operation of, the Site; 5.1.2 access or attempt to access any element of the Site by any means other than through the interface that we provide, unless expressly authorised by us; 5.1.3 reproduce, duplicate, copy, sell, trade or resell the facilities provided on the Site, unless expressly authorised by us; 5.1.4 purport to transfer or otherwise dispose of your rights under these Terms. 5.2 By submitting your personal information to us you agree to our collection, use and disclosure of such information in accordance with our privacy policy set out in Condition 7. 6 OUR OBLIGATIONS 6.1 We will take reasonable steps to ensure that the Site supplied is virus-free. 6.2 We shall use our best endeavours to ensure that access and use of the Site is not interrupted by any event within our control. 7 PRIVACY POLICY 7.1 You acknowledge and agree that: 7.1.1 we collect information about you and your use of this Site, together with any details that you may need to provide for access to, or use of, the Site; 7.1.2 we monitor user traffic patterns and Site use. This may be done through the use of cookies; 7.1.3 we use and disclose information in aggregate (so that no individual users are identified) for strategic development purposes. 7.2 We will never pass personal data to anyone else, except to any successor in title to our business and suppliers that may process data on our behalf in the United Kingdom and abroad. 8 TERMINATION 8.1 This Agreement will terminate if you or we are in material breach of any of its terms and if the breach is not remedied within the period of twenty working days after written notice of it has been given to the party in breach. 8.2 On termination of this Agreement for any reason: 8.2.1 all licences granted hereunder shall immediately terminate; and 8.2.2 termination shall not affect or prejudice the accrued rights of the parties as at termination, or the continuation after termination of any provision expressly stated to survive or implicitly surviving termination. 9 MISCELLANEOUS 9.1 This Agreement is not intended to benefit anyone other than the parties to it and, in particular, no term of this Agreement shall be enforceable under the Contracts (Rights of Third Parties) Act 1999 by a third party. 9.2 If any provision (or part of a provision) of this Agreement is found by any court or administrative body of competent jurisdiction to be invalid, unenforceable or illegal, the other provisions shall remain in force. 9.3 Each of the parties acknowledges and agrees that in entering into this Agreement it does not rely on, and shall have no remedy in respect of, any statement, representation, warranty or understanding (whether negligently made or not) of any person (whether party to this Agreement or not) other than as expressly set out in this Agreement. The only remedy available to it for breach of the Agreement shall be for breach of contract under the terms of this Agreement. End  

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Contact

[contact-form-7 id="807" title="Contact Form"]
Prefer post? The Kingfisher Information Service Seafish Origin Way Europarc Grimsby DN37 9TZ UK
To call or send an email: Tel: +44 (0)1472 252307 Fax: +44 (0)1472 268792 email: kingfisher@seafish.co.uk

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Privacy

KIS-ORCA.eu does not store any information that would, on its own, allow us to identify individual users of this service without their permission. Any cookies that may be used by this website are used either solely on a per session basis or to maintain user preferences. When users enter the KIS-ORCA website, their computers will automatically be issued with 'cookies'. Cookies are text files which identify users' computers to servers. The website then creates "session" cookies to store some of the preferences of users moving around the website, e.g. retaining a text-only preference. Cookies in themselves do not identify individual users, but identify only the computer used and they are deleted on departure from the website. Many websites do this to track traffic flows, whenever users visit those websites. The KIS-ORCA website uses third-party cookies to measure use of the website including number of visitors and how frequently pages are viewed. This helps to determine what is popular and can influence future content and development. For this purpose, KIS-ORCA uses Google Analytics to measure and analyse usage of the website. The information collected will include IP Address, pages visited, browser type and operating system. The data will not be used to identify any user personally. Users have the opportunity to set their computers to accept all cookies, to notify them when a cookie is issued, or not to receive cookies at any time. The last of these means that certain personalised services cannot then be provided to that user. This privacy statement only covers the KIS-ORCA website at www.kis-orca.org  This statement does not cover links within this site to other websites.

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Accessibility

The KIS-ORCA partners are committed to producing websites and web resources that can be accessed by all its visitors. We are always keen to hear about ways we can improve the services we provide. If you are having any difficulties using this website, please contact kingfisher@seafish.co.uk Many web browsers have accessibility features, which help you use the web in the way that best suits you. We recommend you select the browser which best suits your needs. You may also need to configure your operating sytem to tailor its accessibility features to your needs.

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The Importance of Renewable Energy Structures

The UK is the world leader in offshore renewables. We have more projects installed, more in construction and more in development than any other country in the world.

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The Future of Subsea Cables

Subsea telecommunication cables have a very long history. Since the installation of the world's first submarine cable across the Dover Strait in 1850, Subsea cables have been essential to the worlds communications infrastructure.

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Submarine Cable Maintenance

Under a Cable Maintenance Agreement and on notification from a Maintenance Authority, a cable repair ship operator will mobilise one of its vessels to conduct a repair on a subsea cable. The maintenance authority will provide an estimated position of the cable fault based on tests carried out from the cable Terminal Stations located either end of the marine cable. Permitting, Charting, and existing cable information is assessed prior to the vessel departing.

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Maintenance / Repair Operations

Submarine cables are very reliable, however, there are occasions when a repair to a cable becomes necessary.

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Cable Burial

At the planning and installation phase of a submarine cable project one of the most effective methods of protecting a submarine cable from damage caused by external aggression is to bury the cable, usually with a sea plough.

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Installation Procedures and Methods

Selection of provisional route

Once the requirement for a cable system has been identified and funds raised to build it, the first thing which happens is that a cable manufacturer and installer is contracted by the cable system parties.

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Design

Modern Fibre optic cables can carry many millions of telephone calls, together with huge amounts of video and internet data.  Approximately 95% of the world's telecommunication requirements are met by submarine cables. Cables are used because of their high reliability, capacity and security. Cables have an insignificant delay compared to satellite and are most cost-effective on major routes, hence communications costs are cheaper than satellites.

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About

The KIS-ORCA Project The Kingfisher Information Service - Offshore Renewable & Cable Awareness project (KIS-ORCA) is a joint initiative between the European Subsea Cables Association (ESCA) and the Kingfisher Information Service of Seafish. ESCA membership represents much of the subsea telecommunications and offshore renewable energy industry and they work with industry bodies like Renewable UK who recognise the benefit and value of the KIS-ORCA project. The aim of the KIS-ORCA project is to provide fishermen with accurate, up to date and free information relating to subsea cables and offshore renewable energy structures across Europe. KIS-ORCA information is available to fishermen in the following formats: Fishing Plotter Files Supplied on USB stick, all the KIS-ORCA data is available to fishermen in the most popular fishing plotter system formats and is updated annually. These files are also available to download from here. Awareness Charts Awareness charts are produced for key KIS-ORCA data areas. There are six charts surrounding the UK and localised charts for each constructed wind farm. These are available to download from here. www.KIS-ORCA.eu This interactive website allows fishermen to view subsea cable and renewable energy structures on an interactive map, download the latest data and ensure they are up-to-date with the very latest offshore activity news. The website has been produced primarily for Fishing Safety, although also gives fishermen an insight into the offshore industries they share the seabed with.

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News

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Safety

Offshore windfarms and subsea cables are increasing in number around the shores of the UK and the potential risks to fishermen, associated with these structures, need to be recognised and managed in a responsible way.

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Renewable Energy

This section contains information relating to Renewable Energy Structures, from design to installation, maintenance to future trends.

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Subsea Cables

This section contains information relating to Subsea Telecoms and Power Cables, from design to installation, maintenance to future trends.

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Homepage

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Map

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Downloads

ALL PLOTTERS (Fishing Plotter File) download

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SIS MicroPlot (Fishing Plotter File) download

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TM Planner / Quodfish (Fishing Plotter File) download

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Kingfisher Regional - North Sea North and West 2022 download

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Hornsea 2 2022 download

Hornsea 2 2022

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Borselle 1+2 2022 download

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Moray East 2022 download

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Hywind 2022 download

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Kincardine 2022 download

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Blyth Demonstrator Project 2022 download

Blyth Demonstrator Project 2022

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Teesside 2022 download

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Hornsea Project One 2022 download

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Westermost Rough 2 download

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Humber Gateway 2022 download

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Inner Dowsing & Lynn 2022 download

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Gunfleet Sands & Demonstrator Site 2022 download

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News

Scottish Hydro Electric Power Distribution (SHEPD) Marine & Freshwater Subsea Inspections – 2022

Please be advised that Aspect Land & Hydrographic Surveys Ltd (on behalf of SHEPD) will be undertaking subsea and freshwater inspections of several cables within a defined corridor.

Please be advised that Aspect Land & Hydrographic Surveys Ltd (on behalf of SHEPD) will be undertaking subsea and freshwater inspections of several cables within a defined corridor.

 

Given the different conditions and water depths anticipated at each site, a range of vessels will be utilized across the project. The inspection works will be centered on a 50m cable corridor.

 

Survey operations at these locations are expected to commence in October 2022, with start dates and anticipated durations given in the attached NtM.

 

VESSEL DETAILS

All vessels to be used during the survey and inspection campaign are owned and operated by Aspect Land & Hydrographic Surveys Ltd. Operations will be limited to daylight hours only.

 

The vessels conducting these inspections will be restricted in their ability to manoeuvre and will display the appropriate lights and shapes. Other vessels are requested to pass at a safe speed and provide a minimum clearance of 500m (COLREGs Rule 16 & 18) during marine operations.

 

All vessels will monitor VHF Channel 16 throughout survey operations. Mobile contacts for the vessels are listed at the end of the attached NtM.

See detailed map on our bulletin website
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NEP Geophysical survey (UXO and Seismic)

SafeLane Global has been requested by Lankelma to support the development of the Northern Endurance Partnership (NEP). This stage of the project requires marine geophysical surveys for Teesside, Redcar. In order to do this SafeLane will carry out a marine nonintrusive UXO survey and seismic survey to provide information on potential UXO and thickness of drift deposits, the position of bedrock and possible fault zones for targeting subsequent intrusive boreholes.

The survey area is on the UK Northeast Coast, Teesside is approx. 1500m x 500m

See detailed map on our bulletin website
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NEP Geophysical survey (UXO and Seismic)

SafeLane Global has been requested by Lankelma to support the development of the Northern Endurance Partnership (NEP). This stage of the project requires marine geophysical surveys for Humberside, Easington. In order to do this SafeLane will carry out a marine non-intrusive UXO survey and seismic survey to provide information on potential UXO and thickness of drift deposits, the position of bedrock and possible fault zones for targeting subsequent intrusive boreholes.

The survey area is on the UK Northeast Coast, Humberside is approx. 800m x 400m

See detailed map on our bulletin website
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NEP Project - Deep Geotechnical Borehole Investigation

The Kommanor Susan (Gardline Operated) will be undertaking borehole operations for the NEP project. The scope shall complete three (3) locations; 2 at the Endurance store area and 1 located approximately 5km offshore from Redcar. Each location is expected to drill to approximately 35m below the seafloor, the vessel will be stationary for up to 2 days at each location.

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Metocean Survey - West of Orkney Offshore Windfarm

The survey will commence on the 14 October 2022 and run through to 31 October 2023 using the vessel Green Isle. The total duration for survey activity is expected to take 375 days, and additional days have been included in the duration to account for unforeseen operational and/or weather delays.

Contact details:

  • Onshore FLO: phone: +44 (0) 7926418820, email: OWPLFisheries@xodusgroup.com;
  • Offshore: T: +44(0)1856 851966 (office) M: +44(0)771 056 2605 (mobile)

 

  • Name of vessel carrying out the work and equipment used: Green Isle
  • Two floating Light Detection and Ranging (LiDAR) Systems (FLS);
  • One Wave Buoy; and
  • One Acoustic Doppler Current Profiler (ADCP).
  • Port of operation: Stromness, Scotland
See detailed map on our bulletin website
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Geophysical Survey - EDF Decommissioning Hartlepool

For a period of 4 days between 03 and 16 October 2022, Ocean Ecology Ltd (OEL) will be conducting an inshore geophysical survey within the operational areas as defined on the attached notice. They survey will employ a vessel mounted Multibeam Echosounder. Works will be completed using the survey vessel "Coastal Surveyor". The survey operations do not involve towed survey equipment and no equipment will be left on the seabed.

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Geophysical surveys at Moray East Wind Farm Site

Please be advised that Moray Offshore Windfarm (East) Limited (Moray East) are planning to undertake geophysical surveys along inter-array cables within the Moray East Wind Farm Site and export cables along the cable corridor (OfTI boundary)

Please be advised that Moray Offshore Windfarm (East) Limited (Moray East) are planning to undertake geophysical surveys along inter-array cables within the Moray East Wind Farm Site and export cables along the cable corridor (OfTI boundary) (see Figure 1). These activities will be undertaken using the Green Storm survey vessel. The survey will take place from the 27th to 30th of September 2022 at the export cable, and from the 15th September to 10th October 2022 for the interarray cable within the wind farm, subject to weather conditions.

See detailed map on our bulletin website
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Rig Move from Nigg to Anglia NUI YP Platform

The Wellsafe Protector jack-up MODU will be completing a rig move from a quayside location at Nigg, Cromarty Firth to a location immediately next to the Anglia NUI YP platform in the southern North Sea. The rig move will be completed with three vessels, one towing and two tug vessels to assist with final rig position next to the platform. The rig move and well work at Anglia will be getting completed on behalf of Ithaca Energy.

The earliest possible date for the rig move is late September extending to the end of October to account for the planned rig move window and possible delays en route.

See detailed map on our bulletin website
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Harbour Energy Bathymetry & Debris Clearance Surveys

Harbour Energy have contracted the Geo Ocean V to facilitate a series of Bathymetry and debris clearance surveys in support of rig placement activities and Decommissioning Operations.

Geophysical surveys shall be conducted at the below locations, operations limited to Multibeam Echosounder, side scan sonar, magnetometer and sub bottom profiling.

 

All ops shall be executed primarily within established 500m exclusion zones, working areas of 7km x7km to allow for run-in/out and turning have been detailed below. Operations at each location are antiicpated to take a max of 24hrs subject weather delays.

 

Operations are scheduled to commence between 15th & 30th October.  Campiagn duration schedule is ~10 days.

See detailed map on our bulletin website
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Exposed Cable - Shefa-2 Segment 7

Shefa-2 Segment 7 cable break has been repaired but the PLIB operation is waiting and 2000m of cable is surface laid and exposed

Shefa-2 Segment 7 cable break has been repaired and FS deployed on seabead (WD 245m) 30th September. But due to extreme weather conditions the PLIB operation was postponed and 2 km of cable has been left surface laid and exposed and therefore of high risk to fishing vessels trawling in the area.

See detailed map on our bulletin website
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Central North Sea Electrification Project - Cable Route Survey and Habitat Assessment

Harbour Energy intend to mobilise the survey vessel m/v "Geograph" (Gardline Ltd) on ~01/08/22, to execute a cable route survey in support of future Central North Sea electrification scopes. The near shore section shall be facilitated by Titan Surveys post 15/08/2022. Survey activity will include geophysical, environmental baseline (benthic) & habitat assessment components of the offshore cable corridor, the intertidal cable corridor, the connection cable corridors and the offshore hub area.

The PfS UK cable to the CNSE Offshore Hub will be approximately 224.4 km in length extending from a landfall location by Peterhead on the Scottish coast to the offshore hub location in the Central Graben area of the North Sea. The proposed coordinates of the offshore hub and UK landfall locations are provided below.

Power from Shore UK - 210km

Easting (m)

ED50 TM0

Northing (m)

ED50 TM0

Latitude (DD)

WGS84

Longitude (DD)

WGS84

Latitude (DMS)

WGS84

Longitude (DMS)

WGS84

Latitude (DMS)

ED50

Longitude (DMS)

ED50

CNSE Hub Location

600685.04

6333603.06

57.133

1.662

57° 07' 57.810" N

01° 39' 42.643" E

57° 08' 00.164" N

01° 39' 48.218" E

Peterhead

NA

NA

57.478

-1.789

57° 28' 40.800" N

01° 47' 20.400" W

57° 28' 43.263" N

01° 47' 14.450" W

 

Planned routing is between the following platforms;

Landfall near Peterhead ref attached charting

Offshore Hub location near Shearwater

Shearwater Platform

Judy Platform

Elgin Platform

Gannet A Platform

Etap Platform

 

Ref attached chartlet and coordinate list for further details of proposed routing.

 

Please contact the undersigned for further information.

 

See detailed map on our bulletin website
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Greater Britannia Area Shallow Seismic Survey Operations

Harbour Energy PLC have engaged the Ocean Reliance to conduct 3DHR & 2DHR Shallow Seismic Survey Operations within the Greater Britannia Area. Ongoing Survey Operations from mid August to mid December 2022

Site surveys shall be conducted at;

 

Balmoral Area                 - Commencement ~ 18/09/2022 - 15/12/2022

Leverett Area                   - Contingency survey scope potential ops from present day until ~15th October 2022, scope shall be deferred into Q2/2023

Brodgar East                   - Commencement ~ 10/10/2022 - mid November 2022

 

Vessel shall utilise a 1200m streamer and be restricted in ability to manouvre all vessel requested to maintain a wide berth

See detailed map on our bulletin website
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Tolmount East Development Drilling

Tolmount East Drilling Operations. The Tolmount East well is due to be further developed by the MODU Maersk Innovator. Rig is scheduled to arrive at the location ~1st November 2022 and shall remain on station for ~3 months. A statutory 500m/z will be established around the MODU, all vessels are requested to maintain a wide berth and recover any static gear within at least 1nm of the location. 

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Tolmount Platform Operations, Walk to Work Support Vessel

As part of the Tolmount Platform annual shutdown operations, the MSV Norside Cygnus will provide walk-to-work services from 04/10/2022 for approximately 21 days at the Tolmount platform location. The Tolmount gas field is situated in Block 42/28d, in the UK southern North Sea.

MV Norside Cygnus will be conducting walk to work operations and close approach marine ops at the Tolmount platform 500m zone.

 

The vessel will be operating in DP with restricted manoeuvrability with walk to work bridge deployed at regular periods.

 

A temporary exclusion of 500m is requested over 360 degrees around the vessel when present on location.

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Rig - Well-Safe Guardian

Notice to alert sea users to P&A activity within the Buchan and Hannay fields using the Well-Safe Guardian MODU in Block 20/05. 20/05c-8X (H01) well 20/05c-9 (H02) well

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Construction of Wind Farm - Triton Knoll

Activities related to the development of the Triton Knoll wind farm continue, as detailed below. For background information visit: http://www.tritonknoll.co.uk. Mariners are advised that the asset installation phase of the Triton Knoll OWF is now complete. Post-installation commissioning and repair activity is continuing and it is anticipated that construction vessels required for repair work will be returning to site occasionally in early 2022 and further notices will be issued accordingly.

Mariners are advised that the following vessels continue to be active at the Triton Knoll Offshore Wind Farm (TKOWF) as outlined within previously issued NtM's:

Vessel Name

Type

Call Sign

MMSI

IMO

Operating Port

Commence Date

Windcat 11 Crew Transfer Vessel 2BIS9 235066459 N/A Grimsby 14/12/2020
Esvagt Havelok Service Operations Vessel OYFR2 219026496 9878981 Grimsby 25/09/2021
Seacat Courageous Crew Transfer Vessel 2IDC9 235108711 9758052 Grimsby 01/05/2022
Cerys Line Utility Vessel - Subsea Surveys MGMR5 232025503 8228842 Grimsby 13/06/2022

 

All vessels can be contacted via VHF channel 16 when operational in field.

 

Activities carried out over the previous 7 Days:

  • Ongoing activities at Offshore Sub Station Platforms East & West continues.
  • Ongoing activities at Offshore foundations continues.
  • Wind Turbine Generator Service and maintenance continues infield

Activities planned for the next 7 days:

  • Ongoing activities at Offshore Sub Station Platforms East & West continues.
  • Ongoing activities at Offshore foundations continues.
  • Wind Turbine Generator Service and maintenance continues infield.

*** Note ***

 

All 90 WTG's have now been fully installed, whilst WTG commissioning and service continues.

All Export Cables are fully installed/buried and need to be deemed live/energised.

All Inter Array Cables are fully installed and buried and need to be deemed live/energised.

Whilst the main installation works have been completed, major construction commissioning works are continuing.

 

*** Note ***

 

Whilst TKOWFL is reopening the site to fishing from the 14th December 2021, TKOWFL kindly request that all fishermen intending to fish within the boundaries of the Triton Knoll wind farm, contact the Triton Knoll control room prior to entering and exiting the field, and inform them of their fishing intentions.

 

This precaution is requested to safeguard all vessels operational at the TKOWF site (including fishing vessels) and your cooperation, to ensure the safety of all parties is appreciated. The following contact details should be used when notifying the Triton Knoll control room of fishing activity:

 

Control Room Manager: Derek Whyte

Radio: VHF channel 16

Callsign: TK MCC

Phone: +44 1793 896250

Email: tkcr@rwe.com

 

*** Note ***

 

Application of Triton Knoll Wind Farm Safety Zones During Construction

The Secretary of State has granted the Application of Safety Zones on the Triton Knoll Wind Farm Project as follows:

  • 500m “rolling” safety zones around any structure where construction is being undertaken (as indicated by the presence of construction vessels).
  • 50m pre-commissioning safety zones surrounding partial structures or completed structures prior to commissioning.

Mariners are advised that all foundations monopiles have been installed and all inter-array and export cables have been installed.

 

Local Notice to Mariners Recently

NtM 001-2022 (24th January 2022)

NtM 002-2022 (28th January 2022)

NtM 003-2022 (08th March 2022)

NtM 004-2022 (09th March 2022)

NtM 005-2022 (14th March 2022)

NtM 006-2022 (30th March 2022)

NtM 007-2022 (7th April 2022)

NtM 008-2022 (7th April 2022)

NtM 009-2022 (10th April 2022)

NtM 010-2022 (19th April 2022)

NtM 011-2022 (04th May 2022)

NtM 012-2022 (04th May 2022)

NtM 013-2022 (06th May 2022)

NtM 014-2022 (06th May 2022)

NtM 015-2022 (13th May 2022)

NtM 016-2022 (18th May 2022)

NtM 017-2022 (08th June 2022)

NtM 018-2022 (22nd June 2022)

NtM 019-2022 (30th June 2022)

NtM 020-2022 (11th July 2022)

NtM 021-2022 (11th July 2022)

NtM 022-2022 (03rd August 2022)

 

Navigation Warning - 08th January 2021

 

Mariners are advised that the remnants of a Wave Rider Buoy sinker weight and partial rigging are located within the Triton Knoll Offshore Wind Farm Construction site at the following location;

 

53° 30.442N 000° 50.564E

 

It is advised that the partial rigging could potentially be floating up to 9.7m above the seabed, reducing the navigable safe water in the immediate area to 10m LAT.  Mariners are advised to avoid the indicated position by 250 metres.

 

Possible Dangers to Navigation - Properties of the polypropylene show that the rope is buoyant, this makes the line sensitive for thruster currents. Taking the site water depth into consideration (19.7m LAT) and the maximum expected height above seabed of the rope 9.7m the line is expected to be floating submerged at approximately -10m LAT. In addition, it is noted that over time sediments will be trapped between the fibres and the heavier rope may finally sink. The polypropylene rope may impose a risk to foul propellers / propulsion of vessels due to the buoyant nature of the rope. As the rope is submerged at a depth of ~-10m LAT the risk is considered minimum for vessels with a shallow draught (<5m) and medium for a vessel with a deeper draught (>5m). Over time sediments will be trapped between the fibres and the heavier rope may finally sink thereby reducing the risk to propellers/propulsion of vessels. The clump weight itself (chain) is expected to have sunk into the seabed and has no significant height above seabed. In addition, the edges of the clump weight are mostly rounded (chain), the risk the clump weigh imposes to fishing activities/gear is therefore considered to be minimal.

 

Navigation Warning - 16th March 2021

 

Mariners are advised that two UXO targets have been confirmed within the Triton Knoll Offshore Wind Farm Array.

 

Mariners are advised that the two confirmed targets are located within 20 metres water depth (LAT) and a 10 metre radius exclusion zone is required around each target.  The following table provides the coordinates and a description for each target.

 

Description of Target Latitude Longitude

Water Depth

(LAT) Metres

Required Exclusion

Zone (Metres Radius)

Archaeological - The item is thought to be an air-delivered bomb.  It appears to be in a stable condition and is resting on the seabed.  Marine growth and concretion cover the body, indicating it has been in situ for a significant duration. The tail section of the bomb is missing, which is typical of unexploded bombs from WWII found in these circumstances and there is a significant hole in the case. The dimensions and characteristics gathered are consistent with a 500kg German bomb. Considering the state of the bomb the Net Explosive Quantity of the bomb is likely to be <5kg. 53°31'50.249"N 00°47'45.908"E 20 10
Archaeological - The item is thought to be an air-delivered bomb.  It appears to be in a stable condition and is resting on the seabed.  Marine growth and concretion cover the body, indicating it has been in situ for a significant duration. The tail section of the bomb is missing, which is typical of unexploded bombs from WWII found in these circumstances and there is a significant hole in the case. The dimensions and characteristics gathered are consistent with a 500kg German bomb. Considering the state of the bomb the Net Explosive Quantity of the bomb is likely to be <5kg. 53°31'49.895"N 00°47'45.115"E 20 10
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Dogger Bank A IAC Pre-Lay Grapnel Run (PLGR)

The Multifunctional Anchor Handling Tug (AHT) with DP1, BB OCEAN, will perform the first campaign of the Pre-Lay Grapnel Run operations in Dogger Bank A OWF Inter Array Cable Array Area.

This campaign will commence on the 12th of October 2022 and continue until approximately 15th of November 2022. The works will be continuous, 24 hours a day. Charts of the DBA array area are provided below. The operations include a single pre-lay grapnel run over the centre of part of the array cable routes prior to IAC installation by means of a grapnel train to mitigate the risk of encountering subsea obstructions such as discarded fishing gear, wires, etc. During operations, the BB OCEAN will be restricted in its ability to manoeuvre as defined under COLREGs (International Regulations for Preventing Collisions at Sea 1972) and will display the appropriate day shapes and lights. The vessel will also transmit an Automatic Identification System (AIS) message. It is requested that all vessels maintain a minimum of 1.5Nm separation distance from the AHT and pass at reduced speed. Fishing gear or other equipment with seabed intervention should not be deployed when approaching the working corridor.

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Subsea Foundation Inspection - Moray Offshore Windfarm (East)

Please be advised that Moray Offshore Windfarm (East) Limited (Moray East) are planning to commence subsea Remotely Operated Vehicle (ROV) foundation inspections at all locations within the bounds of Moray East Offshore Windfarm on the 1st April 2022 for 130 days. This includes scour visual inspections at all jackets, and Cable Protection Systems entering substructures at selected locations. The area of Operation is shown in Figure 1 below and will be carried out using the Dalby Ribble

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Offshore Construction - Dogger Bank A Offshore Wind Farm

Offshore Construction of the Dogger Bank A Offshore Wind Farm commenced on the 18th of March 2022. The development of the windfarm is made up of several elements - current ongoing elements  are described below in the 'full notice' and in the attached file. This notice will be updated weekly, giving information on the progress and resources involved in the offshore project.

The development of the windfarm is made up of several elements - current ongoing elements include:

 

Foundation Installation       

The Offshore installation vessel, HLV Seaway Strashnov, will install monopile foundations, within the Dogger Bank A construction area. The works will commence on the 28th of September 2022, continuing until approximately Q3 2023 The works will be continuous 24 hours a day.

 

 A running list of the next locations to be installed and completed foundation locations will be presented in the Weekly Notice of Operations.

 

 

For further details of current offshore construction activities, please contact the people below or see attached Weekly Notice of Operations.

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2 x Floating Lidar Metocean Buoy Deployments - NOAH Met Mast, Blyth

Partrac has two Floating LiDAR FLS200 buoys deployed in close proximity to the NOAH Met Mast, 3nm off the coast of Blyth. Partrac is planning to recover one LiDAR buoy (E03), and service the second LiDAR buoy (E13) which will require maintenance in Port of Blyth followed by redeployment. The works are scheduled to be carried out from 04/10/22 using the vessel Isle of Jura, weather permitting. During recovery operations the two LiDAR buoys will be lifted onto the back deck of the vessel.

METOCEAN BUOY

 

The metocean buoys record meteorological data and are anchored to the seabed by means of a mooring chain and a ground weight. The buoy has dimensions of 4m x 4m, and when deployed the tallest mast on the buoy sits approx. 4m above the water line.

 

The surface buoys will include: A day shape of yellow St Andrews Cross; radar reflector; and yellow navigation light.  The light will have a flash sequence 5Fl(20s).

 

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Debris and Environmental Surveys around Brigantine BR, Shamrock QS and Clipper platforms

Debris survey around Brigantine BR (MBES, SSS), within 1 nautical mile around the platform. Environmental surveys around Clipper and Shamrock QS (MBES, SSS, camera transects, grab sampling), within 4 nautical miles around the platforms.

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Rig - West Linus

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Haven

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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NW Schooner Subsea Well - Missing Debris Cap

The Debris Cap for the NW Schooner subsea well has been identified as missing, leaving the wellhead more vulnerable to snagging on fishing nets. The Debris Cap is 4.5m x 3.9m x 1.4m and approx 3.5 tonnes, whilst the wellhead stands 6m off the seabed.

The approximate dimensions of the Debris Cap is 4.5m x 3.9m x 1.4m with a weight of approximately 3.5 tonnes. It is not known whether the Debris Cap is lying within a 500m zone of the well. A 200m x 200m area centred on the well has been searched, with no sight of it. Therefore the exact location of the Debris Cap is unknown. The loss of the Debris Cap leaves the NW Schooner wellhead more vulnerable to snagging from trawler/fishing nets. The approximate size of the tree with over trawl legs deployed is 7.8m x 7.8m x 6m high.

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Seabed hazards following removal of Banff FPSO anchors & moorings

A series of deep, steep sided trenches at mooring line touchdown points and areas of disturbed seabed with clay boulders at the anchor locations, caused during recovery of the anchors. Moorings and anchors have been removed, leaving the seabed features.

10 mooring line trenches, varying in length from 70m to 180m; up to 8 metres wide and up to 9 metres deep. These trenches are steep-sided (in many cases vertical, cut into the clay seabed).

 

10 anchor scars, consisting of shallow trenches (20-90 metres long), shallow-sided depressions (less than 2 metres deep) but with areas of significantly disturbed seabed, including clay boulders up to 3 metres in size.

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Snagging Hazards - Decommissioned Murchison jacket footings - Fishing Advisory Zone

600m x 600m box covering the remaining jacket footings post-decommissioning. Area inside this region has NOT been verified by overtrawl survey.

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Snagging hazard - Near Well 3/03-12

Unidentified snagging hazard at, or close to, the location of well 3/03-12.

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Exposed and Free Span - Greater Gabbard Offshore Wind Farm

Results of the Greater Gabbard OFTO export cable survey. The chart lists the changes to the exposures on the three export cables, on the inshore section between KP 3 and KP 5 with a free span remaining around KP 4. Between KP 36 and KP 38 there are some exposed sections as the cables enter the site. In addition, although listed as exposures on the chart, there are areas of shallow burial at KP10 and a cable exposure on the interconnector cable within the site.

Please find attached a chart showing the results of the Greater Gabbard OFTO export cable survey. The chart lists the changes to the exposures on the three export cables, on the inshore section between KP 3 and KP 5 with a free span remaining around KP 4. Between KP 36 and KP 38 there are some exposed sections as the cables enter the site. In addition, although listed as exposures on the chart, there are areas of shallow burial at KP10 and a cable exposure on the interconnector cable within the site.

 

The exposed/shallow burial areas are shown as the coloured dots on the cable route highlighted in a black box.  Equitix (Greater Gabbard OFTO) have asked that all Fishermen operate with caution when fishing anywhere on the cable route and particularly the areas that are shallow buried around KP10.’

 

Coordinates of exposed/shallow burial areas are shown on the attached chart.

 

The OFTO is updating its risk assessments to determine the extent of remedial measures that may be required. Equitix intend to provide an update on remediation after the risk assessment exercise is complete.’

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Dropped Pipeline - Carrack QA Platform

Dropped Pipeline 16 mtr x 4" section of redundant Pipeline resting on seabed. Plans to recover

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R100 Seg 2.03a - Notification of surface buoys

Please be advised that the R100 Seg 2.03a telecommunication cable has been wet stored and fitted with two AIS buoys. The removal of these buoys will be dependent on weather however they are likely to be removed within 1 week.Vessels should maintain a distance of at least 250m from the deployed buoys. Please distribute this information accordingly so that other sea users are aware.

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UXO geophysical surveys within the EA HUB Offshore Wind Farm area

Scottish Power Renewables UXO geophysical surveys within the EA HUB OWF area. Scottish Power Renewables (SPR) has contracted Fugro GM Marine Limited (Fugro) to carry out UXO surveys located on their site east of Lowestoft, United Kingdom, in the southern North Sea and covers an area of approximately 5,900 km2 for the East Anglia HUB offshore windfarm.

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Rowan Gorilla V Rig Departure from Schooner A Platform (Block 44/26a)

The Rowan Gorilla V Rig will depart from the Schooner A platform ca. 10th October 2022 after which the Schooner platform's Solar Aids to Navigation will be in use.

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Blyth OBN Equipment Trial

Glomar Wave (Call Sign 3FXF4) will be carrying out Ocean Bottom Node Survey work between the locations noted below: The Vessel will be towing a seismic source and will have limited manoeuvrability; please keep 1Nm minimum CPA. Seismic Source Volume = 800cu.in source at 2000 psi operating pressure. Start Date = around 10th October 2022. Duration expected to be approx. 1 week.

Objective is to deploy a limited number of Ocean Bottom Node (OBN) seismometers over a small area to test the operation of the equipment. The trial will involve the deployment of traditional OBN seismometers on the seafloor using a Remotely Operated Vehicle (ROV) plus free flying glider technology based OBN vehicles, along with a current profiler and then the use of an 800-cu. in. seismic source array towed behind a vessel.

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Geophysical Survey - EDF Decommissioning Heysham

For a period of 2 days between 03 and 16 October 2022, Ocean Ecology Ltd (OEL) will be conducting an inshore geophysical survey within the operational area as defined on the attached notice. They survey will employ a vessel mounted Multibeam Echosounder. Works will be completed using the survey vessel "Coastal Surveyor". The survey operations do not involve towed survey equipment and no equipment will be left on the seabed.

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Survey - Norfolk Offshore Wind Farm

Please be advised that Fugro will be undertaking a geophysical and geotechnical site survey on behalf of Vattenfall Wind Power over the Norfolk future wind farms in the North Sea.

The M/V Fugro Discovery will be deployed over the survey area starting on or around the 01.08.2022 until mid-October 2022. The MV Fugro Discovery will be conducting offshore geophysical survey activities using MBES, SBP, SSS (towed) and MAG (towed). Other vessels should maintain an appropriate and safe distance of 500 m, where possible, when passing the survey vessel(s) whilst undertaking survey operations and should pass at the lowest possible speed to avoid vessel wash effects. 

 

The M/V Normand Mermaid will be deployed over the survey area (Norfolk Boreas and briefly Vanguard West area) starting on or around the 15.09.2022 for three weeks. Vessel shall deploy and retrieve seabed equipment on each investigation location where it will remain stationary for a period of 2-12 hours.

 

The M/V Gargano will be deployed over the survey area (Norfolk Boreas and briefly Vanguard West area) starting on or around the 03.10.2022 for three weeks. Vessel shall be drilling on each investigation location where it will remain stationary for a period of 8-24 hours.

 

The M/V Kommandor Orca will be deployed over the survey area (Norfolk Boreas and briefly Export Corridor area) starting on or around the 03.10.2022 for eight weeks. Vessel shall deploy and retrieve seabed equipment on each investigation location where it will remain stationary for a period of 2-12 hours.

 

The M/V Fugro Pioneer and the M/V Fugro Frontier will be deployed over the survey area (OSS locations and the Norfolk Boreas area) starting on or around the 10-20.10.2022 for up to eight weeks. Vessels will be towing sparker sources and streamers at low speed. One nautical mile of CPA (Closest Point of Approach) is requested from each of these two vessels.

 

 

Contact Details – Fisheries Liaison

For fishery queries please contact:

Jonathan Keer; jonathan@brownmay.com; 07850 604851

Freya Sandison; freya@brownmay.com; 07857 500609

 

Contact Details – Vattenfall

Further enquiries should be addressed to:

Mikkel Klahn; mikkel.klahn@vattenfall.com

Rory Anderson; rory.anderson@vattenfall.com

Matina-Christina Sougle - matina-christina.sougle@vattenfall.com

Emma Merryfield - emma.merryfield@vattenfall.com

 

 

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2022 Rock Dumping Campaign

Vessel Name TBC (Call Sign xxxx) will be carrying out Rock Dumping work in the vicinity of the locations noted below: Start Date = around 1st October 2022. Duration expected to be approx. 14 Days (to 15th October 22)

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Bristol Channel Regional Geophysical Survey

Shoreline Surveys will be carrying out a bathymetric & side scan sonar survey on Crown Estate Licence Areas 472 & 526. on behalf of Hanson Marine, Tarmac & Cemex. Shoreline Surveys will be conducting the surveys using the vessel Shoreline, and anticipate work being complete within 11 days.

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Bristol Channel Regional Benthic Sampling Survey

The vessel Argyll Explorer operated by Ocean Ecology will be carrying out RMA benthic ecology monitoring of the Licence Areas 472 & 526. This will involve taking grab samples in areas within and adjacent to the Crown Licence Areas 472 & 526, using a methodology prescribed by our regulators. Sampling from the seabed will be via 0.1m2 Hamon grab, and Ocean Ecology will be using the Argyll Explorer.

Sampling will be conducted using Ocean Ecology’s 0.1 m sq mini-Hamon grab samplers and will be collected within 50 m of the target sampling location. Single grab samples will be collected at each station to collect approximately 10 L of sediment from which a sub-sample of the sediment (a volume of ~500 ml dependent on the nature of the sediment and whether a macrofaunal sample is required or not) will be removed for characterisation of the physical nature of the substrate (via PSD analysis).

 

 

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SSER Berwick Bank Offshore Windfarm - Geotech Survey - Interim 2B

Mariners are advised that SSE Renewables will be returning to Berwick Bank Wind Farm area to undertake further Geotechnical survey work. The survey will be within the proposed Berwick Bank Wind Farm site boundary.

SSE Renewables are not expecting fishermen to relocate gear - on this occasion the vessel(s) will work around any gear on location. A scouting/guard vessel will operate ahead of the survey vessel to ensure that this can be achieved.

 

The survey work is being undertaken by Fugro and will be conducted from the vessel Fugro Scout. The geotechnical survey is due to start in October 2022. The scouting/guard vessel will be the Artemis.

 

The scope of work within the main array area will comprise up to 35 composite rotary boreholes advanced as a combination of sampling in sand and clay and CPT downhole pushes through suitable soils and then extended by rotary core drilling to depths up to 40 m below seabed.

 

During the campaign, the survey vessel will be deploying underwater equipment to obtain cores and assess the geology in the area. As a consequence of equipment being deployed and the modes of operation, all mariners are advised to keep a safe clearance distance of no less than 500 m from the vessel(s). No towed equipment will be used.

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Subsea Structures - Evelyn Valve Skid

Tailwind Mistral Ltd intent to Install the Evelyn Valve Skid Located near the Evelyn EV01 Well

The Evelyn Valve Skid (EVVS) is part of the Evelyn field development, consisting of a gas lift flowline piggy-backed onto a new production pipeline and a new umbilical for carrying control, power, hydraulic lines and chemicals from Triton FPSO to Evelyn. 

 

Evelyn will be connected to Triton via the existing Triton P1 Bittern production riser. 

 

The Evelyn valve skid (EVVS), will be installed at Evelyn, near the location of the EV-01 well, it will be connected to the EVVS from the EV01 xmas tree by the rigid production and gas lift spools pipeline and electrical and umbilical jumper bundles.  A 9.5 km control umbilical will be installed to the EV01 well via the EVVS to the umbilical riser base at Triton FPSO.  The umbilical will provide hydraulic, electrical and chemical supplies from the Triton dynamic umbilical at riser base SY9516A to the EVVS and wells.

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Pipeline Installation - Gannet E Expansion

Tailwind Mistal Ltd intends to install pipelines between the Existing Gannet E Manifold (GEM) to the new Gannet E Tie-in Valve Skid (GETVS) and a 9" production line between the GETVS to the GEEBB Manifold.

Pipeline route runs from the Gannet E Tie in Valve Skid (GETVS) structure at the drill centre in an easterly direction to a comingling tie-in the GEEBB manifold. 

The GEEBB manifold will be located outside the Triton swing circle, but inside the 500m safety zone.

 

The 9-inch flexible flowline will be trenched and buried using trench backfill material. Areas which are not trenched at the Gannet E and Triton approaches will be protected from fishing gear interaction and/or dropped objects by a combination of rock placement and concrete protection mattresses.

 

Methanol will be delivered from the Gannet E Manifold (GEM) to the Gannet E Tie-in Valve Skid (GETVS) via a dedicated 3/4" thermoplastic hose within the GEM to GETVS chemical/hydraulic jumper bundle.  The jumper bundle containing the methanol hose and will be protected from fishing gear interaction and/or dropped objects by a concrete protection mattresses and additional grout bags where concrete mattress placement is not practical. 

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Subsea Structure - Gannet E Tie-In Valve Skid (GETVS)

Tailwind Mistral Ltd intends to install the Gannet E Tie-In Valve Skid at the Gannet E Field

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Pipeline Installation - Evelyn Field

Tailwind Mistral Ltd intends to install pipelines and umbilicals from the existing Evelyn Well EV01 to the GEEBB Manifold and the Triton riser base, this will comprise: 8" production line with 3" piggyback gas lift line, Control umbilical line.

The Evelyn field is located within UK licence P1792 approximately 7.5km to the South West of the Dana Operated Triton FPSO. The development will consist of a single gas lifted production well EV01.

 

The 8" Pipeline route runs from the Evelyn valve skid (EVVS) drill centre tie-in structure in a north east direction to a comingling tie-in structure (GEEBB) which will comingle production fluids from Gannet E, Evelyn and Bittern. The GEEBB structure will be located outside the Triton swing circle, but inside its 500m safety zone. The 8-inch pipeline will be trenched and buried using trench backfill material. Areas which are not trenched at the Evelyn and Triton approaches will be protected from fishing gear interaction and/or dropped objects by a combination of rock placement and concrete protection mattresses.

 

The 3" Pipeline route runs in a south westerly direction between the GEEBB tie-in and distribution structure to the Evelyn valve skid (EVVS) drill centre tie-in structure. The GEEBB structure will be located outside the Triton swing circle but inside its 500m safety zone.  The 3-inch gas lift pipeline will be piggybacked to the larger 8-inch production pipeline and will be trenched and buried using trench backfill material. Areas which are not trenched at the Evelyn and Triton approaches will be protected from fishing gear interaction and/or dropped objects by a combination of rock placement and concrete protection mattresses.

 

The 9.5 km control umbilical will be installed from the EVVS to the umbilical riser base at Triton FPSO.  The umbilical will contain a total of 16 cores and will provide hydraulic, electrical and chemical supplies from the Triton dynamic umbilical at riser base SY9516A to the EVVS and wells

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Decommissioning - Amethyst A2D

Please be advised that decommissioning activity will be taking place on the Amethyst A2D. Arrival and siting of jack up barge alongside the platform for rendering the platform hydrocarbon free in preparation for the removal of the topside. Earliest Start date 19th July 2022 and estimated completion 30th November 2022.

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RV Cefas Endeavour - Pelagic ecosystem survey in western Channel and eastern Celtic Sea (PELTIC) -6

Annual acoustic and trawl survey to map and quantify the small pelagic fish community for stock assessment and monitoring the health of the ecosystem.

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RV Cefas Endeavour - Pelagic ecosystem survey in western Channel and eastern Celtic Sea (PELTIC) -5

Annual acoustic and trawl survey to map and quantify the small pelagic fish community for stock assessment and monitoring the health of the ecosystem.

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RV Cefas Endeavour - Pelagic ecosystem survey in western Channel and eastern Celtic Sea (PELTIC) -4

Annual acoustic and trawl survey to map and quantify the small pelagic fish community for stock assessment and monitoring the health of the ecosystem.

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RV Cefas Endeavour - Pelagic ecosystem survey in western Channel and eastern Celtic Sea (PELTIC) -03

Annual acoustic and trawl survey to map and quantify the small pelagic fish community for stock assessment and monitoring the health of the ecosystem.

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RV Cefas Endeavour - Pelagic ecosystem survey in western Channel and eastern Celtic Sea (PELTIC) -02

Annual acoustic and trawl survey to map and quantify the small pelagic fish community for stock assessment and monitoring the health of the ecosystem.

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RV Cefas Endeavour - Pelagic ecosystem survey in western Channel and eastern Celtic Sea (PELTIC) -01

Annual acoustic and trawl survey to map and quantify the small pelagic fish community for stock assessment and monitoring the health of the ecosystem.

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Survey - Dogger Bight N

Commencing in February 2023 for approximately two months , bathymetry survey operations will be undertaken in the Dogger Bight area. Survey operations will be on a 24-hour basis, sailing survey lines between 5-10 knots. Equipment will not be towed and only a hull mounted multibeam echosounder will be used. The survey vessel will exhibit the lights and shapes prescribed and will maintain a listening watch on VHF Channel 16.

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MetOcean Buoy Installation

Installation a floating LiDAR buoy and a Waverider buoy for met ocean data gathering. It is planned to install a floating LiDAR buoy and a Waverider buoy for met ocean data gathering. The port of mobilisation is Dundee and the installation will take place using a Multi-cat type vessel.

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MetOcean Navigation Buoy and Seabed Frame Recoveries

All metocean buoys and seabed frames have been recovered from the Northern Endurance Partnership (NEP) project area and the works have been completed.

Partrac installed metocean buoys and seabed frames in early March 2022 to monitor the local metocean conditions within the NEP carbon capture project area at 7 separate site locations M01 – M07. Following the recovery of the M05 site on Saturday 24th September 2022, Partrac can confirm that all buoys and frames have been recovered from the NEP project area and seabed, and the metocean works have been completed.

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Rig - Askepott

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - West Elara

This oil & gas drilling rig has moved to this new position. Rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Transocean Enabler

This oil & gas drilling rig has moved to this new position. Rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Marine Aggregate Industry Survey Notification - South Coast Region

A geophysical and grab survey will be conducted in the regions attached to this notice during May and October 2022.

Please be advised that from 10 May 2022 the South Coast Dredging Association will be undertaking a geophysical and seabed sampling surveys along the South Coast region within the areas shown in the charts. The surveys will employ hull-mounted multibeam echo sounder and towed sidescan sonar systems to acquire seabed data and a Hamon grab and / or a seabed video system to acquired seabed samples.

 

The geophysical works will be completed by personnel from GeoXYZ on the Geo Ocean IV. The seabed sampling works will be completed by personnel from Eco Marine Consultants on the Aquatech Surveyor. Vessel details are presented in Table 1 below. The work is expected to take approximately 6 to 8 weeks in suitable weather conditions, although adverse weather conditions may mean that the total estimated survey time is spread over a longer period.

 

This notification is intended for circulation to all interested parties undertaking activities in the vicinity of the planned survey works.  Further details regarding the surveys can be obtained by contacting either the Liaison Programme Coordinator or the Fishing Liaison Representative using the contact details at the head of this communication.

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Area 472 and 526 Geophysical and Ecological survey

A geophysical and grab survey will be conducted in the regions attached to this notice during August and October 2022.

Please be advised that from the beginning of August 2022 the Resource Managenment Association will be undertaking a geophysical and seabed sampling surveys around their licence areas 472 and 526 within the Bristol Channel. The surveys will employ hull-mounted multibeam echo sounder and towed sidescan sonar systems to acquire seabed data and a Hamon grab and / or a seabed video system to acquired seabed samples.

 

The geophysical works will be completed by Shoreline Surveys. The seabed sampling works will be completed by personnel from Ocean Ecology on the Argyll Explorer. The work is expected to take approximately 6 to 8 weeks in suitable weather conditions, although adverse weather conditions may mean that the total estimated survey time is spread over a longer period.

 

This notification is intended for circulation to all interested parties undertaking activities in the vicinity of the planned survey works.  Further details regarding the surveys can be obtained by contacting either the Liaison Programme Coordinator or the Fishing Liaison Representative using the contact details at the head of this communication.

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Hydrographic Survey Liverpool Bay

Hydrographic and Geophysical Survey of ENI Liverpool Bay Assets

Inspection survey of ENI Liverpool Bay assets comprising multibeam echo sounder and towed side scan sonar / magnetometer.

  • Survey of all LBA pipeline assets and corridors
  • Survey of all LBA platform Approaches
  • Survey of all LBA wellheads
  • Survey of Resurgam wreck

All works will be undertaken using the AMS Panther operating from the ports of Liverpool and/or Mostyn.  The vessell will be towing equipment upto 150m astern of the vessel and will be displaying restricted maneuverability shape/lights/AIS at all times in accordance with the regulations.  A wide berth is requested at all times when the vessel is operating.  A VHF watch (CH16) will be maintained at all times.

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Deployment of Two Metocean Buoys, with Co-Located Guard Buoys - Dogger Bank

The deployment of two metocean and two guard buoys at two locations within the Dogger Bank South Project Area has been extended into March 2023. Please maintain a 500 m clearance from the deployed equipment.

The guard buoys are yellow pillar shaped special marks, exhibiting a yellow St Andrews Cross day shape and radar reflector.  The buoys are each fitted with a yellow light, flash sequence: Fl (5) Y 20s 

 

The metocean buoys are 1.1 m diameter spherical buoys, fitted with a navigation light, flash sequence: Fl (5) Y 20s. 

 

Further details, including vessel informaiton, will follow ahead of deployment operations. 

 

 

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Dropped steel pipe (70cm x 10cm)

A section of steel pipe (70cm x 10cm) has been lost from the vessel Ocean Zephyr and is sticking up vertically from the seabed. Planning is underway to recover this section

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Havhingsten fibre optic telecommunication Whitley Bay Stub Route

Please be advised that installation of the Havhingsten fibre optic telecommunication Whitley Bay Stub Route is planned to commence from 13th October within 12 nautical miles. It is anticipated that installation operations will occupy up to a maximum 500m width of the seabed (250m either side of cable). The cable itself will occupy only 40mm of the seabed. The cable lay will be performed on a 24-hour basis, the progress speed is normally between 0.5 - 1.0 km/hour (17-20km per average day).

Please be advised that installation of the Havhingsten fibre optic telecommunication Whitley Bay Stub Route is planned to commence from 13th October within 12 nautical miles.

 

The supplier of the Havhingsten cable stub is Alcatel Submarine Networks (ASN). Intertek are the environmental and permitting consultants.

 

The proposed stub cable route in the Whitley Bay, NE (inshore) region is shown below. The Whitley Bay Stub Route is to be installed between the Beach Man Hole and the territorial sea limit but it will not yet be connected to the telecommunication network. This cable is to provide infrastructure for the network to expand relatively easily when demand is required within the next 10 - 15 years.

 

Pre-lay Grapnel Run (PLGR) will be completed before installation of the cable. Installation will be via industry standard burial tools including water jetting and ploughing. Target cable burial depth is 2m below seabed level.

 

The main form of cable protection (in addition to burial) is articulated pipe. Articulated pipe will be applied to the cable on the beach from the end of the seaward duct for approximately 425m. The cable protected with articulated pipe will be buried to a target 2m depth, or bedrock, where possible to ensure cable stability.

It is anticipated that installation operations will occupy up to a maximum 500m width of the seabed (250m either side of cable). The cable itself will occupy only 40mm of the seabed.

 

The cable lay will be performed on a 24-hour basis, the progress speed is normally between 0.5 - 1.0 km/hour (17-20km per average day).

 

Planned timings of works (exclusive of weather):

 

Description

Expected Start Date

Expected End Date

Beach & nearshore diver installation (<15m water depth)

13 October 2022

31 October 2022

Pre-Lay Grapnel Run

(>15m water depth)

15 October 2022

16 October 2022

Offshore Cable Installation (>15m water depth)

17 October 2022

21 October 2022

 

All planned installation dates/durations are subject to weather.

 

PLGR will be undertaken during the 15 to 16 October. Installation between the shore end and <15m water depth will be undertaken during the 13 to 31 October. Installation from >15m water depth will be undertaken during the 17 to 21 October.

 

All vessels are requested to maintain an appropriate and safe distance of 500m when passing the cable installation vessel whilst operational and should pass at the lowest possible speed to avoid vessel wash effects.

 

The vessel will be working throughout 24 hours and will display appropriate day shapes and lights during reduced visibility and night operations.

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Dogger Bank South Site Investigations

Fugro continue with geophysical site investigations on behalf of RWE Renewables within the proposed Dogger Bank South (DBS) Offshore Wind Farms array sites.

Geophysical Surveys

Geophysical survey operations on the Dogger Bank South array site continues with the Fugro Frontier until approximately the 31st October 2022. The Fugro Searcher has now completed their scope of works on the DBS array sites and has demobilised from the project.

 

The Fugro Frontier will be undertaking two single survey lines within the two additional areas to the north of DBS, as defined in the tie line tables.

 

As the Fugro Frontier will be towing survey equipment, vessels will require large turning circles and will be restricted in their ability to manoeuvre. All vessels operating within the array area are requested to keep their distance, maintaining at least the 1,000m safety zone around the survey vessel, and pass at minimum speed to reduce vessel wash.

 

Please note that completion dates for all survey vessels will be dependent on the prevailing weather conditions and work progress.

 

A continuous listening watch will be conducted on VHF Channel 16 by all survey vessels.

 

Survey operations will be conducted on a 24-hour basis.

 

Vessel Name Vessel Type Call Sign MMSI Number IMO
Fugro Frontier Array Geophysical Survey Vessel C6BH4 311000263 9723667

 

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Foinaven Buoyant Risers

The Foinaven FPSO has been removed from the field as part of a decommissioning project. Beneath the FPSO were 13 buoyant risers which remain in the water column. These contain buoyant sections which sit up to 160m above the seafloor within the 500m zone. These provide a significant snagging risk to any vessel operating in the area.

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Large drilling rig anchor

An large oil & gas industry drilling anchor has been noted at the following location during a Dive Support Vessel (DSV) campaign. This is significant in size and fishers should exercise extreme caution.

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Morven Windfarms Geotechnical Survey v01

The vessel Normand Mermaid will be undertaking Deep CPT operations at 150 locations throughout the Morven windfarm area. The work is estimated to take up to 8 weeks. The vessel Normand Mermaid will deploy a seabed frame through its moonpool at each location to collect the CPT data. The vessel will be stationary for up to 6 hours at each individual location at 150 separate locations. Marine users are requested to maintain the safe clearance distances of 500m throughout the deployment period.

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Morven Offshore Wind Farm Floating LiDAR and Metocean Survey

Metocean instrumentation and a floating LiDAR system (FLS) are planned for deployment within the boundary of the proposed Morven Offshore Wind Farm Project site in the North Sea. All instrumentation is planned for deployment within the Morven Project site in September 2022 until further notice.

All instrumentation is planned for deployment within the Morven Project site in September 2022. A total of 2 metocean instrumentation moorings and 1 underwater noise monitoring mooring and one FLS mooring are to be deployed at each of two deployment locations within the Project site (known as Morven North and Morven South).

 

The metocean moorings will comprise one directional waverider buoy (DWR) which will be visible on the water surface, moored to the seabed through a combination of rope and rubber cords. The second metocean mooring will be a subsurface ‘stumpy’ mooring which will not be visible at the water surface but will float approximately 5 m above the seabed. The FLS mooring will comprise a surface visible buoy moored to the seabed through a combination of rope and chain via a single point mooring.

 

Marine users are requested to maintain the safe clearance distances of 500m.

 

All equipment will be maintained in position via appropriate mooring systems and will gather metocean data to inform the proposed Project. Details of the surface present devices and relevant aids to navigation are provided in the attached NtM. 

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Chestnut Field Suction Pile Recovery

The Skandi Acergy will be undertaking the recovery of 12 suction pile anchors from the Chestnut Field in position 57° 58'36.83” N 001° 14' 21.21” E, UKCS Block 22/2A, this includes work within the 500m safety zone of isolated water injection well 22/2a-17 This work is due to commence on or around 1st October 2022 for a period of approximately 14 days. This work will involve subsea ROV and crane operations throughout.

The Skandi Acergy will be undertaking the recovery of 12 suction pile anchors  from the Chestnut Field, UKCS Block 22/2A, this includes work within the 500m safety zone of suspended isolated water injection well 22/2a-17.

 

This work is due to commence on or around 1st October 2022 for a period of approximately 14 days. This work will involve subsea ROV and crane operations throughout.

 

The Skandi Acergy will maintain a listening watch on VHF 16 throughout and passing vessels are requested to keep well clear.

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Scientific Survey - SW Lismore

Bottom mounted Acoustic Doppler Current Profiler (ADCP) deployment in a j-shaped mooring marked with a surface buoy.

Mariners are advised that Scottish Sea Farms intend to deploy scientific equipment at 56 28.259 N 05 35.380 W. A single bottom mounted ADCP rigged in a j-shaped mooring and marked with a surface buoy will be deployed by Ecospan Environmental using the vessel RV Coastal Surveyor, Call Sign 2DLF9. Work will commence Friday 23rd September 2022.  This mooring is expected to be in place until the end of January 2023. Enquiries should be directed to Rachel Speirs at surveys@scottishseafarms.com.

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Unexploded Ordnance

An Unexploded Ordnance (UXO) has been noted at the following location by a fishing vessel. This may pose hazard to fishing.

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Rig Move – Ensco 92 to Victor Field

Harbour Energy plan to move the Ensco 92 Jack-up drilling rig from Hartlepool to the Victor field location perform abandonment operations on the Victor JM 49/17-11 development well. Throughout well abandonment operations there will be a dedicated ERRV on location monitoring the surrounding sea area

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Export Cable Rock Placement

Rock placement activity will commence within the Seagreen Export cable corridor.

On behalf of Seagreen Wind Energy Ltd, Nexans A/S will commence rock placement operations within the Seagreen Export Cable corridor. The flexible fall pipe vessel "Rockpiper" will install rock berms on exposed sections of all three Seagreen Export cables. Three guard vessels are currently on location along the Export cable guarding exposed areas of cable.

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Anasuria Hibiscus UK Ltd - Teal West Field - Notification of Planned Survey Vessel Operations

Anasuria Hibiscus UK Ltd intend to conduct survey vessel activity on the Teal West Field in the UKCS. The GeoOcean III vessel will be mobilising to the field to conduct survey activities. The vessel is expected to mobilise to the field on 28/09/22.

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Dumbarton, Lochranza & Balloch Field Activities

Intervention operations using the Well Enhancer (WE) Light Well Intervention Vessel (LWIV). PFML intend to use the WE to analyse logging data and identify any opportunity to enhance production from the GP3 asset. Operations will commence around 3rd October 2022. The operations will last approximately 42 days.

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Plug and Abandonment Campaign - COSL Pioneer, Athena Field

Plug and Abandonment Campaign - COSL Pioneer, Athena Field. The COSL Pionner MODU  will be conducting a plug and abandonment campaign at the Athena field in block 14/18b. The MODU will be working at a standalone location in the Athena field on a six well campaign. The total duration of activities is expected to last approximately 90 days. The COSL Pioneer will have a 500m safety zone surrounding it, with anchors extending beyond the zone. 

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Foundation Installation Campaign - Dogger Bank A

The Offshore installation vessel, Innovation, has completed the first part of the installation campaign. Mobilising from 24/09/2022 the HLV Seaway Strashnov will install monopile foundations, within the Dogger Bank A construction area.

The works will re-commence on the 26th of September 2022, continuing until approximately Q3 2023 The works will be continuous 24 hours a day. Charts of the DBA construction area and foundation locations are provided.  A running list of the next locations to be installed and completed foundation locations will be presented in the Weekly Notice of Operations.

 

During operations, the HLV Seaway Strashnovwill be restricted in its ability to manoeuvre as defined under COLREGs (International Regulations for Preventing Collisions at Sea 1972) and will display the appropriate day shapes and lights. The vessel will also transmit an Automatic Identification System (AIS) message.

 

During operations, a Statutory Safety zone of 500m radius will be in place around the HLV Seaway Strashnov during the installation of foundations.  The safety zones will be monitored by a guard vessel. The primary response will be to warn passing traffic of the ongoing works and any active safety zones, and to alert any vessels where an infringement may occur or has occurred.

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Spirit Energy A-Fields and Ensign Field Decommissioning: Decommissioning operations

Spirit Energy has contracted the Deep Ocean-operated Normand Jarstein construction support vessel (CSV) to undertake subsea infrastructure decommissioning operations within the A-Fields, and the Ensign Field. The infrastructure formerly produced gas and condensate. The CSV is scheduled to mobilise in Peterhead on 29th September 2022.

The CSV will undertake pipeline protection (concrete mattresses), and pipeline removal operations at, and in the vicinity of, the Audrey A(WD) and Audrey B(XW) surface installations; at, and in the vicinity of, the Ann, Alison and Annabel subsea installations; and, at, and in the vicinity of, the Ensign surface installation. 

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Limited CPT and Vibrocorer Survey 2022 - West of Orkney

Mariners are advised that a survey vessel and equipment will be used within the N1 PO, and associated export cable corridor route options to Caithness. This Limited CPT and Vibrocorer survey work will be carried out by MMT using survey vessel Relume from 25 September 2022.

A summary of the works can be found below:

  • This survey shall take place from 25/09/2022 to 15/10/2022.
  • Contact details
  • Onshore: phone: +44 (0) 7926418820, email: OWPLFisheries@xodusgroup.com;
  • Offshore Fisheries Liaison Officer (FLO) (bridge number): +44 (0)203 7691458.
  • Name of vessel carrying out the work and towed equipment used: Relume
  • High Performance Vibrocorer (HPVC 3/6)
  • Core Penetrometer R100
  • Port of operation: Scrabster.
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Shaw and Montrose Site Surveys

Repsol Sinopec Resources UK Ltd intends to undertake two site surveys at Shaw and Montrose, UKCS Blocks 22/17n, 22/18n, 22/22a, 22/22c, and 22/23c, Central North Sea, acquiring both geophysical and environmental data. The survey operations are to be conducted using the MV Geo Ocean V survey vessel.

Acquisition will include: Singlebeam Echosounder, Multibeam Echosounder, Sidescan Sonar (dual frequency 100/400 kHz), Magnetometer, Sub-bottom Profiler, 2DUHR Seismic (10 cu.in mini-gun and 75 m multichannel streamer), and 2DHR Seismic (4 x 40 cu.in GI sleeve airgun array and 600 m multichannel streamer). Environmental sampling and camera work will also be carried out as part of the program.

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Metocean Equipment Deployments at 3 sites on the SSE Ossian Floating Offshore Wind Farm

Partrac Ltd. can confirm that an array of metocean equipment, including two floating LiDAR buoys, has been deployed at three sites within the SSE Ossian Floating Offshore Wind Farm off the East coast of Scotland. Please Maintain a 500 m exclusion around each position. The following equipment were deployed: + Floating LiDAR buoy at sites 1 and 3 + Guard buoy at site 2 + Datawell Waverider buoy at sites 1,2 and 3 + Subsea mooring at at sites 1,2 and 3

 

FLOATING LIDAR BUOY The floating LiDAR buoy deployed at sites 1 and 3 records meteorological data and are anchored to the seabed by means of a mooring chain and a ground weight. The buoy has dimensions of 4m x 4m, and when deployed the tallest mast on the buoy sits approx. 4m above the water line. The lantern will have a flash sequence Fl (5) Y 20s. Please maintain a 500m exclusion around each buoy.

 

WAVEBUOY

The wavebuoy deployed at each site is a 1.1 m diameter yellow spherical buoy fitted with a flashing antenna with sequence Fl (5) Y 20s.

 

GUARD BUOY

The guard buoy deployed at site 2 comprises a yellow St Andrews Cross, radar reflector, and yellow navigation light. The light will have a flash sequence Fl (5) Y 20s.

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Llyr Offshore Wind Farm Geophysical and Environmental Survey

A geophysical and environmental survey will be carried out between 21st September and 1st December. The geophysical survey will employ MBES, SSS, High-resolution Sub-Bottom Profiler and a single magnetometer. The environmental survey will acquire a drop down video footage and grab samples. All geophysical survey operations involve towed survey equipment (SSS, Magnetometer and SBP), and no equipment will be left on the seabed.

Please be advised that from the 21st of September 2022, N-SEA will be conducting a geophysical and environmental surveys within the area shown in paragraph 5. The survey consists of an offshore windfarm location, and its northern export cable route corridor. The geophysical survey will employ MBES, SSS, High-resolution Sub-Bottom Profiler, and a single magnetometer. The environmental survey will acquire drop down video footage and grab samples.

The geophysical and benthic survey works will be completed by N-Sea personnel on the survey vessel ‘Braveheart Spirit’. Full vessel details are presented in paragraph 6 below.

All environmental sampling will be executed by N-Sea subcontractor Ocean Ecology.

All geophysical survey operations involve towed survey equipment (SSS, Magnetometer and SBP), and no equipment will be left on the seabed. During geophysical and environmental surveys the vessel will be restricted in manoeuvrability and will require large turning circles. All vessel operating within this area are requested to keep a 500 m distance and pass at minimum speed to reduce vessel wash. The survey vessel will always be listening to Channel 16 but can set any other channel as required. Throughout survey operations, the vessel will be displaying the appropriate lights and shapes as required under COLREGS Rule 27(b).

All nearshore activities will be undertaken during daylight hours. All offshore activities will be undertaken on a 24 hour basis.

This notification is intended for circulation to all interested parties undertaking or managing activities in the vicinity of the planned survey works.  If you would like further details regarding the geophysical and/or environmental surveys, please contact the N-Sea project manager using the contact details at the bottom of this communication.

All mariners are reminded of their responsibilities under the International Collision Regulations and are reminded of Marine Notice No 17 of 2007 which gives general advice in relation to the activities of vessels engaged in survey work for hydrographic, seismic, fishing research and underwater operations.

Liaison and General Operational Principles

  1. We will ensure advance notice of survey works is provided to all marine users.
  2. As near-shore areas have the potential to hold higher densities of static fishing gear, where practicable geophysical and environmental survey operations within the near-shore area will be undertaken during daylight hours.
  3. Should areas of high fishing density be identified, best efforts will be made to modify survey plans (either the location of survey or timing of operations) to avoid damage to both survey and fishing gear.

 

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Irish Sea Pioneer at Douglas Accommodation

Irish Sea Pioneer will be at Douglas Accommodation providing accommodation support for shutdown activities.

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R100 Telecom Cable Installation

Global Marine will be conducting the installation of the R100 telecommunications cables on behalf of British Telecommunications plc between May and September 2022. Timings are dependent upon weather and other operational conditions. Works will utilise the C S Sovereign and Normand Clipper vessels.

 

The vessels will be limited in manoeuvrability therefore, vessels working in the area should proceed with caution within 1NM from the cable ship during operations and all activity should remain clear 250m either side of the vessel, 500m corridor in total.

 

For a further breakdown of operations, please don't hesitate to get in touch.

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Deployment of Sub-Surface Current Meters Notification – Loch Linnhe

Please be advised that from the 10th September 2022 an Acoustic Doppler Current Profiler (ADCP) and Recording Current Meter (RCM) will be deployed on the seabed for a period of 90 days within Loch Linnhe at a water depth of approximately 45m.

The ADCP will be mounted on a weighted frame on the seabed which will be anchored to the seabed using a combination of rope and chain.  From this anchor a second anchor will be run on a short length of chain.  This anchor will be attached to the surface via a buoy using leaded pot rope. The RCM meter will be suspended from the down rope at a depth of 4 metres. Their purpose is to collect sub-surface current data.

 

The works will be completed by personnel from Ecospan Environmental on the vessel ‘Coastal Surveyor’. Mariners are advised to navigate with caution in these areas whilst the vessel is in operation placing this ADCP, as well as during maintenance after 45 days and recovery after 90 days.

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Cambois Connection Benthic Survey

SSE Renewables will be undertaking a subtidal benthic survey of the Cambois Connection, an offshore export cable associated with Berwick Bank Wind Farm which runs from the Wind Farm to Blyth. The survey will be within two proposed export cable route options. During the survey campaign, a survey vessel will deploy underwater equipment in order to gather data on the ecology of the seabed. These include grab sampling and drop down video/camera work.

SSE Renewables (SSER) is developing the Berwick Bank Wind Farm and wish to further investigate and develop the area which includes the Cambois export cable route. As a part of this investigation, SSER are undertaking a benthic survey along the Cambois Connection export cable corridor which will aim to characterise the benthic environment to inform an Environmental Impact Assessment and Marine Licence application. The purpose of the benthic ecology survey is to map and characterise the distribution and extent of marine benthic biological communities and habitats within the Cambois Connection offshore export cable corridor using grab samples and drop down video/camera work. It should be noted that SSE Renewables are not requesting fishermen to relocate gear - on this occasion the vessels will work around any gear on location. 

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Rig - Maersk Invincible

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Nearshore Geophysical and Benthic Survey 2022

This survey shall take place from 17/08/2022 to 10/10/2022, Spectrum Nyquist to start on 17th of August and Spectrum 1 to start on the 9th of September.

Contact details onshore FLO: +44 (0) 7926418820, email: OWPLFisheries@xodusgroup.com and offshore Spectrum Nyquist: +44 (0) 7803031728 or +44 (0) 7367033380 Spectrum 1: +44 (0) 7538 565561

 

Name of vessel carrying out the work and towed equipment used: MV Spectrum1 (Geophysical and benthic and Spectrum NyQuist (geophysical)

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Galapagos Well Plug & Abandonment (211/27a-14) - North North Sea

Galapagos appraisal well decommissioning and removal. Block/quadrant - 211/27 (North North Sea)

As part of planned well decommissioning activities using the Olympic Challenger (Offshore Construction Vessel), and on behalf of Fraser Well Management (Well Operator) - the Galapagos appraisal well (211/27a-14) will be plugged and abandoned.

 

This work is scheduled between 25/09/22 and 31/10/22.

 

Olympic Challenger call sign - LAZQ7

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North Channel, Larne and Belfast Lough: Marine Survey Update, September-October 2022

Marine geophysical survey work will commence in the North Channel over the Moyle Interconnector Cable and the Scotland to Northern Ireland Pipeline in September 2022. The Larne Lough Crossing and Belfast Lough Crossing pipelines will also be surveyed.

Geophysical survey work is due to be carried out by two vessels (detailed below).  The vessels will survey the route of the Moyle Interconnector cables, the Scotland to Northern Ireland Pipeline (SNIP) in the North Channel between Northern Ireland and Scotland and also the route of the Larne Lough Crossing and Belfast Lough Crossing pipelines.

 

The survey work is due to start on 16th September and to be completed by 16th October.  It will be carried out by the vessels Noordhoek Pathfinder (North Channel waters deeper than 10m below LAT) and Deep Marker (North Channel inshore waters to a depth of 15m below LAT; and also Belfast Lough and Larne Lough crossings).  Details for each vessel are provided below.

  • Deep Marker: nearshore survey | MMSI 245079000 | Call sign PDXJ
  • Noordhoek Pathfinder: offshore survey | MMSI 245457000 | Call sign PBYN

The vessels will monitor VHF Channel 16 at all times and can be contacted on this channel.

 

All mariners are requested to maintain a safe distance (500m) from the survey vessels at all times.

 

Further details of the survey are provided in the Notice to Mariners.

 

Please contact Neil Johnston, who is the Moyle Cable project lead (neil.johnston@mutual-energy.com); or Ryan West, who is the SNIP project lead (ryan.west@mutual-energy.com) if you have any queries or concerns about this survey.

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Surveys - White Caterthun Area

Fugro Searcher (Call Sign: C6EI5) will be carrying geophysical survey work in the Culzean/Ailsa area defined by the Working Area locations noted below: During survey operations the Fugro Searcher will be towing a 1200m streamer and will have restricted manoeuvrability, please be aware. Start Date = around 14th September 2022. Duration expected to be approx. 25 Days to around 8th October 2022.

Fugro Searcher (Call Sign: C6EI5) will be carrying geophysical survey work in the Culzean/Ailsa area defined by the Working Area locations noted below:

During survey operations the Fugro Searcher will be towing a 1200m streamer and will have restricted manoeuvrability, please be aware.

Start Date = around 14th September 2022

Duration expected to be approx. 25 Days to around 8th October 2022.

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Jacky Field Decommissioning Subsea Structures

Items still on seabed prior to final decommissioning of field.

Items still on seabed prior to final decommissioning of field-

•    Rock berm covering conductor stump cement patio.

•    2 x pipeline ends protected with Rock Filter Units

•   1 x Power Cable End

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Open WHPS roof panels at the North West Bell field

The roof panels on the Wellhead Protection Structure (WHPS) at the North West Bell location are currently in an open position. The WHPS is within the existing 500m zone.

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Rig Move – Valaris 121 to Judy field

Chrysaor (a Harbour Energy company) plan to move the Valaris 121 Jack-up drilling rig from the Dunnottar field location to the Judy Riser Platform to perform drilling operations on the Judy 30/07a-RD development well. Throughout well operations there will be a dedicated ERRV on location monitoring the surrounding sea area.

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Lost SDC float

Ramform Atlas a seismic survey vessel has lost an SDC float, LOST SDC FLOAT it has markings on it PGS (291) is the name and number.if found contact the email address on here or TOTALENERGIES Aberdeen 

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Lost SDC Float (PGS 291) Yellow in Colour

Lost SDC float from the streamers. The SDC float is yellow in colour and has the markings and numbers of PGS (291) ON IT,If found please contact Total energies Aberdeen 

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Rig - Seajacks Kraken

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Sara 2D Survey

2D seismic survey by vessel "MV Kommandor" using sub-bottom profiler in blocks 3/15 and 3/20

2D seismic survey over the Sara area located in UKCS Blocks 3/15 and 3/20 in the Northern North Sea (NNS). The main survey area will be 86km2 and the greater work area will be 372km2.

 

Towed array will extend up to 1200m from the stern of the vessel

 

MMO and FLO will be onboard

 

Vessel: MV Kommandor

Call Sign: MCJ02

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Pre-Lay Anchor pattern COSL Pioneer in Athena Field

Please be advised that we will be placing moorings on the sea-bed within the Athena Field in preparation for the mooring of the Semi-submersible Rig COSL Pioneer. A guard vessel will be infield when the anchor handler leaves and the COSL Pioneer arrrives. 

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Areas of Exposure & Suspension - Carradale to Arran North Subsea Cable

Mariners should be aware that the Carradale to Arran North cable has areas of exposure and suspension.

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Carradale - Arran South Subsea Power Cable areas of exposure

Mariners should be aware that the Carradale - Arran South subsea power cable has areas of exposure and suspension.

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Carradale to Arran Power Cable Installation - HDD works and cable duct bell mouth

Please be advised that works relating to the installation of the replacement Carradale-Arran submarine electricity cable are ongoing.

As part of the cable replacement project a subsea duct has been installed from onshore north of Carradale  to a point ~260m from MHWS. The bell mouth duct end is exposed on the seabed and mariners should avoid  the working area within the red boundary as indicated below. 3 of concrete mattresses are located on the  HDD duct to the west of the bell mouth to stabilize this on the seabed.

 

Further works relating to the pre-lay survey, route clearance and subsea cable installation will  commence from 11th September and are covered by a separate notice to Mariners issued on 16th August 2022.  

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Pre-Lay Anchor pattern Well-Safe Guardian at Hannay H01 Well

Please be advised that Well-Safe Solutions, on behalf of Repsol Sinopec Resources UK propose to place moorings on the sea-bed at the Hannay Field from 25/01/22 in advance of the mooring of the Semi-submersible Rig Well-Safe Guardian.

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Helix Seawell at Trees Field Areas (Birch, Larch and Sycamore)

Helix Seawell at Trees Field Areas (Birch, Larch and Sycamore) to perform well suspension and pre-decommissioning activities.

Helix Seawell at Trees Field Areas (Birch, Larch and Sycamore) to perform well suspension and pre-decommissioning activities.  Mobilisation expected to be on or around 15th September 2022.  This date is subject to change.

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Dive Support Vessel - Seven Atlantic

The Dive Support Vessel - Seven Atlantic - will be conducting various pre-commissioning activities over the Saturn Banks Development Areas.

Subsea 7, on behalf of IOG, will be undertaking various pre-commissioning activities across the development from the vessel Seven Atlantic.  This work will involve the installation of spools at the Southwark Platform, the Tie-in point of the newly laid section of the Saturn Banks Export Pipeline (PL5152), and at the 24” Manifold location tying in to the Blythe pipeline.  The vessel will also be conducting pre-commissioning activities at the 24” Manifold location.

 

On completion of the installation and pre-commissioning activities the vessel will install a number of protection mattresses at all the locations.   

 

During the trip the vessel will also conduct some remediation work at the Blythe platform, within the 500m safety zone.

 

During the above operations, the vessel will be flying flag Alpha with restricted movement and at times unable to perform course changes or any form of manoeuvring.

 

The vessel shall either be static or moving at an maximum speed of <1 knot.  Vessel heading may not be indicative of direction of travel and operations will be conducted on a 24-hour basis.

 

It is requested that no marine activities occur within 500-metres of the 24’ Manifold location at the Thames Pipeline, and the Elgood to Blythe umbilical route during this operational period.

 

Vessels in transit are also requested to maintain a minimum distance of 500-metres when passing the vessel.

 

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Serenity SA-02 Operations

Drilling operations at the Serenity prospect using the Stena Don. PFML plan to drill the Serenity SA-02 well using the Stena Don semi-submersible drilling rig with operations starting around the 10th September. The operations should last approximately 30 days.

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Boulders Deposited within the Western approaches to the English Channel

It has been reported that on the 1st September 2022, the Greenpeace vessel 'Arctic Sunrise' has deposited 18 boulders at predetermined locations on the seabed. The boulders dimensions are approximately 50x50x100cm and weigh between 500kg - 1.4 tonnes each. Vessels within the vicinity are advised to exercise caution in the area.

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Current meter deployment – Sandsound Voe

Deployment of a current meter on the seabed within a 100m radius about the location given. The equipment is mounted in a frame on the seabed, connected via leaded groundline to an anchored surface buoy approximately 20m of the instrument.

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Floating LiDAR buoys & metocean buoys - CampionWind

Mariners are advised that from the 10 September 2022, for a period of 13 months, two Floating LiDAR buoys and one Seawatch Midi metocean buoy with an Acoustic Doppler Current Profiler (ADCP) seabed mooring will be deployed within the CampionWind offshore wind farm array. Please maintain a 400 m clearance from the deployed equipment. Deployments will be carried out over 3 days from 10 September 2022; weather permitting. Operations will be completed by the Fishing vessel ‘Elizabeth’.

From the 10 September 2022, for a period of 13 months, two Floating LiDAR buoys and one Seawatch Midi metocean buoy with an Acoustic Doppler Current Profiler (ADCP) seabed mooring will be deployed within the CampionWind offshore wind farm array to record wind and metocean data.

All locations referred to are outlined in Table 1 and displayed in Figure 1 within the Notice to Mariners (provided as an attachment to this notice). These locations are all within the CampionWind offshore wind farm off the east coast of Scotland.

 

The Seawatch Midi metocean buoy and the FLiDAR buoys are yellow in colour and will exhibit a navigation light according to IALA standards: five (5) flashes at one (1) Hertz, every twenty (20) seconds (Fl (5) Y 20s). The ranges for the lights on the buoys are 5 nautical miles for both Seawatch Midi and the FLiDAR Buoys. All vessels are requested to maintain a safe distance (400m) from the deployed equipment at all times.

 

Further details can be found within the attached Notice to Mariners.

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Morgan and Mona Offshore Wind Farm - Test Coil Obstruction

Seabed obstruction, approximately 1m high which was caused while retrieving a test coil from the seabed. The obstruction is scheduled to be made safe and monitored regularly.

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Floating LiDAR buoys & metocean buoys - Morgan & Mona

Metocean and floating LiDAR instrumentation have been successfully deployed within the Morgan and Mona project sites. As-laid coordinates have been updated.

Metocean instrumentation and floating LiDAR instrumentation have been deployed within the boundary of the proposed Morgan (North) and Mona (South) Offshore Wind Farm Project sites in the Irish Sea.

 

The metocean instrumentation within the Mona and Morgan Project site were deployed successfully in November 2021. It should be noted that instrumentation is deployed on the seabed some distance from the surface buoy, so marine users are requested to maintain the safe clearance distances as outlined in Section 3 below. Further details on the mooring design are available in Section 7. All metocean instrumentation will remain on location until planned recovery approximately November 2022. As-laid coordinates have been updated in Section 2 for the metocean equipment, following the service visit in August 2022.

 

The floating LiDAR instrumentation were successfully deployed at the Mona Project site and the Morgan project site in March 2022. It should be noted that instrumentation is deployed on the seabed some distance from the surface buoy, so marine users are requested to maintain the safe clearance distances as outlined in Section 3 below. Further details on the mooring design are available in the attached NtM.

 

The equipment will be maintained in position via appropriate mooring systems and will gather metocean data to inform the proposed Project. Details of the devices and relevant Aids to navigation are provided below.

.

All vessels are requested to maintain a safe distance (500m) from the maintenance vessels (Forth Jouster, Vital or Vector) at all times. All vessels are requested to maintain a safe distance (400m) from the deployed monitoring equipment at all times.

 

Further details can be found within the attached NtM.

 

Morgan

Name: Fugro Buoy WS188

MMSI: 992351368

 Mona

 Name: Fugro Buoy WS187

 MMSI:  992351369

 Morgan

 Name: Morgan 01

 MMSI: 992351367

 Mona

 Name: Mona 01

 MMSI:  992351366

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Sofia OWF - Nearshore Landfall HDD Works

Mariners are advised that landfall HDD operations are expected to commence within the nearshore area of the Sofia OWF export cable route on or around 9th September 2022 and are expected to last until 31st October 2022.

Sofia OWF HDD works will comprise of non-invasive multibeam survey (MBES), subsea excavation / trenching and diving operations.

 

The Forth Warrior and the Three Rivers shall be travelling daily to site from the Port of Hartlepool, with works being undertaken during daylight hours only (weather permitting). 

 

The ABEKO Server 1 (and accompanying tug, GPS Avenger) will be running 24hr OPS (weather permitting) and will be staying on site for the duration of their activities. Operations will comprise of the 30m/30m excavation within the below coordinates.

 

The Multicat Vessel “Forth Warrior” shall deploy a 4 Point Mooring arrangement which will remain on location throughout until 31st October 2022 and will comprise of the following components at each location:

 

Anchor Components and Type

Component Type
Anchor: 2t Delta Flipper Anchor c/w 54 metres of stud link chain remaining on the seabed.
Wire on anchor / leading to the surface can buoy: 18metres (36mm galvanised steel diameter).
Can Buoy: 205ltr drum (970mm length x 580mm diameter) Yellow in colour.
Light on Can Buoy: White light flashing Iso (equal) phase.
Pick up pendant on Can Buoy: 15metres (18mm Polypropylene Rope)

 

The above components shall be placed in the following coordinates and all vessels are to avoid all of the below anchor coordinates by a minimum 250m radius at all times.

 

Coordinates of Anchor Locations

 

Lattitude (DDM) Longitude (DDM)
54° 36.21399721' N 001° 00.96500683' W
54° 36.32825771' N 001° 00.79593573' W
54° 36.39242400' N 001° 00.92659705' W
54° 36.27734109' N 001° 01.11149999' W

 

The following project vessels shall be monitoring VHF 16 during the scope of the works and shall also be exhibiting the correct day shapes and flag for vessels engaged in diving operations.  They will be restricted in their ability to manoeuvre and at anchor.

 

Vessel Name Vessel Type Length (m) MMSI Number Call Sign
Forth Warrior 4 Point Mooring Multicat 27.70 235116011 2JHR8
Three Rivers Multibeam Survey Vessel 6.20m 235091048 2FGL2
Abeko Server 1 Backhoel Dredger 55.15m 245589000 PFSZ
GPS Avenger Tug 27.02m 235100957 2GVV2

 

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Floating LiDAR buoys & metocean buoys - MarramWind

Mariners are advised that from the 10 September 2022, for a period of 13 months, two Floating LiDAR buoys and one Seawatch Midi metocean buoy with an Acoustic Doppler Current Profiler (ADCP) seabed mooring will be deployed within the MarramWind offshore wind farm array. Please maintain a 400 m clearance from the deployed equipment. Deployments will be carried out over 3 days from 10 September 2022; weather permitting. Operations will be completed by the Fishing vessel ‘Elizabeth’.

From the 10 September 2022, for a period of 13 months, two Floating LiDAR buoys and one Seawatch Midi metocean buoy with an Acoustic Doppler Current Profiler (ADCP) seabed mooring will be deployed within the MarramWind offshore wind farm array to record wind and metocean data.

All locations referred to are outlined in Table 1 and displayed in Figure 1 within the Notice to Mariners (provided as an attachment to this notice). These locations are all within the MarramWind offshore wind farm off the east coast of Scotland.

 

The Seawatch Midi metocean buoy and the FLiDAR buoys are yellow in colour and will exhibit a navigation light according to IALA standards: five (5) flashes at one (1) Hertz, every twenty (20) seconds (Fl (5) Y 20s). The ranges for the lights on the buoys are 5 nautical miles for both Seawatch Midi and the FLiDAR Buoys. All vessels are requested to maintain a safe distance (400m) from the deployed equipment at all times.

 

Further details can be found within the attached Notice to Mariners.

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Seabed Activity Bluemull Sound (Shetland) – Subsea Tidal Array

The purpose of the operation is to conduct work on a subsea tidal energy array in the Bluemull Sound, Shetland.

A multicat vessel the Delta Marine Voe Jarl, call sign MSBB3 (or a similar vessel) will conduct offshore and subsea operations. Works will include loading and preparatory work at Cullivoe Pier and Belmont Pier. Operations could take place during the day or at night.   Operations will be conducted within the works area bounded by points A/B/C/D below (vessels should keep well clear e.g. 100m) and up to 50m either side of the cable corridor route; see waypoints below.

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Seabed instrumentation frame deployment - Yell Sound

A seabed instrumentation frame has been temporarily deployed in Yell Sound and will be recovered in a suitable weather / tidal window. The ballasted instrumentation frame weighs around 370kg, measures approximately 1.5m high x 1.5m wide x 1.5m long  and is connected to a 100kg clump weight via a 100m wire ground line.

The frame sits on the seabed in water of at least 35m depth, with no surface infrastructure such as buoys or markers. Vessels will be able to pass safely through the area and above the frame. Use of static or mobile benthic fishing gear in the immediate area should be avoided to avoid the risk of snagging.

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Ocean Endeavor Rig at Rockhopper

The Ocean Endeavor rig is moored at the Rockhopper well in the Penguins field for well operations.

The Ocean Endeavor rig is moored at the Rockhopper well in the Penguins field for well operations. 

 

The rig has 12 anchors including ground chain which extend ~1.5km from well centre and well outside the 500m zone. 

 

The anchors are connected to the rig with chain and fibre ropes, with the catenaries above the sea floor. 

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Seabed instrumentation frame deployments - South Stack Irish Sea

A seabed instrumentation frame with associated ground line and clump weight is deployed and will be recovered in a suitable weather / tidal window. The ballasted frame weighs around 370kg, measures approximately 1.5m x 1.5m x 1.5m and is connected to a 100kg clump weight and remotely actuated pop-up buoy via a 100m wire ground line. Note: two frames were deployed initially, but one of these has been recovered already.

Inside the Morlais demonstration zone the frame sits on the seabed in more than 30m of water, with no surface infrastructure such as buoys or markers. Vessels will be able to pass safely through the area and above the frames. Use of static or mobile benthic fishing gear in the immediate area should be avoided to avoid the risk of snagging.

 

The position listed here is as deployed.

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Notice to Mariners - Shetland HVDC Link (Ship to Ship Rock Transfer)

Rock placement is being undertaken by NKT, on behalf of Scottish Hydro Electric Transmission Plc, along the Shetland HVDC Link for Campaign 1 using the rock placement vessel Heimdal R. Due to the maximum load capacity of Heimdal R, transfer of rock is required to be undertaken by ship-to-ship transfer within Sinclair’s Bay, Caithness.

The rock placement being completed by Heimdal R along the Shetland HVDC Link Campaign 1 is expected to commence on the 13.09.22, with an estimated completion date of the 05.11.22. During this time coaster vessels, Hagland Carrier and Hagland Boss, will transport rock from Norway to Sinclair’s Bay to complete the ship-to-ship transfer of rock to Heimdal R. All ship-to-ship transfers will be completed in safe sea conditions and in high visibility.

 

A safe and suitable location, free from any potential hazards, within the pre-designated ship-to-ship transfer areas (see chart on the last page of the document) will be chosen on arrival of the coaster vessel within Sinclair’s Bay. Once a suitable location has been chosen, Heimdal R will confirm permission to moor alongside the coaster vessel safely and securely. The coaster vessel will then transfer the rock to Heimdal R using the excavator onboard.

 

Please be aware that during this operation, vessels, Hagland Carrier, Hagland Boss and Heimdal R, will be restricted in their ability to manoeuvre as defined under COLREGs (International Regulations for Preventing Collisions at Sea 1972). Masters of vessels are therefore requested to maintain their vessels at a minimum safe passing distance of 500 metres.

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Rig - Prospector 1

This oil & gas drilling rig has moved to this new position. Rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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New Marine Aggregate Licence Area 524

Please be aware of a new aggregate licence area within the outer Thames Estuary that will become operational in September 2022. Area 524 was issues with a favourable marine licence in October 2021. The applicant, DEME Building Materials Europe, will be taking the initial aggregate cargos from the area in September 2022. Other users of the area should be aware of the presence of an aggregate dredger that will have restricted maneuverability in the area.

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Animal tracking acoustic receivers (Cornwall south coast)

The University of Exeter with the Cornwall Inshore Fisheries & Conservation Authority have deployed animal tracking acoustic receivers along the south coast of Cornwall. The receivers are low profile and consist of a yellow sub-surface float with an integrated electronics package. The unit has an attached rope drum and floats just above the seabed. Each receiver has a ground line running approx. 100m from the unit. There are no surface markers associated with these devices.

The University of Exeter have deployed acoustic receivers along the ~50m depth contour of the south Cornwall coast. These receivers collect information on the movement and residency of electronically tagged Atlantic bluefin tuna. Other receiver networks have been deployed across the English and French Channel, including the Isles of Scilly, to detect these highly mobile species and other tagged fish species as part of the FISH-INTEL project.

 

The receivers are low profile (75cm height, 45cm width and <0.75sqm) and will be serviced several times each year. The receivers are retrieved by triggering (from the surface) the release of a recovery line from the unit. Receivers are moored to the seabed using rail chair clump weights. There is no permanent tether to the surface. Each receiver has a 100m ground line to provide a retrieval backup.

 

If a receiver is accidently recovered please retain and contact the University of Exeter (using point of contact).

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2022 SNS Decommissioning Campaign

DSV Boka Polaris will mobilise in Great Yarmouth on 04th September 22 to undertake a ~34 day offshore campaign to execute a Southern North Sea Decommissioning Campaign. CSV Boa Sub C mobilised on 1st August 22 to undertake a ~110 day offshore campaign to execute a Southern North Sea Decommissioning Campaign. The vessel will be working at various sites across the LOGGS and Viking areas. Upon completion of the offshore campaign, the vessel will demobilise to a North Sea port.

DSV Boka Polaris will mobilise in Great Yarmouth on 04th September 22 to undertake a ~34 day offshore campaign to execute a Southern North Sea Decommissioning Campaign. The vessel will be working at various sites across the LOGGS and Viking areas. Upon completion of the offshore campaign, the vessel will demobilise to a North Sea port.

 

CSV Boa Sub C mobilised in the Port of Sunderland on 1st August 22 to undertake a ~110 day offshore campaign to execute a Southern North Sea Decommissioning Campaign. The vessel will be working at various sites across the LOGGS and Viking areas. Upon completion of the offshore campaign, the vessel will demobilise to a North Sea port.

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2022 SNS Decommissioning Campaign

DSV Boka Polaris will mobilise in Great Yarmouth on 04th September 22 to undertake a ~34 day offshore campaign to execute a Southern North Sea Decommissioning Campaign. CSV Boa Sub C mobilised on 1st August 22 to undertake a ~110 day offshore campaign to execute a Southern North Sea Decommissioning Campaign. The vessel will be working at various sites across the LOGGS and Viking areas. Upon completion of the offshore campaign, the vessel will demobilise to a North Sea port.

DSV Boka Polaris will mobilise in Great Yarmouth on 04th September 22 to undertake a ~34 day offshore campaign to execute a Southern North Sea Decommissioning Campaign. The vessel will be working at various sites across the LOGGS and Viking areas. Upon completion of the offshore campaign, the vessel will demobilise to a North Sea port.

 

CSV Boa Sub C mobilised in the Port of Sunderland on 1st August 22 to undertake a ~110 day offshore campaign to execute a Southern North Sea Decommissioning Campaign. The vessel will be working at various sites across the LOGGS and Viking areas. Upon completion of the offshore campaign, the vessel will demobilise to a North Sea port.

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UK HDD Survey - Isle Of Grain

A survey of the Horizontal Directional Drill (HDD) route (nominally 800 m) for installation of the NeuConnect Interconnector will take place in the intertidal area of the Isle of Grain, Kent. NeuConnect is a new high voltage direct current (HVDC) electricity transmission interconnector between the Isle of Grain, Kent, mainland UK, and Wilhelmshaven, Germany, routed through UK territorial waters (TW) and exclusive economic zone (EEZ).

Nearshore Geophysical Survey will be performed by GEM in Predator vessel using towed equipment Survey Water Depth is from shoreline (+4.5 m) to 2.2 m LAT Survey is estimated to take place between 22nd August to 30th September 2022. Nearshore Geotechnical Survey will be surveyed by GEM in HAVEN SEAJACK 4 Platform Survey Water Depth is from shoreline (+4.5 m) to 2.2 m LAT.

Due to restricted manoeuvrability of vessels and equipment during the survey works other vessels are requested to maintain an appropriate and safe distance of at least 500 meters around the Predator vessel and HAVEN SEAJCK 4 Platform. The Predator vessel and the HAVEN SEAJACK 4 Platform are available for real-time notification through VHF radio channel 16.

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White Cross - Floating LiDAR system deployment

Please be advised that from the 09th of July 2022, one Floating LiDAR system is to be deployed to the Celtic sea to record wind and metocean data.

Please be advised that from the 09th of July 2022, one Floating LiDAR system is to be deployed to the Celtic sea to record wind and metocean dataPosition and coordinates where the FliDAR buoy will be deployed are provided in the table and charts below. The buoy will be deployed from Padstow harbour. The buoys will be in situ for 12 months (but up to 24 months).

 

The FLiDAR equipment will undergo regular scheduled maintenance during the operation period estimated to be 4 times a year, further notice to mariners will be issued confirming the dates and maintenance activities.

 

Following system checks onshore, the buoys will be either towed into position by a small works vessel or be deployed from a vessel through lifting of the buoys from the deck into the water. Key stages of the deployment are listed below:

1. unit delivered by road and assembled ashore;

2. unit, concrete sinker and mooring system loaded onto multipurpose vessel and taken to site;

3. concrete sinker and mooring system deployed from the vessel; and

4. unit deployed from the vessel and then attached to the mooring system.

 

Floating LiDAR Description

The floating lidar buoy is approximately 5m in length, 3m wide and 4.75m in height, with an anchor (dead man) weighing 2500kg. The system is comprised of the measurement buoy itself and a site-specific single catenary mooring.

 

Liaison and General Operational Principles

  1. The survey contractor will ensure advance notice of the installation works is provided to all marine users and the location of the buoy once installed is provided.
  2. Where considered appropriate, a Fisheries Liaison Officer will be used to provide advice during installation of the buoy and during the full deployment period of 12 months. Name: Rhys Kibble         Email:  rhys.kibble@brownmay.com          Telephone: +44 (0) 7809 337 349  

Programme

Deployment Date

From the 9th July up to 23rd July 2022 dependent on weather conditions

This date is subject to weather permitting, and therefore there may be the potential for an extension to the work duration.

Operational period

1 Year (up to 2 years from)

 

 

Safety

Lighting System

Colour: Yellow

Location: Top side of the FLS

Height of light above water: 3 metres

Flashing Intervals ODAS FI(5) 20s (range 5 nautical miles)

 

24 Hour Emergency Contact Numbers:

AKROCEAN

Mathieu DADEN +33 (0) 6 78 03 72 15

Control room VALEMO +33 (0)5 47 30 20 60

 

EMERGENCY

112 / 999 ask for the Coast Guard

VHF Channel 16

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Anchor Positions and Subsea Gravity Bases for COSL Innovator Rig at Golden Eagle Field (14/26)

Please be advised that anchor handling operations are complete at the CNOOC Golden Eagle location. This notice is to provide the as laid (actual) anchor locations. Note: the gravity base locations are inside of the anchor spread. This notice will remain live until the anchors are recovered. The COSL Innovator drilling rig will move into position to hook upto the anchors week commencing 29th August 2022. A separate notice will be raised to cover the rig move.

1. Anchor handling operations completed Tuesday 15th August 2022

2. Gravity bases positioning completed Saturday 20th August 2022

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Rig - Noble Sam Hartley

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Maersk Integrator

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Mooring and scientific equipment installed - Soay (Isle of Skye)

The Scottish Association for Marine Science will deploy 1 mooring which supports sound recording equipment and acoustic loggers that record echolocation clicks of porpoises, and vocalisations of minke whales. The mooring is subsurface and will extend to 5m below the surface (at low tide chart datum). There is no surface marker associated with this device. The recording equipment and moorings will remain at this location for 2 months and should be retrieved in October 2022.

The Scottish Association for Marine Science will deploy 1 mooring which supports sound recording equipment and acoustic loggers that record echolocation clicks of porpoises and vocalisations of minke whales. The mooring is subsurface and will extend to 5m below the surface (at low tide chart datum). There is no surface marker associated with this device. The recording equipment and moorings will remain at this location for 2 months and should be retrieved in October 2022. 

 

The intention of deploying the mooring is to collect acoustic information on the acoustic behaviour of harbour porpoises and minke whales in the area, to provide data to aid conservation.

 

If the mooring is accidentally recovered, please retain and contact The Scottish Association for Marine Science (using point of contact).

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Geophysical Site Investigation - Caledonia Offshore Windfarm

Caledonia Offshore Wind Farm has contracted Gardline Limited to carry out geophysical site investigations over the proposed Caledonia offshore wind farm site.

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Geophysical survey- North Sea, Norway

The vessel Northern Storm will perform geophysical survey in the Norwegian part of the North Sea. Please be advised that the vessel will have limited maneuverability. Towed- and hullmounted equipment will be used. The survey will be performed between 26th of May and the 30th of October 2022. The aim of the survey is depth mapping on behalf of Norwegian Hydrographic Service and Kartverket.

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Dogger Bank D Array Geophysical Survey Campaign

The offshore vessel, Guard Celena, will perform geophysical survey operations within Dogger Bank D (DBD) offshore wind farm array area.

The works will be performed in a single campaign, commencing on the 17th of August 2022 and continuing until approximately 30th November 2022. The works will be continuous, 24 hours a day. A figure of the DBD array area is provided below.

 

The operations consist of seabed geophysical survey by means of a towed side scan sonar and magnetometer.

 

During operations, the Guard Celena will be restricted in its ability to manoeuvre as defined under COLREGs (International Regulations for Preventing Collisions at Sea 1972) and will display the appropriate day shapes and night lights. The vessel will also transmit an Automatic Identification System (AIS) message.

 

It is requested that all vessels maintain a minimum of 500m safety separation distance from the Offshore Guard Celena and pass at reduced speed.

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Wet Stowed Export Cable

Export cable 3 has been wet stowed on the seabed in close proximity to the Seagreen offshore sub-station platform. On behalf of Seagreen Wind Energy Ltd, Nexans AS have wet stowed the end of export cable 3 on the seabed within the export cable corridor in the vicinity of the Seagreen offshore sub-station platform. The export cable installation vessel Nexans Aurora has laid down the cable at the coordinates shown below

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Notice to Mariners SHEPD ED1 Subsea Cable Installations

Please be advised that Briggs Marine Contractors (on behalf of SHEPD) shall be undertaking the following subsea cable installations: • Mull to Coll – Works commence from 5th September 2022 • Carradale to Arran – Works commence from 11th September 2022

Please be advised that Briggs Marine Contractors (on behalf of SHEPD) shall be undertaking the following subsea cable installations:

  • Mull to Coll – Works commence from 5th September 2022
  • Carradale to Arran – Works commence from 11th September 2022

 

Vessel Operations

The work utilises cable ship Elektron for boulder clearance, pUXO investigations and ROV operations along both routes. Kingdom of Fife will then carry out pre-lay grapnel runs, ahead of cable lay operations, along the specified routes. Elektron will return to site after completion of PLGR to execute the cable installations.

 

Landing craft Carly and Celtic Trader will be landing equipment at the shore ends of the cable routes with the exception of Carradale.

 

DSV Forth Drummer will be conducting diving operations within the cable corridor.

 

Elektron will be assisted at the shore ends by Celtic Guardian, Celtic Mara, Celtic Nomad and Celtic Voyager, regularly passing inside the working corridor for crew transfers and supporting nearshore cable landing operations.

 

Post lay surveys of the nearshore areas (<10m LAT) will be conducted in the period following installation but prior to cable burial. This will be conducted during daylight hours using a small unmanned survey vessel (USV) or RIB <10m long. This operation should take <1 day per landfall.

 

Cable lay activities are expected to continue over a period of 30 days, weather permitting.

 

As built surveys and burial by ROV jet trenching will follow on but will be covered by a separate NTM closer to the date of execution.

 

Work Description

During operations the vessels Elektron, Kingdom of Fife and Forth Drummer will be restricted in ability to manoeuvre. Whilst operations will seek to minimise disruption on the width of the main navigation channel, some disruption may be unavoidable during operations within the working corridor.  

 

Cable laying, boulder clearance, pUXO investigations and ROV operations may be conducted on a 24-hour basis.

 

Should any vessel wish to come within 500m of the vessels, then direct communication with the Master / Operator is required.

 

The vessels will display the appropriate lights / day shapes for their operations.

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Debris Survey - Hoton Platform

Perenco UK Limited is planning to sail from Grimsby on the 27th August 2022 to undertake a debris Survey at the Hoton platform using vessel N-Sea Geo Focus. The survey area is 1km by 1km box centered on the platform location within Block 48/07. The survey comprises of a geophysical survey using Multi-beam Echo Sounder, side scan sonar and passive magnetometer.

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East Irish Sea Decommissioning Campaign

DSV Boka Topaz is due to mobilise on 2nd September to undertake a ~34 day offshore campaign to execute an East Irish Sea Decommissioning Campaign. The vessel will be working at Millom East, Millom West, DPPA, Dalton and at open water wells Crossans and Darwen. Upon completion of the offshore campaign, the vessel will demobilise to a North Sea port. Additionally, the Seajacks Leviathan will be along side the Millom West platform for approximately 50 days from the 1st September.

DSV Boka Topaz is due to mobilise on 2nd September to undertake a ~34 day offshore campaign to execute an East Irish Sea Decommissioning Campaign. The vessel will be working at Millom East, Millom West, DPPA, Dalton and at open water wells Crossans and Darwen. Upon completion of the offshore campaign, the vessel will demobilise to a North Sea port. Additionally, the Seajacks Leviathan will be along side the Millom West platform for approximately 50 days from the 1st September. 

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Survey - Nearshore Pipeline Inspection PL20 & PL21 (Ref: 1397)

A 5 Day Nearshore Pipeline Inspection PL20 & PL21 using vessel Titan Discovery call sign: 2HCR3 between 12th May 2022 - 31st December 2022.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

ENI UK Limited

Bosakalis (TBC)

Titan Discovery

2HCR3

N/A

12/05/2022 - 31/12/2022

For 5 Days

48, 52

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Survey - Former Guinevere Platform 48/17-Post Decom (Ref: 1408)

A 28 Former Guinevere Platform 48/17-Post Decom using vessel Braveheart Spirit Call sign: PEJO between 7th August - 31st October 2022

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Perenco UK Limited

Braveheart Spirit

PEJO

N/A

07/08/2022 - 31/10/2022

For 28 Days

48

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Survey - Former Welland Platform 53/4a-Post Decom (Ref: 1407)

A 28 Day former Welland Platform 53/4a-Post Decom using vessel Braveheart call sign: PEJO between 7th August - 31st October 2022

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Perenco UK Limited

Braveheart Spirit

PEJO

N/A

07/08/2022 - 31/10/2022

For 28 Days

53

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Rig - Seafox 4

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Dogger Bank A,B&C UXO Inspection Campaign. Confirmed UXO Locations

UXO Inspection Operations within Dogger Bank A and Dogger Bank B Array construction areas have identified the presence of several confirmed UXO items.

These items will be addressed during a separate UXO Clearance phase of work estimated to be performed around October / November 2022. Until this subsequent campaign is performed it is requested that any vessel activities involving interaction with the seabed are kept to a minimum distance of 500m from the UXO items listed herein.   

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Survey - Former Tyne Platform 44/18A Post Decom (Ref: 1409)

A 28 Day Former Tyne Platform 44/18A Post Decom using vessel Braveheart Spirit call sign: PEJO between 7th August - 31st October 2022

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Perenco UK Limited

Braveheart Spirit

PEJO

N/A

07/08/2022 - 31/10/2022

For 28 Days

44

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Survey - Former Thames Platform 49/28-Post Decom (Ref: 1410)

A 28 Day Former Thames Platform 49/28-Post Decom using Vessel: Braveheart Spirit Call sign: PEJO between 7th August - 31st October 2022

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Perenco UK Limited

Braveheart Spirit

PEJO

N/A

07/08/2022 - 31/10/2022

For 28 Days

49

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Amended Fishing Restriction: Dredges Byelaw: NIFCA District

A person must not use a dredge for the exploitation of sea fisheries resources. A relevant fishing vessel transiting through the District must have all dredges onboard, lashed and stowed. Please contact NIFCA office for more details or visit the NIFCA website for full byelaw wording.

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Rig - Seafox 2

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Erda

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Maersk Resolute

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Maersk Intrepid

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Well-Safe Guardian

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Marigold and Sunflower Fields - Notification of Planned Survey Vessel Operations

Hibiscus Petroleum Berhad intend to conduct various vessel-based survey activities in the Marigold and Sunflower fields.

The survey vessel GeoOcean III intends to conduct a series of geophysical (MBES, hull-mounted SBES, SBP, SSS, magnetometer, and 2DHR), shallow geotechnical (borehole CPT and VC), environmental (benthic grabs and DDV), and inspection (ROV) surveys.

 

These surveys will take place at various locations within the Marigold and Sunflower fields, and between the Marigold field and the Piper Bravo platform. Details of relevant coordinates are included in this notice. 

 

 

The vessel is planned to mobilise around 19th August 2022. Survey activities are expected to be concluded by the end of October 2022.

 

For further details please contact:

 

John Fleming

HSE Manager

Anasuria Hibiscus UK Limited

john.fleming@hibiscuspetroleum.com 

 

 

 

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Wave Data Buoy Installation

A wave data buoy has been installed to assist foundation activity within the Seagreen Offshore Windfarm site. The wave data buoy will display the following characteristics - Fl(5)Y 20s 4M

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Subsea Clearance Project - Ex Northern Producer FPF 500m Zone

EnQuest Heather Ltd intends to undertake the seabed clearance works in the ex Northern Producer FPF 500m zone in relation to Dons Field decommissioning works commencing 01 April 2022.

The workscope comprises of several ROV Construction Support Vessels (CSV) performing the seabed clearance of the risers, Mid Water Arch, Riser Base Structure and surface laid spoolpieces, pipelines and umbilicals up to the point of burial.

 

Initially an ROV Construction Support Vessel (CSV) will perform the recovery of the concrete protection mattresses from over the surface laid spoolpieces, pipelines and umbilicals and will perform the cuts on these items up to their point of burial at full trench depth or start of rockdump. This will be followed by an Anchor Handling Tug (AHT) which will recover the Flexible risers and the surface sections of the flowlines and umbilicals before releasing the Mid Water Arch (MWA) and floating it to the surface. The MWA will then be towed to Lerwick in the Shetland Isles for disposal.

 

Finally another CSV will be in field to perform the recovery of the MWA clump weights, Riser Base Structure, rigid spoolpiece and pipeline sections along with any remaining concrete protection mattresses and grout bags. The 500m zone will then be surveyed for debris, the debris will be recovered and a final 500m zone MBES clearance survey will be performed to confirm the 500m zone is clear of any oil field related debris and that no snag hazards remain. An over trawl survey will then be performed by the SFF to confirm there are no snag hazards before issuing a seabed clearance certificate and opening up the area to fishing activity.

 

All the vessels will be positioned within the ex Northern Producer FPF 500m Zone during these activities with the AHT also towing the MWA to Lerwick along a predetermined tow route.

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NUI NavAid Installation - Brent Charlie

Commencing September 2022 - a new NUI (normally unmanned installation) NavAid system will be installed on the Brent Charlie Oil and Gas Installation. The system will be in operation from October 2022.

Brent Charlie is a manned production platform which served the Brent and Penguins reservoirs. The installation has now entered the Cessation of Production (CoP) phase and is due to down staff in late 2022. From October 2022 a NUI NavAid lighting system will be in operation, through to mid-2023. The specification of the system is as follows:-

 

Two off main white lanterns with a minimum range of 10NM to be mounted in the north-east and south-west corners of the platform. Both lanterns will be synchronised and exhibit flashing a Morse ‘U’ character every 15 seconds. A photocell shall be provided to ensure the lanterns operate within the required period of 15 minutes before sunset to sunrise and whenever visibility is below 2NM. Each lantern shall have a backup in case of failure of the main lantern. The main white lanterns shall have an IALA Category 1 availability factor (99.8%).

 

It is proposed that that the installation and subsequent commissioning of the new NUI NavAid lighting system will commence around the 2nd week of September 2022 and be completed by the 2nd week of October 2022. Once successful commissioning has been executed, it the existing lighting as detailed in the CtL permit (CL/110/6 V1) will be switched off permanently. This will effectively mean that only the NUI NavAid lighting will be in operation from October 2022 (install date) to the date of topsides lift (mid 2023). Should a fault occur with the new NUI  NavAid lighting system, the existing system will be reenergised until such time as the new NUI NavAid is repaired and is back in service. The current foghorn capability as detailed in CL/110/6 V1 will be retained until down staff in December 2022 (current date). Foghorns will be switched off at down staff (there will be no power generation capability available after down staff).  

 

Further notifications as required by CL/110/7 V2 will be submitted in due course.

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Judy oil export tie in spool at NORPIPE wye - pipe exposure

Judy oil export tie in spool at NORPIPE wye - pipe exposure over ca 50m creating additional trawl hazard. Rock was removed from Judy oil export tie in spool at NORPIPE wye in mid 2022 in support of valve changeout at NORPIPE wye. Valve changeout has been delayed until 2025 at which point rock will be reinstated. Absence of rock poses an increased risk of snagging fishing nets and also of pipeline damage. 

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Boulder next to Judy gas line

Boulder (2.4m x 2.5m x 1.5m) next to Judy gas pipeline. Boulder has been dragged next to the line by a fishing net. Fishing net is tangled around the boulder and associated trawl board is located nearby. Pipeline is marked on admiralty charts so should not be fished over. However, if it is there is a risk that another fishing net could become tangled around the boulder. This has potential to cause harm to the fishing net / boat and also pipeline.

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Deployment of ADCP Device - Berwick Bank Wind Farm

A Notice to Mariners (First Issue) for the deployment of a bottom mounted ADCP device recording metocean data at three locations within the proposed Berwick Bank Wind Farm array area. An associated guard buoy is currently deployed at each location. Expected arrival on site is mid-October 2021 with the works completed over three days; weather conditions permitting. We would like to extend the validity period from 12th October – 31st December 2021 to allow for any eventualities.

Mariners are advised that SSE Renewables will be deploying a bottom mounted ADCP device recording metocean data at three locations within the proposed Berwick Bank Wind Farm array area. An associated guard buoy is currently deployed at each location. All locations referred to are outlined in Table 1 and displayed Figure 1.

 

It is proposed that three stumpy moorings (M) and a near-bed frame (NB) will be installed on the sea bed within 175m to the three guard buoys which were installed during a previous wave buoy campaign. These locations are all within the Berwick Bank Wind Farm (BBWF) in the outer Firth of Forth on the east coast of Scotland. It should be noted that the near-bed frame will only be situated at one of these three sites at any one time.

 

The equipment will be deployed during October 2021, with an estimated start date for deployment set for the 14th October 2021. However, this may be subject to change due to weather and/or operational delays. The stumpy moorings will be deployed for 12 months with maintenance and monitoring completed at each three-month interval. The one near-bed frame will be deployed for three months at two sites and 6 months at one site, equating to a deployment duration of 12 months in total.

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Shetland HVDC Cable Lay Works Campaign 1

Scottish Hydro Electric Transmission Plc, are undertaking Campaign 1 of the Shetland HVDC Link cable installation. Campaign 1 begins at Noss Head, North of Wick and runs to until approximately KP155. The cable has successfully been laid on the seabed floor. The trenching vessel, Grand Canyon III, will be used to trench the cable to the required burial depth. For sections that cannot be trenched, rock placement will be undertaken. The rock placement works will be completed in two campaigns.

Planned Activities

 

The vessel, NKT Victoria, will be used to lay the cable on the seabed floor. Once the cable is laid on the seabed floor the vessel, Grand Canyon III, will be used to trench the cable to the required burial depth in the seabed. Any sections along the cable route that cannot be trenched, rock placement will be undertaken to achieve the required protection. The rock placement works will be completed in two campaigns. All works will be continuous, 24 hours a day.

 

Within the Noss Head Marine Protected Area the cable will be surface laid and protected by a cable protection system.

 

In the period between cable lay and cable burial, or protection by rock placement, the cable will be exposed on the seafloor. During this time the cable is sensitive to any external impact and constitutes a snagging risk for anchoring, fishing gear or other equipment with seabed intervention. For this reason, the cable corridor will remain closed for any fishing that interacts with the seabed, anchoring or use of other equipment with seabed intervention.

 

Please be aware that vessels NKT Victoria, Grand Canyon III and Grane R will be restricted in their ability to manoeuvre as defined under COLREGs (International Regulations for Preventing Collisions at Sea 1972). Masters of vessels are therefore requested to maintain their vessels at a minimum safe passing distance of 500 metres. NKT Victoria, Grand Canyon III and Grane R will display the appropriate shapes and lights in accordance with COLREGs Rules 16 and 18.

 

Co-ordinates of the cable corridor and charts of the working area are provided below. 

 

Guard Vessels

 

To protect the cable during installation activities Guard Vessels will be placed at approximately 15km intervals along the cable route. To provide the required coverage, approximately 7 guard vessels are expected to be utilised. The primary purpose of the Guard Vessels is to guard any unprotected cable along the cable route. The Guard Vessels will operate on a 24hr / 7 day per week basis. Any exchange of vessels shall be on site and coordinated so the unprotected cable is never unguarded.

 

It is requested that all vessels maintain a minimum of 500m safe distance from the installation vessels and pass at reduced speed. Fishing gear or other equipment with seabed intervention should not be deployed when approaching the cable corridor.

 

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Dropped Mattress - Southwark

During spool mattress installation by the EDT Hercules at the 24” Southwark pipeline export spools at the Southwark Platform an installation strop choked around a loop on the installed mattress. This was only apparent when the frame was recovered to surface (in the safe over boarding area 30m clear of any subsea asset) and the mattress was still attached. 1 x mattress (L=6 x W=3 x H=0.15) It is planned to recover the mattress in circa October 2022 during the Seven Atlantic diving campaign.

The mattress and the frame was returned subsea in the safe over boarding area and the bound up loop on the mattress was cut to deposit the mat on the seabed and releasing the frame to be recovered back to deck. Consideration has been given to safe recovery of the mattress using the infield vessel and onboard ROV. However, it has been concluded that this can be achieved more safely during the next planned diving campaign in October. An as left survey of the mattress was completed by HD54 WROV.

 

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HAEVA JUB at Ravenspurn North

Well operations on Ravenspurn North utilizing the HAEVA JUB

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Survey - Marigold & Sunflower (Ref: 1426)

A 30 Day Site Survey at Marigold & Sunflower using vessel Geo Ocean III call sign: LXGP between 01st August 2022 - 31st October 2022.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block
GEOxyz

Geo Ocean III

LXGP

1200m

3m

01/08/2022 - 31/10/2022

For 30 Days

15

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Drilling Activity - Valaris 122 at Orlov

The Valaris 122 (jack up drilling rig) will be conducting drilling operations at the Orlov field on the 22/08a-E Orlov well. The Valaris 122 will be drilling at a standalone location in the Orlov field on a single well campaign. The total duration of drilling and completion activities is expected to last approximately 108 days.

Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone. 

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Rig - Maersk Reacher

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Current meter deployment - Dury Voe

Deployment of a current meter on the seabed within a 100m radius about the location given. The equipment is mounted in a frame on the seabed, connected via leaded groundline to an anchored surface buoy approximately 75m NE of the instrument.

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Rig - Transocean Norge

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Dogger Bank A Export Cable Reduction to Charted Depth

During the campaign to lay and bury the Dogger Bank A export cable, it has been necessary to install rock berm protection over the cable in locations where it has not been possible to trench bury the cable

In the section of cable shown in Figure 1 of the attached NtM, the rock berm installation has been installed to a maximum height of approximately 0.6m above seabed level. In these locations, this represents a reduction in depth at Lowest Astronomical Tide (LAT) of approximately 5%.

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Hydrographic Survey - Maaey, Loch Uiskevagh

Mariners are advised that Bakkafrost Scotland (BFS) will be carrying out a Hydrographic survey in July in the vicinity of the Maaey fish farm, Loch Uiskevagh. The proposed works are planned to start on 13/07/2022 and will last approximately 100 days’, weather depending.

The deployment location will be marked by 1 yellow buoy, marked “survey”, and 1 orange buoy. Mariners are requested to navigate with caution in this area.

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Rig - Ocean Patriot

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Shetland HVDC - Clump Weights

Scottish Hydro Electric Transmission Plc, have carried out a pre-lay grapnel run (PLGR) and Route Clearance (RC) of Out of Service (OOS) Cable crossings along the Shetland HVDC Link. The works are now complete and items detailed have been deposited permanently on the sea bed.

The Shetland HVDC link is a critical electricity transmission link and will form part of the electrical transmission grid that is essential to the transport of renewable energy between the locations where it is generated and areas of demand, and the delivery of both Scotland’s and the United Kingdom’s 2030 climate change targets.

 

The OOS cables were removed along the route and, in accordance with International Cable Protection Committee procedures, all cable ends left on the seabed were weighed to seabed by the means of clump weights. The clump weights are concrete discs that are 0.5m diameter and 0.2m thick. A total of 10 clump weights have been deployed and remain at their location indefinitely. They do not pose a risk to mariners; this Notice is being distributed for information purposes only. 

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Rig - Paul B Loyd Junior

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Hazard - Boulder (T22-0938) North of Fulmar

During debris recovery, a large boulder was observed by the ROV. Boulder dimension 3.0m x.1.6m x 0.6m.

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Hydrographic Survey - Geasgill fish farm, Loch na Keal

Mariners are advised that Bakkafrost Scotland (BFS) will be carrying out a Hydrographic survey in July in the vicinity of the Geasgill fish farm, Loch na Keal. The proposed works are planned to start on 05/07/2022 using vessel MV Sophie Ann call sign:ZNPN8 and will last approximately 100 days’, weather depending.

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Hazard - Block (T22-0521) at Curlew D safety zone

During debris recovery, a large block was observed by the ROV. Large block with dimensions of 4.0m x 2.2m x 0.5m found in position 

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Survey - Leverett Field (Ref: 1422)

A 15 Day Site Survey at the Leverett Field using vessel Ocean Reliance call sign: HP6391 between 25th July 2022 - 30th October 2022.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block
Gardline

Ocean Reliance

HP6391

N/A

25/07/2022 - 30/10/2022

For 15 Days

21

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Rig - Valaris Norway

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Transocean Endurance

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Valaris 120

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending hundreds of metres outside this zone.

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New Safety Zone: Tolmount East Drill Centre, Tolmount East, Block 42/28d

A new safety zone has been granted by the Secretary of State for the above location/structure. For installations already on location the safety zone will come into force on 20th July 2022. Installation NOT Stationed at the time this order is made.

may also replace a safety zone in place around a platform, or other surface structure for the purposes of decommissioning.

 

Your FishSAFE Information will be updated in the next release v44

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New Safety Zone: Manifold M12, Foinaven, Block 204/24a

A new safety zone has been granted by the Secretary of State for the above location/structure. For installations already on location the safety zone will come into force on 20th July 2022. Installation Stationed at the time this order is made.

This safety zone may be new, or an amendment to an existing zone. It may also replace a safety zone in place around a platform, or other surface structure for the purposes of decommissioning.

 

Your FishSAFE Information will be updated in the next release v44

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Location of settlement trays for European Lobster settlement Index

HFIG working with NEIFCA, have secured funding to deploy settlement cages within the NEIFCA district. This notice contains information for settlement cages deployed south of Flamborough Head only. The metal cages consist of a square cage (61.0 x 91.5 x 15.0 cm), filled with cobble weighing approximately 100 kg. Each cage is marked with a surface marker buoy labelled with HFIG. There are four cages deployed approximately 200 m apart in each of the sites.

The metal cages consist of a square cage (61.0 x 91.5 x 15.0 cm), filled with cobble weighing approximately 100 kg, each cage is marked with a surface marker buoy labelled with HFIG. There are four cages deployed approximately 200 m apart in each of the sites, three of which will remain deployed for the summer season (until late September), the other will be hauled and processed approximately every 2 weeks. The RV Huntress will be conducting the deployment and recovery in the Holderness area. Care is to be taken around these location to ensure no snagging of the cages occurs leading to hazard to the vessel or disruption to the experiment.

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Survey - Dunlin Alpha (Ref: 1417)

A 30 Day Route Survey using the vessel Atlantis Dweller call sign: 8PAB3 between 8th July 2022 - 31st December 2022.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block
Fugro

Atlantis Dweller

8PAB3

N/A

19/07/2022 - 31/08/2022

For 30 Days

211

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Survey - Schooner 500m Zone & Schooner Pipeline (Ref: 1419)

A 10 Day Route Survey using the vessel Normand Superior call sign: LATJ7 between 27th June 2022 - 31st December 2022.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block
Ocean Infinity

Normand Superior

LATJ7

N/A

27/06/2022 - 31/12/2022

For 10 Days

44

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Survey - Ketch 500m Zone & Ketch Pipeline (Ref: 1418)

A 82.5 Day Route Survey using the vessel Normand Superior call sign: LATJ7 between 27th June 2022 - 31st December 2022.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block
Ocean Infinity

Normand Superior

LATJ7

N/A

27/06/2022 - 31/12/2022

For 82.5 Days

44

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Rig - Valaris Gorilla V

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Geophysical and Unexploded Ordnance Survey

Seaway 7 will conduct a geophysical/unexploded ordnance survey within the boundaries of the Seagreen Offshore Wind Farm. On behalf of Seagreen Wind Energy Ltd. Seaway 7 will commence a geophysical/unexploded ordnance survey on four spare asset locations within the boundary of the Seagreen site. The survey vessel Mersey Guardian is expected to arrive at site on or around the 25th of June to commence calibrations and survey operations.

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Acoustic Receiver Cannisters Deployed on Seabed - Gunna Sound

NatureScot, in collaboration with University of Exeter, have deployed 10 Acoustic Receiver Cannisters in the Sea of the Hebrides around Gunna Sound. The ARCs are low profile (35cm height and <0.75m2) and consist of 3x11 inch floats fixed to a delrin plate that holds the acoustic receiver floating ~1m above anchor (~70kg chain links). The ARCs will be serviced twice a year remotely from a vessel and completely removed at end of 3-5 years. There is no surface marker associated with these devices.

NatureScot, in collaboration with University of Exeter, have deployed 10 Acoustic Reciever Cannisters in the Sea of the Hebrides around the Gunna Sound area (as part of Marine Scotland Science Alba Na Mara June research cruise).

The intention of deploying the ARCs is to collect acoustic information on the movement and residency of tagged basking sharks with the Marine Protected Area, to provide data to aid conservation.

 

The ARCs are low profile (35cm height and <0.75m2) and consist of 3 x 11 inch floats fixed to a delrin plate that holds the acoustic receiver floating ~1m above anchor (~70kg chain links). The ARCs will be serviced twice a year remotely from a vessel and completely removed at end of 3 - 5 year (end date will depend on battery life of tags and when the tags are deployed). There is no mooring line associated with these devices, and are retrieved by triggering (at surface) a recovery line from ARC unit, so there is no tether to the surface.

 

If an ARC is accidently recovered please retain and contact NatureScot (using point of contact).

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Temporary marker buoy - Export cable ducts of the Dogger Bank A and Dogger Bank B export cables

This notice to mariners (NtM) relates to the location of a temporary marker buoy positioned between the export cable ducts of the DB A and DBB export cables

This revised notice to mariners (NtM) relates to the location of a temporary marker buoy positioned between the DBA and B export cable ducts.

 

The Nearshore works for DBA export cable have now been completed, with the cables and cable ducts now fully buried. The temporary marker buoy has now been moved back to a position between the DBA and DBB duct exit points. The buoy will remain in this position until the nearshore works for DBB commence in 2023.

On completion of all the nearshore works, estimated for end July 2023, the temporary marker buoy will be removed from site. This NtM supersedes LF500013-MIP-DOG-NOT005 Rev03, issued on the 19th December 2021

 

The marker buoy characteristics are: Yellow Special Mark, light pattern: Fl(Y)5s Mariners are reminded to navigate with caution, keeping a safe passing distance from the temporary marker buoy and keeping a continuous watch on VHF Ch. 70/16 when navigating the area.

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BP-7 wellhead and Xmas tree

BP-7 is a new subsea oil well. The wellhead supports a Xmas tree and integrated "fishing friendly" wellhead protection structure. BP-7 is a new subsea oil well. The wellhead supports a Xmas tree and integrated wellhead protection structure. The wellhead protection structure has legs that penetrate the seabed and a ‘fishing friendly’ profile with sloping sides designed to deflect trawls and offer protection against dropped objects

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Rig - Valaris Viking

This oil & gas drilling rig has moved to this new position. Rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Deepsea Stavanger

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Maersk Resilient

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Geotechnical Survey - Morgan and Mona Offshore Wind Farm

The offshore geotechnical survey of the proposed Morgan (North) and Mona (South) Offshore Wind Farm Project array areas will commence on the 14 June 2022 and 19 June 2022.

The offshore geotechnical survey of the proposed Morgan (North) and Mona (South) Offshore Wind Farm Project array areas will commence on the 14 June 2022. The investigation involves the drilling, sampling and coring of 30 boreholes throughout the two proposed areas, utilising the vessel Fugro Synergy. The vessel will be stationary at each borehole location for up to 3 days to allow the samples and cores to be taken from the seabed.

 

In addition to the above, further offshore geotechnical survey of the proposed Morgan (North) and Mona (South) Offshore Wind Farm Project array areas will commence on the 19 June 2022. The investigation involves acquiring up to 120 Cone Penetration Tests (CPTs) (deep push) throughout the two proposed areas, utilising the vessel Normand Mermaid. The vessel will be stationary at each CPT location for up to 6 hours to allow the samples to be taken from the seabed.

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New Fishing Restriction: The Canyons MCZ 2022

A person must not use bottom towed fishing gear or anchored nets or lines in the specified area. A vessel transiting through the specified area must have all bottom towed fishing gear and anchored nets or lines inboard, lashed and stowed. Permit conditions may apply. Fishing gear types are to be used as a guide only and fishers should refer to the specific legislation. Measures have been added to www.kingfisherRestrictions.org Please see the link below in the 'Full Notice'.

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New Fishing Restriction: South Dorset MCZ 2022

A person must not use bottom towed fishing gear in the specified area. A vessel transiting through the specified area must have all bottom towed fishing gear inboard, lashed and stowed. Permit conditions may apply. Fishing gear types are to be used as a guide only and fishers should refer to the specific legislation. Measures have been added to www.kingfisherRestrictions.org. Please see the link below in the 'Full Notice'.

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New Fishing Restriction: Dogger Bank SAC 2022

A person must not use bottom towed fishing gear in the specified area. A vessel transiting through the specified area must have all bottom towed fishing gear inboard, lashed and stowed. Permit conditions may apply. Fishing gear types are to be used as a guide only and fishers should refer to the specific legislation. Measures have been added to www.kingfisherRestrictions.org. Please see the link below in the 'Full Notice'.

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New Fishing Restriction: Inner Dowsing Race Bank and North Ridge SAC 2022 - Towed Gear

A person must not use bottom towed fishing gear in a specified area of reef or a specified area of sandbank.A vessel transiting through a specified area of reef or a specified area of sandbank must have all bottom towed fishing gear inboard, lashed and stowed. Permit conditions may apply.Fishing gear types are to be used as a guide only and fishers should refer to the specific legislation.Measures have been added to www.kingfisherRestrictions.org. Please see the link below in the 'Full Notice'.

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New Fishing Restriction: Inner Dowsing Race Bank and North Ridge SAC 2022 - Static Gear

A person must not use static fishing gear in a specified area of reef. A vessel transiting through a specified area of reef must have all static fishing gear inboard, lashed and stowed. Permit conditions may apply. Fishing gear types are to be used as a guide only and fishers should refer to the specific legislation. Measures have been added to www.kingfisherrestrictions.org. Please see the link below in the 'Full Notice'.

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Paul B. Loyd Jr (PBLJ) MODU on Site (Block 3/24c)

PBLJ on location to carry out exploration drilling. The PBLJ is expected to arrive at North Eigg (Block 3/24c -NE1) to carry out exploration drilling . The work scope is planned to take approximately 4 months. The MODU will be anchored utilising prelaid anchors.

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Anchor Pre Lay - N.Eigg

Pre-lay of anchors at North Eigg (24/3c) An anchor handling vessel will be mobilised to Block 24/3c to pre-lay anchors and anchor chains prior to the arrival of the drilling rig. Chain ends will be marked with anchor buoys. Once a the pre-lay activity is complete a Guard Vessel will be remain onsite until the arrival of the drilling rig. Schematic of anchor and anchor chain end buoy locations attached. 

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Rig - Swift 10

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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PrePARED Fish Tracking Array - Beatrice and Moray East Offshore Windfarms

Marine Scotland Science (MSS) intend to install 87 acoustic fish tracking moorings in the Beatrice and Moray East Offshore Windfarms areas (BOWL (38 moorings) and Moray East (49 moorings)) as part of the PrePARED programme of works. PrePARED is a collaborative research project coordinated by MSS which aims to concurrently study predator (seabird and marine mammal) and prey (fish) distribution and behaviour in and around offshore wind farms. Deployed: 10 April 2022. Removed: 30 August 2026.

Marine Scotland Science (MSS) intend to install 87 acoustic fish tracking moorings in the Beatrice and Moray East Offshore Windfarms areas (BOWL (38 moorings) and Moray East (49 moorings)) as part of the PrePARED programme of works. PrePARED is a collaborative research project coordinated by Marine Scotland Science which aims to concurrently study predator (seabird and marine mammal) and prey (fish) distribution and behaviour in and around offshore wind farms. The moorings hold research equipment that support hydrophone receivers. These receivers log the presence of fish, such as Cod, Haddock and Whiting which will be tagged with acoustic ID transmitter tag s (they will also record salmon and seatrout smolts migrating from Moray Firth Rivers tagged by the Atlantic Salmon Trust (AST) should they pass within range).

 

The moorings will be deployed from the 10th of April 2022 by a the Waterfall operated by Moray First Marine. The moorings will be removed by the 30th of August 2026.

 

Acoustic fish tracking moorings will not be surface marked and will be located on the seabed. The array moorings will extend vertically no more than 4 metres. The moorings will be serviced by boat, using the inbuilt acoustic recovery system. In the unlikely event of failure in the acoustic release system an ROV will be used from the same boat to service the mooring. Please note the acoustic fish tracking moorings are being deployed as close to the wind turbine generators as possible to minimise interference with fishing operations (50m), should these be accidently caught only the instruments are required to be returned and the location of the discarded weight should be supplied to MSS for recovery later.

 

Fish capture traps and timed-release cages (8 traps and cages in total) will be deployed in Moray East and Beatrice sites. These traps and cages will be used in the capture and managed release of fish needed for internal electronic tagging with acoustic ID transmitter tags. Traps and cages will be present at Moray East and Beatrice for up to 10 days commencing 13th of April. Traps and cages will move at 1 to 2-day intervals. All traps and cages will be marked with creel style floats and clearly marked “Marine Scotland Science” and be marked with an AIS beacon (visible as MARLAB 1 – MARLAB 8). Traps and cages will be at least 100 metres from turbine locations. Locations of traps and cages will be notified to the relevant windfarm Marine Control Centre as appropriate.

 

Contact details

 

All enquiries should be made to the Marine Scotland acoustics mailbox acoustics@scotland.gsi.gov.uk) marked for the attention of Robert Main. Switch Board Tel: 0131 244 2500

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Shallow Burial - Amitie Cable System

Alcatel Submarine Networks UK Ltd (ASN) was contracted to carry out construction activities for the AMITIÉ cable system. The AMITIÉ cable system spans nearly 6,600 km in total with the UK landing point in Widemouth Bay, near Bude, Cornwall. Shallow burial areas and short sections of surface laid/exposed cable in UK territorial waters. The areas of shallow burial and surface laid cable are due to hard ground or rock, where cable burial to the target depth was not possible.

The construction activities in the area shown were completed nearshore on 7th July 2021 using the vessel “Viking Energy”, and offshore on 24th August 2021 using the vessel “Ile de Brehat”. Post-lay inspection and burial (PLIB) works were completed on 29th November 2021 using the vessel “Ile d’Aix”.


This notice is issued to inform of as-laid shallow burial areas and short sections of surface laid/exposed cable in UK territorial waters. The areas of shallow burial and surface laid cable are due to hard ground or rock, where cable burial to the target depth was not possible. No further burial or protection works are planned for the AMITIÉ cable at this time.


It is requested that all vessels operating in this area keep their distance and avoid any works near the cable position. In view of the serious consequences resulting from damage to submarine cables, vessel operators should take special care when anchoring, fishing, mining, dredging, or engaging in underwater operations near areas where these cables may exist or have been reported to exist. In order to minimize the risk of such damage as much as possible, vessels should avoid any such activity at a minimum distance of 0.25 nautical mile, on either side of submarine cables.
 

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Drilling Operations - Central North Sea 22/11b

Capricorn are the license Holder for License P2379 in the Central North Sea, approximately 174km East of Aberdeen. On the 16th of May, we are planning to begin exploration drilling activities within UKCS block 22/11b (please see location map below). Drilling operations are planned to take 72 days (dry hole case) and 102 days (success case). However, permits have been requested until the 30th of November 2022 to account for any unforeseen delays.

Please also note that the start date of the 16th of May is subject to our drilling rig finishing its current operations as planned and this date may slip. 

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Rig - Safe Caledonia

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig Move - Deepsea Atlantic

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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New proposed Active Dredge Zone on area 473/1 and 473/2

The Active Area available to be dredged is being extended to allow the dredging companies to maximise their productivity at the site. The Active Area at Licence 473/1 and 473/2 is being extended to the limits of the licence area and extent of the 2020 surveys.

Details are presented within the attached doucment and on the charts shown with this notice.

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Wave data buoy - Clift Sound

Deployment of an AquaNode Wave Buoy, moored with a block on the seabed with a mooring swing radius of <200m about the location given. Colour: Bright Yellow Markings: High-visibility reflective tape, marked 'SURVEY' Dimensions: 75cm Ø x 39cm. Deployment Start 30 April 2022. Deployment End 31 October 2023.

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Survey - Finlaggen Site Survey (Ref: 1402)

A 8 Day Site Survey at Finlaggen using vessel Geo Ocean V call sign: LXGV between 27th May 2022 - 30th November 2022.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

GEOxyz Offshore

Geo Ocean V

LXGV

N/A

27/05/2022 - 30/11/2022

For 8 Days

21, 15

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Survey - Offshore Pipelines & wells (Ref: 1396)

A 31 Day Offshore Pipelines & Wells Survey using vessel Boka Atlantis call sign: V7SG3 between 12th May 2022 - 31st December 2022.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

ENI UK Limited

Bosakalis Subsea Services Ltd

Aberdeen (TBC)

Boka Atlantis

V7SG3

N/A

12/05/2022 - 31/12/2022

For 31 Days

48, 52

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Survey - Hewett Pipelines (Ref: 1398)

A 5 Day EBS & Habitat Assessment along Hewett Pipelines using vessel Boka Atlantis call sign: V7SG3 between 12th May 2022 - 31st December 2022.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

ENI UK Limited

Bosakalis (TBC)

Boka Atlantis

V7SG3

N/A

12/05/2022 - 31/12/2022

For 5 Days

48, 52

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Deployment of Buoys - Beryl SPM-3

Apache have installed to two cardinal buoys at the following locations. It would be appreciated to advise if any other stakeholder should be inform of the installation.

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Rig - West Phoenix

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Well Operations - Orlando 3/3b-13Y

PFML are due to conduct well intervention operations at the Orlando 3/3b-13Y well using the Island Innovator rig, pre-lay of 8 anchor mooring spread commencing 20th May 2022. Guard vessel is on location prior to the MODUs arrival in early June 2022 (provisionally 12-60 days post pre-lay operations). Stevpris MK VI anchor type and maximum of 2,680m of chain/fibre rope/wire per anchor.

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Dogger Bank A Boundary Buoy Installation - as installed locations

The Trinity House Buoy Installation Vessel, Galatea, has installed the Dogger Bank A boundary Demarcation Buoys in the Southern North Sea.

The 17 construction boundary demarcation buoys will remain in location until the windfarm construction activities have been completed and handed over to the Operations and Maintenance teams.

 

Once the permanent Aids to Navigation (AtoN) have been installed on the WTGs, Trinity House will approve the permanent AtoN and the boundary buoys will be removed.

 

If anyone finds a buoy that is off station or encounters a buoy location where it is not functioning or is missing, they should report this to the Dogger Bank Duty Marine Coordinator as soon as possible.

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Redeployment (Floating LiDAR Redeployment) - Valorous

The redeployment of the Floating LiDAR system within the proposed Valorous Floating Offshore Wind Farm project site, following recovery in January 2022, has been successfully undertaken.

Redeployment and Operation Floating LiDAR System

 

To inform the engineering designs and Environmental Impact Assessments (EIA) for the proposed Valorous Floating Offshore Wind Farm (FLOW), a Floating LiDAR and associated mooring system has been successfully redeployed within the boundary of the proposed Valorous Floating Offshore Wind Farm (FLOW) project site.

 

The Floating LiDAR is maintained in position via appropriate mooring systems. The Floating LiDAR will remain at the location listed below for a 11-month period. Details of the device and relevant Aids to Navigation are provided within the attached NtM.

 

All vessels are requested to always maintain a safe distance (100m) from the Floating LiDAR.

 

The Floating LiDAR equipment will undergo regular scheduled maintenance during the operation period, further notice to mariners will be issued confirming the dates and maintenance activities

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Rig - Deepsea Aberdeen

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Moorings and scientific equipment installed - Moray Firth

Mariners are advised that the University of Aberdeen has completed the installation / service & reinstallation of the moorings and equipment listed in the current notice. The recording equipment and moorings will remain at these locations for 6 months and should be retrieved in October 2022

The moorings support sound recording equipment, and / or acoustic loggers that record echolocation clicks of dolphins and porpoises. Where moorings are subsurface, they extend no more than 3 m vertically from the seabed. The recording equipment and moorings will remain at these locations for 6 months and should be retrieved in October 2022. 

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Uncharted Wreck - Fifeness to Montrose

Wreck observed outside of Lunan bay, south of Montrose. Wreck standing upright, slightly leaning to one side, measuring 41.5m in length, 7.2m in width and 6.5m in height at a depth of 19.3m. Matches description of wreck of armed trawler (ID 3044) positioned approximately 850m away, both in measured dimensions as well as bomb markings described in the middle parts of the wreck. In this case, the wreck is positioned far from its listed position in admiralty charts over the area.

Whether this is wreck 3044 or an uncharted wreck can however not be confirmed.

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Mooring and scientific equipment installed - Moray West offshore windfarm site

Mariners are advised that the University of Aberdeen has completed the installation of the moorings and equipment listed in the current notice. Moorings support sound recording equipment, and / or acoustic loggers that record echolocation clicks of dolphins and porpoises. Subsurface moorings extend no more than 3 m vertically from the seabed. The recording equipment and moorings will remain at these locations for 6 months and should be retrieved in October 2022.

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Rig - Maersk Resolve

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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ADCP deployments on the seabed - Skye and Summer Isles

Deployment of three scientific Acoustic Doppler Current Profilers on the sea bed for 12 months – no surface markers.

We will be deploying three scientific Acoustic Doppler Current Profilers on the sea bed for 12 months from May 2022 to collect currents data for environmental monitoring and hydrodynamic model validation.  The instruments have no surface markers and will be recovered using acoustic releases.  Two of the instruments will be inside low profile trawl-resistant frame (Little Minch, west of Skye, and Linn Crowlin, east of Skye) and one inside a steel frame (Summer Isles).  See attachment for photos of the frames, a chart with their position and their positional details.

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Wave data buoy - East of Shapinsay

Deployment of an AquaNode Wave Buoy deployed at a depth of 35m, moored with a block on the seabed with a mooring swing radius of <200m about the location given. Colour: Bright Yellow Markings: High-visibility reflective tape, marked 'SURVEY' Dimensions: 750mm Ø x 391mm. Deployment Start 13 April 2022. Deployment End October 2023.

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Guard Buoy Deployment - Berwick Bank OWF

Mariners are advised that a guard buoy associated with a bottom mounted ADCP device recording metocean data within the proposed Berwick Bank Wind Farm array area will be deployed.

This is part of a wider deployment of three guard buoys and associated equipment from October 2021. The guard buoy replaces one previously lost buoy in January 2022. It will be installed at the same location using the same methods. The Forth Warrior is the planned deployment vessel. A notification will also be provided on Kingfisher Information Services.

 

Expected arrival on site is 14th to 30th April 2022 with the works completed the same day where possible, weather conditions permitting. Therefore, we would like the validity period for this Notice to Mariners to be the 14th April 2022 – 31st October 2022 to allow for any eventualities during installation operations and to cover any ongoing O&M activities throughout the deployment period.

 

Please see the attachment pdf for further details. 

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Inter Array Cable Installation - Seagreen Site Boundary

On behalf of Seagreen Wind Energy Ltd, Seaway 7 will install and trench inter-array cabling between the wind turbine generator foundation structures and offshore sub-station platform within the Seagreen site boundary. Operations will commence with cable lay and trenching between wind turbine generator foundation structures, inter array cables will also be installed into the Offshore Substation Platform at a date to be confirmed. Two vessels will be involved in the operation.

Siem Stingray – This vessel will act as the Installation Support vessel, cable installation technicians will be deployed to the wind turbine generator foundation structures using the vessels’ motion compensated gangway system. The cable pulling equipment will be transferred onto the foundation structure and set up ready for the cables to be pulled into the structure and secured in the foundation basement. The motion compensated gangway system can be used for personnel and cargo transfers.

 

Seaway Phoenix – This vessel will lay the inter array cable between adjacent foundation structures. Once the cable has been pulled in and secured at the first foundation, the cable will be surface laid to the second foundation, pulled in and secured. On completion of this operation the cable will be trenched to a pre determined depth utilising a remotely operated trenching vehicle.

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Fishing Advisory Zone - Ninian North

Seabed snagging hazards following the removal of the Ninian North jacket in April 2022 and the removal of the automatic 500-metre Safety Zone.

Following removal of the jacket structure below sea level, there remain a significant number number of seabed structures & items that are potential snagging hazards, within approx. 200 metres of the jacket position. These include:

  • Jacket footings (to 46 metres above seabed)
  • SSIV structure
  • 12 impressed current anodes and associated cables
  • Umbilicals
  • Pipeline crossings, spans, exposed flanges/bolts
  • Pipeline repair clamps with exposed bolts.
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Noble Hans Duel Drilling Rig

The Drilling Rig Noble Hans Duel will be located next to the Southwark Platform for approximately 200 days from April 2022. The drilling rig Noble Hans Duel is locating to the south face of the Southwark Platform. The rig is expected to be on site in the region of 200 days.  It will be fully within the platform's 500m safety zone.

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Rig - Seafox 7

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Confirmation of Cardinal Buoys Deployment – at the Pickerill A Jacket

On the 29th March 2022, Leask Marine's C-Force completed its buoy deployment at 11:00 . The vessel Departed Pickerill A Field at 13:00 for transit to Great Yarmouth after the completion of work and arrived alongside at 20:00 the same day. This is a final notification to confirm the 4 cardinal buoys are in their final position and will remain in place until 30th June 2024 as per approval from ML/784/0.

Pickerill A former Platform Lat: 53° 32’ 57.0875” N Long: 01° 04’ 33.3425” E

 

The cardinal buoys will be deployed within the Pickerill 500 m zone at the following coordinates:

 

UPDATE: The latest version of the marine Licence accepts the 4 buoys final location is precisely as above.

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Completion of works - Moray East Offshore Transmission & Offshore Substation Platforms

The works associated with the Offshore Transmission (OfTI) and Offshore Substation Platforms (OSPs) were completed on the 13th January 2022. Overall care, custody and control of the works has been handed over to the Moray East Operations and Maintenance Team.  Please note, construction works associated with the Windfarm Infrastructure remain ongoing.  

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Survey - Diadem Exploration Well (Ref: 1353)

VSP will be used to characterise the Diadem exploration well which will involve the use of a seismic array from the drilling rig. will involve a three-gun array suspended from the rig (3 x 250 cubic inch guns). The VSP will be undertaken for 7 days on the 16" section, 13 days on the 12¼" section and 8 days on the 8½ section. The temporary 500 m exclusion zone of the drilling rig has been assumed as the working radius. Between 1st April 2022 and 30th November 2022.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

Capricorn Energy UK Limited

N/A

N/A

01/04/2022 - 30/11/2022

For 1 Day1

22

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Deployment of a SeaWatch LiDAR Buoy (SWLB) - Awel Y Mor Offshore Wind Farm

Awel Y Mor Offshore Wind Farm Limited are planning the Deployment of a SeaWatch LiDAR Buoy (SWLB); this is a sea state measurement instrument (referred to as ‘the equipment’). The deployment location is within the UK Sector off the North Wales coast at Liverpool Bay. The equipment will be deployed within the Awel Y Mor Offshore wind farm array limits and will be deployed for approximately twelve months from March 2022.

The equipment will be located as close as reasonably practicable to the coordinates as provided within this Notice to Mariners.

 

The buoy was successfully deployed the 26th of March and the coordinates for the as laid main anchor position is updated.

 

Scheduled maintenance is planned in the autumn/winter of 2022, from September onwards.

 

Unforeseen maintenance may also be required. The mooring design is specific to each SWLB deployment and location. The equipment will be moored through a combination of steel chains, rope and rubber cord to approximately 3000 kg anchor weight at the seabed.

 

The equipment is an integrated Seawatch Wavescan buoy and ZX 300M LiDAR; the purpose of the equipment is to collect oceanographic and meteorological data using a single platform. The equipment is supplied and charged by an onboard power system which uses methanol fuel cells and solar panels to recharge onboard lead acid batteries.  

In order to minimise the risk to other sea users, the measures listed below will be adopted for this deployment:

 

The equipment will be equipped with a F1 (5) Y 20s light with 4-5 nautical mile range; the light will be mounted at the top of one of the masts, approximately 4 m above sea level.  

 

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Construction of Wind Farm - Neart na Gaoithe Offshore Wind Farm Limited

Neart na Gaoithe Offshore Wind Farm Limited (NnGOWL) will commence construction work for Neart na Gaoithe (NnG) Offshore Wind Farm, from the 9th August 2020, with the start of casing and pile installation operations on the wind farm site.

NnGOWL is developing the NnG Offshore Wind Farm, jointly owned by EDF Renewables and ESB, which is located in the outer Firth of Forth, Scotland. The NnG wind farm area is 15 km east off Fife Ness and 29 km from the East Lothian coastline and covers an area of 105 km2

The wind farm consists of 54 no. wind turbines (WTGs) and 2 no. Offshore Substation Platforms (OSPs), with a total capacity of approximately 45 0MW. Water depths across the offshore wind farm area generally range from 40 to 60 m below LAT. The generated power will be transmitted to the grid via two subsea export cable circuits which will reach landfall at Thorntonloch Beach, East Lothian, Scotland. Specific details and location of activities within the Wind Farm Area and Export Cable Corridor will be provided via subsequent notices as work progresses.

 

Buoyage

 

Five special markers are now in position:

 

Name Location

SP 1 - Special Mark - Fl Y 5s light character

56°18.180'N 02°12.075'W

SP 2 - Special Mark - Fl Y 5s light character

56°15.643'N 02°09.329'W

SP 3 - Special Mark - Fl Y 5s light character

56°12.294'N 02°15.796'W

SP 4 - Special Mark - Fl Y 5s light character

56°14.038'N 02°18.975'W

SP 5 - Special Mark - Fl Y 5s light character

56°18.924'N 02°18.951'W

 

Four cardinal buoys are due to be deployed the week commencing 16th March. Planned deployment locations

 

Name Location

NNG - North Cardinal - Quick (Q) white light character

56°20.425'N 02°14.617'W

NNG - East Cardinal - Q (3) 10 s white light character

56°14.329'N 02°08.558'W

NNG - South Cardinal - Q (6) + Long (L) FL 15 s white light character

56°12.294'N 02°09.760'W

NNG - West Cardinal - Q (9) 15 s white light character

56°17.057'N 02°21.084'W

 

A steel chain will be connected to each marker buoy, and the chain will be present through the water column, connected to an anchor placed on the seabed.

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Seagreen Offshore Wind Farm – Maintenance of Acoustic Monitoring Devices

Maintenance works will be undertaken on the five acoustic monitoring devices located in and around the Seagreen Offshore Wind Farm site.

Mariners are advised that maintenance works on the five acoustic monitoring devices in an around the boundaries of the Seagreen Offshore Wind Farm will be undertaken. The Marine Scotland Science vessel Alba na Mara plans to service the 3 monitors outside the site boundary this evening 14th of March. The 2 monitors inside the site boundary will be serviced tomorrow, 15th March. These acoustic monitoring devices collect real-time noise measurements for a period of 36 months. The devices will be inspected and maintained at least every four months.

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Seagreen Offshore Wind Farm –Installation & Commissioning of Wind Turbine Generators

Installation of wind turbine generators (WTG) will commence within the boundaries of the Seagreen offshore wind farm.

On behalf of Seagreen Wind Energy Ltd, MHI VestasOffshore Wind will commence the installation and commissioning of 114 wind turbine generators.There shall be four vessels utilised during thisoperation.The Jack up Vessel Wind Orca will be the main installation vessel. Wind Orca will transport the WTG components to site, jack up to the required height next to the foundation structure and install the WTG components.The Service Operation Vessel (SOV)Acta Centaurus will provide accommodation for the WTG commissioning technicians. Personnel will utilise the Acta Centaurus’s walk to work gangway system to access the WTG structures for commissioning activities.Two Crew Transfer Vessels(CTV’s), HST Euan and the HST Harri will support the above two vessels during installation and commissioning activities.The above vessels are expected to arrive at the Seagreen site on or around the 5thof December, WTG installation activities shall continue until late 2022.

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Survey - Goldeneye Seabed Clearance Survey (Ref: 1344)

A 0.5 Day Seabed Clearance Survey at the Goldeneye using the vessel Edda Flora call sign: LAJW3 between 01st February 2022 - 31st December 2022.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

DeepOcean AS

Edda Flora

LAJW3

N/A

01/02/2022 - 31/12/2022

For 0.5 Day

14

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Possible Hazards (initial ‘trawl sweep’ findings)

The Moray East Over Trawl Survey (Export Cable Trawl Sweep) was undertaken by the MV Sardonyx between the 1/9/2021 and the 5/9/2021. The work was undertaken using appropriate gear types for the locations outlined below, with the crossings being undertaken successfully. At Section 1, at crossing position 57°41.962'N 002°33.078'W, the gear encountered a peak tension and a reduction in gear spread.

At this location, the export cables are buried to the required depth and the trawl gear did not pass over any rock protection or any known boulders, as such the cause of the peak tension is unknown. This will be investigated by the project at the earliest available opportunity.

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Rig - Valaris 72

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Noble Lloyd Noble

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Rowan Stavanger

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - 590021

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Rig - Valaris Gorilla VI

This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Survey - Curlew Pipeline and Seabed Clearance Survey (Ref: 1335)

A 5 Day Clearance survey at Curlew B,C,D and pipeline and umbilical routes using the vessel Edda Flora call sign: LAJW3 between 01st February 2022 - 31st December 2022.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

DeepOcean AS

Edda Flora

LAJW3

N/A

01/02/2022 - 31/12/2022

For 5 Days

29

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Survey - Kingfisher PL & Umbilical Seabed Clearance Survey (Ref: 1340)

A 2 Day Clearance survey at Kingfisher PL & Umbilical using the vessel Edda Flora call sign: LAJW3 between 01st February 2022 - 31st December 2022.

Company Vessels

Towed Cable

Length & Depth

Duration Survey Block

DeepOcean AS

Edda Flora

LAJW3

N/A

01/02/2022 - 31/12/2022

For 2 Days

16

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Rig Move - Maersk Inspirer

Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.

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Deployment of Spherical Directional Waverider Buoy - Northern North Sea

Shell deployed a new wave buoy in the Northern North Sea on 05-October-2021. Colour: Yellow, Size: 0.9 diameter, Fl: 5 10s

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Anchor Listing for Safe Caledonia at Elgin PUQ

The Flotel Safe Caledonia is alongside ELGIN PUQ – within 500m zone. Providing additional accommodation for ongoing fabric maintenance campaign. Anchor Location Listing

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Safe Caledonia at Elgin PUQ

The Flotel Safe Caledonia is alongside ELGIN PUQ – within 500m zone. Providing additional accommodation for ongoing fabric maintenance campaign. Duration extended to over Winter at site and recommence work in Spring 2022 to Oct 2022

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Deployment of Floating LiDAR Buoy - Berwick Bank Wind Farm

Mariners are advised that SSE Renewables will be deploying a floating LiDAR Buoy within the proposed Berwick Bank Wind Farm array area.

The LiDAR buoy will measure the wind conditions to provide valuable meteorological data to the offshore community that is needed for offshore wind resource characterisation

 

All locations referred to are outlined in Table 1 and displayed Figure 1 within the Notice to Mariners (provided as an attachment to this notice). These locations are all within the Berwick Bank Wind Farm (BBWF) in the outer Firth of Forth on the east coast of Scotland.

 

Expected arrival on site is 5th to 22nd November 2021 with the works completed the same day, weather conditions permitting. Therefore, we would like the validity period for this Notice to Mariners to be the 01 November 2021 – 30 November 2022 to allow for any eventualities during installation operations and also to cover any ongoing O&M activities throughout the deployment period.

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Seagreen Offshore Windfarm - Foundation Grout Installation

Grout will be installed in the Wind Turbine Generator foundation suction caisson voids within the Seagreen site boundary

On behalf of Seagreen Wind Energy Ltd, Seaway 7 will install grout to the Wind Turbine Generator foundation suction caisson voids within the Seagreen Site Boundary. The vessel EDT Hercules will transport the grouting mix to site and set up at the requisite foundation location. A grout hose will be connected to the suction caisson with the grouting mixture being injected into the caisson void. A remotely operated vehicle (ROV) will also be utilised in this operation.

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Carradale - Arran North and South Subsea Cables Charting Errors

The charted locations of the Carradale to Arran subsea electricity cables in the Kilbrannan Sound may be inaccurate and are being reviewed. Any corrections required will be issued as soon as possible. Mariners should be aware that the true cable locations may be up to ~300m from the presently charted positions. The location of this hazard notice is not indicative of any true cable location and is for information only.

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Fishing Hazard - Dons Fields Decommissioning Works

The Northern Producer FPF has been removed from it’s moorings and towed to port for decommissioning but the subsea assets within the Northern Producer FPF 500m zone will remain in place on the seabed and could pose a snag hazard to fishermen

The Northern Producer FPF has been removed from it’s moorings and towed to port for decommissioning but the subsea assets within the Northern Producer FPF 500m zone will remain in place on the seabed and could pose a snag hazard to fishermen therefore the Thistle Alpha Platform ERRV will act as a guard vessel until the 500m zone clearance is performed in 2022.

 

This includes the 8 No Risers draped over the Mid Water Arch (MWA), the MWA Clumpweight Guide Frame, the Riser Base Structure (RBS) and the surface laid pipelines / Umbilicals.  The MWA will remain in the water column at a depth of 112m and will remain tethered to the seabed via the clumpweight guide frame. The risers will remain draped over the MWA with one end on the seabed and the other end will remain connected to the RBS so that they remain stable. The existing stabilisation mattresses will remain in place over the surface laid pipelines/umbilicals.

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Seagreen Offshore Wind Farm - Scour Protection Installation

Subsea Scour Protection rock installation will commence on the Seagreen Offshore Windfarm foundation structures within the site boundary.

On behalf of Seagreen Wind Energy Ltd, Seaway 7 will install seabed scour protection rock to the foundation structures within the site boundary. The Flexible Fall Pipe Vessel (FFPV) Bravenes will transport and install the rock on the seabed using its flexible fall pipe system. This allows the scour protection to be installed with a high degree of accuracy. An ROV at the end of the fall pipe will be utilised to control the flow of rock to the seabed.

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Seagreen Offshore Windfarm - Deployment of a Guard Vessel

Due to construction activity commencing within the Seagreen development site a guard vessel will be deployed.

In conjunction with the commencement of wind turbine generator foundation installation activities, Seaway 7 will deploy a site Guard Vessel on behalf of Seagreen Wind Energy Ltd. The vessel will be deployed on or around the 01st October and will make six hourly VHF radio broadcasts containing information regarding the Seagreen development, including installation activity, safety zone information and site demarcation buoyage information. The first guard vessel to arrive will be the Renown FR246.

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Application for Offshore Development Area - Seagull Umbilical

Neptune E&P UK Ltd would like to request to establish an additional offshore development area in Block 22/29C for the Seagull Umbilical location.

The Seagull Field is located on UK licence P1622 Block 22/29C. 17km south of the Eastern Trough area Project (ETAP) Central Production Facility (CPF). Neptune will develop the Seagull reservoir as a subsea tie‐back to existing seabed infrastructure over the BP operated ETAP CPF. The development is high pressure and high temperature and Neptune is the Operator for the subsea development. Neptune will also drill and complete the Seagull Wells and shall retain overall Project responsibility.

The Seagull development will require installation of new subsea equipment as follows: Four Xmas Trees; a 4 slot manifold; a 17km control umbilical (including hydraulic, electrical and chemical supplies) direct from ETAP to Seagull; a 5km 10” production pipeline; a 5km 3.5” wash water pipeline from Seagull to the existing Egret manifold; and a Wye manifold adjacent to the existing Egret manifold, through which the new Seagull production pipeline will connect with the Heron cluster pipeline system connected back to the ETAP CPF. From ETAP CPF Seagull oil and gas will be exported to shore through the GAEL and FPS pipeline systems to the Kinneil Terminal onshore.

 

We already have an ODA established covering the Seagull drill centre and the Egret manifold and would like to request to extend the ODA to incorporate the entire Seagull works area. The extended Offshore development area will be required commencing from September 2021 ‐ March 2023.

 

 

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Pipeline Span - Dunbar to Alwyn: PL1043

Significant free-spans have been identified along the PL1043 Dunbar to Alwyn pipeline

Significant free-spans have been identified along the PL1043 Dunbar to Alwyn pipeline : Please exercise caution in these areas

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Plugged and Abandoned Well : Sween

Sween UKCS 3/30 : Abandoned Wellhead (3/30-7)

No overtrawlability trial done yet, rough ground may be experienced.

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Plugged and Abandoned Well : Balvenie

Balvenie UKCS 3/14: Abandoned Wellhead (3/14d-18)

No overtrawlability trial done yet, rough ground may be experienced.

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