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All Subsea Cables Renewable Energy Safety News Downloads

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Media Gallery

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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.org 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

ALL PLOTTERS (Fishing Plotter File)

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Litton FishMaster (Fishing Plotter File) download

Litton FishMaster (Fishing Plotter File)

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Maxsea (Fishing Plotter File) download

Maxsea (Fishing Plotter File)

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Olex (Fishing Plotter File) download

Olex (Fishing Plotter File)

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Penta (Fishing Plotter File) download

Penta (Fishing Plotter File)

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SIS MicroPlot (Fishing Plotter File) download

SIS MicroPlot (Fishing Plotter File)

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Sodena (Fishing Plotter File) download

Sodena (Fishing Plotter File)

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TM Planner / Quodfish (Fishing Plotter File) download

TM Planner / Quodfish (Fishing Plotter File)

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TRAX (Fishing Plotter File) download

TRAX (Fishing Plotter File)

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Transas Navifisher (Fishing Plotter File) download

Transas Navifisher (Fishing Plotter File)

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Kingfisher Regional - North Sea North and West 2022 download

Kingfisher Regional - North Sea North and West 2022

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Kingfisher Regional - North Sea Central 2022 download

Kingfisher Regional - North Sea Central 2022

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Kingfisher Regional - North Sea South 2022 download

Kingfisher Regional - North Sea South 2022

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Kingfisher Regional - English Channel 2022 download

Kingfisher Regional - English Channel 2022

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Kingfisher Regional - South West Approaches 2022 download

Kingfisher Regional - South West Approaches 2022

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Kingfisher Regional - Baltic North 2022 download

Kingfisher Regional - Baltic North 2022

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Kingfisher Regional - Baltic South 2022 download

Kingfisher Regional - Baltic South 2022

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Beatrice 2022 download

Beatrice 2022

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Kingfisher Regional - Irish Sea 2022 download

Kingfisher Regional - Irish Sea 2022

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Hornsea 2 2022 download

Hornsea 2 2022

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Borselle 1+2 2022 download

Borselle 1+2 2022

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Moray East 2022 download

Moray East 2022

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Hywind 2022 download

Hywind 2022

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Kincardine 2022 download

Kincardine 2022

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Blyth Demonstrator Project 2022 download

Blyth Demonstrator Project 2022

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Teesside 2022 download

Teesside 2022

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Hornsea Project One 2022 download

Hornsea Project One 2022

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Westermost Rough 2 download

Westermost Rough 2

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Humber Gateway 2022 download

Humber Gateway 2022

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Triton Knoll 2022 download

Triton Knoll 2022

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Race Bank 2022 download

Race Bank 2022

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Sheringham Shoal 2022 download

Sheringham Shoal 2022

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Dudgeon 2022 download

Dudgeon 2022

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Lincs 2022 download

Lincs 2022

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Inner Dowsing & Lynn 2022 download

Inner Dowsing & Lynn 2022

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Scroby Sands 2022 download

Scroby Sands 2022

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Galloper 2022 download

Galloper 2022

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Greater Gabbard 2022 download

Greater Gabbard 2022

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Gunfleet Sands & Demonstrator Site 2022 download

Gunfleet Sands & Demonstrator Site 2022

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London Array 2022 download

London Array 2022

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Kentish Flats & Extension 2022 download

Kentish Flats & Extension 2022

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Thanet 2022 download

Thanet 2022

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Rampion 2022 download

Rampion 2022

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Rhyl Flats 2022 download

Rhyl Flats 2022

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Gwynt Y Mor 2022 download

Gwynt Y Mor 2022

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North Hoyle 2022 download

North Hoyle 2022

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Burbo Bank & Extension 2022 download

Burbo Bank & Extension 2022

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Barrow 2022 download

Barrow 2022

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West of Duddon Sands 2022 download

West of Duddon Sands 2022

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Walney 1-4 2022 download

Walney 1-4 2022

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Ormonde 2022 download

Ormonde 2022

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Robin Rigg 2022 download

Robin Rigg 2022

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Nysted 2022 download

Nysted 2022

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Horns Rev 3 2022 download

Horns Rev 3 2022

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Horns Rev 2 2022 download

Horns Rev 2 2022

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Horns Rev 1 2022 download

Horns Rev 1 2022

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Gode Wind 2 2022 download

Gode Wind 2 2022

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Gode Wind 1 2022 download

Gode Wind 1 2022

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Borkum Riffgrund 2022 download

Borkum Riffgrund 2022

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Anholt 2022 download

Anholt 2022

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Fishing Plotter Installation Guide download

Fishing Plotter Installation Guide

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News

Geotechnical Survey - Northern Endurance Project - Teesside

A marine geotechnical survey is estimated to commence on 1st February 2023 at Teesside, Redcar. The JUP Sandpiper is estimated to mobilise to the site on 1st February 2023 and carry out a geophysical survey. Borehole locations are subject to change based on the findings of the completed Geophysical survey. The survey is expected to last no longer than 21 days subject to weather conditions.

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Morgan and Mona Offshore Windfarms - Metocean operational status, system maintenance and recovery

Permanent recovery of metocean instrumentation from the Mona (South) location is planned for the upcoming weather window on 28 January 2023.

The floating LiDAR instrumentation at Morgan and Mona sites are scheduled to remain in place until 2024.

 

All metocean instrumentation including the seabed frame, ballast weight, marker buoy and associated mooring will be removed from the site (refer to mooring diagram provided in Section 7). Operations are expected to require one day on site to complete.

 

The floating LiDAR systems deployed at the Mona (South) and Morgan (North) locations will continue their deployment (refer also to mooring diagram provided in Section 7). The metocean instrumentation at the Morgan location will also remain deployed until a suitable weather window is identified for recovery of this system.

See detailed map on our bulletin website
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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 - 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 - Noble 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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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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Drilling Activities at the Pensacola

Jack-up Drilling Rig Maersk Resilient is expected to be moved into the Pensacola location for drilling activities and is expected to arrive 01 NOV 2022. The rigmove is operation and weather dependant and actual arrival date may be later. The duration of the the drilling operations are expected to be 87 days.

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Pre-lay Anchor pattern: Ocean Great While rig at Ben Lawers Well

Please be advised that bp Exploration & Operating Co. Ltd, propose to place moorings on the seabed at the Ben Lawers exploration well, circa 8 nautical miles South West of the Foinaven Field, from early February, in advance of the mooring of the Semi-submersible rig 'Ocean Great White', due on site late February.

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Lost core barrel - Abbey Field - Block 47/3

The core barrel of seabed sampling equipment has sheared while undertaking sampling in the Abbey field (Block 47/3) and is now sticking approximately 2.75 m out of the seabed.

Geotechnical survey activities are currently underway in the Abbey field, Block 47/3. While carrying out seabed sampling with a vibrocore, the core barrel sheared off and remains stuck in the seabed. The core barrel is a hollow cylindrical tube, with diameter of approximately 10 cm. It is estimated that the core barrel sticks out of the seabed and it is approximately 2.75 m proud of the seabed.

See detailed map on our bulletin website
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Geophysical Survey at G13 & H05 Moray Offshore Windfarm (East) Limited

Please be advised that Moray Offshore Windfarm (East) Limited (Moray East) are planning to undertake geophysical surveys around Wind Turbine Generator (WTG) ME-G13 and H05. The geophysical survey is covering an area of 270m x 270m centred on the WTG. The survey vessel to be used is the Waterfall, detailed below. Activities are expected to take place between 02/02/2023 and 28/02/2023.

Please be advised that Moray Offshore Windfarm (East) Limited (Moray East) are planning to undertake  geophysical surveys around Wind Turbine Generator (WTG) ME-G13 and H05. The geophysical survey is covering an area of 270m x 270m centred on the WTG.  The survey vessel to be used is the Waterfall, detailed below. Activities are expected to take place between  02/02/2023 and 28/02/2023.

See detailed map on our bulletin website
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Topside Removal - Amethyst A1D

ERDA Jackup Barge will come alongside Amethyst A1D to remove the topside. The Jacket will be retained.

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Topside Removal - Amethyst A2D

The ERDA Jackup Barge will come longside the Amethyst A2D and remove the topside.

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Well Operations - Finlaggan F3

Drilling Operations at the Finlaggan Manifold using the Transocean Paul B Lloyd Junior (PBLJ) MODU. PFML plan to drill the Finlaggan F3 well using the PBLJ semi - submersible drilling rig with operations commencing approximately 4th February 2023. The operations are expected to be concluded by the end of May 2023

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

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 January 2023, with start dates and anticipated durations listed against each individual location in the attached NtM. Start dates are subject to change due to weather.

 

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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Nearshore Marker Buoy Installation – Moray Offshore Windfarm (West) Limited Offshore Export Cable

This notice to mariners is to inform that Moray Offshore Windfarm (West) Limited (Moray West) will install a nearshore HDD marker buoy on or around 2nd February 2023. Details of the buoy and its location are provided below. A further NtM will be issued when the buoy is removed.

Once the nearshore marker buoy is installed during the initial HDD diving works by Isle of Jura, it will stay in position until the Offshore Export Cables (OEC) installation works at nearshore area are fully completed. Forecasted to be completed around 31 December 2023, but the exact duration and the nearshore marker buoys recovery date will depend on overall project progress.

See detailed map on our bulletin website
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Nearshore Weather Buoy Installation– Offshore Export Cable

This notice to mariners is to inform that Moray Offshore Windfarm (West) Limited (Moray West) will install a nearshore weather buoy on or around 2nd February 2023. Details of the buoy and its location are provided in the description. A further NTM will be issued when the buoy is removed.

Once the nearshore weather buoy is installed during the initial HDD diving works by Isle of Jura, it will stay in position until the Offshore Export Cables (OEC) installation works at nearshore area are fully completed. Forecasted to be completed around 31 December 2023, but the exact duration and the nearshore weather buoy recovery date will depend on overall project progress.

See detailed map on our bulletin website
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Infill Drilling - Buzzard

CNOOC will be conducting infill drilling of 2 wells at the Buzzard North Terrance Manifold.

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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 330 days from April 2022. The drilling rig Noble Hans Duel is locating to the south face of the Southwark Platform. It will be fully within the platform's 500m safety zone.

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Major component repairs at Moray East Wind Farm – Safety Zones

Moray East Offshore Windfarm are planning major component repair activities on several Wind Turbine Generators (WTGs). The list of potential WTGs where works may take place are listed below. These activities will be undertaken using the Jack-up vessel Wind Orca, expected during the period between 1st February and 2023 and 3rd March 2023.

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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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Dogger Bank A Asset Preservation Campaign

The Offshore Supply Vessel, VOS Start, will carry out Asset Preservation operations within Dogger Bank A construction site. The works will be performed in a single campaign, commencing on the 6th of November 2022 and continuing until approximately 30th September 2023. The works will be continuous, 24 hours a day. The operations will include visual inspections and maintenance at installed wind turbine foundation locations.

During operations, the VOS Start 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 500m separation distance from the Offshore Supply Vessel and pass at reduced speed. Fishing gear or other equipment with seabed intervention should not be deployed when approaching the working area.

See detailed map on our bulletin website
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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%.

See detailed map on our bulletin website
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Rig - Well-Safe Guardian

Notice to alert sea users to P&A activity within the Claymore field using the Well-Safe Guardian MODU in Block 14/19 on the 14/19-B2 well.

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Pre-Lay Anchor pattern Well-Safe Guardian at Claymore B2 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 Claymore Field from 22/01/2023 in advance of the mooring of the Semi-submersible Rig Well-Safe Guardian.

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Dogger Bank B: Export Cable Trenching Trial Operations

The cable laying vessel, NKT Victoria, will perform trenching trial operations within the DBB Export Cable Corridor. NKT Victoria will be testing a newly built jet plough within the locations provided. At each trial location, the proposed sequence of activities includes: Pre-Lay Survey of selected site; Demonstration burial of the cable with NKT Jet Plough (Max length of 1 km); As-Buried Survey; and Recover cable back to NKT Victoria.

The trenching trials will commence on the 01 February 2023 for approx. 2 weeks. The work will be continuous, 24 hours a day.

 

NKT Victoria will be testing a newly built jet plough within the locations provided. At each trial location, the proposed sequence of activities includes:

  • Pre-Lay Survey of selected site;
  • Demonstration burial of the cable with NKT Jet Plough (Max length of 1 km);
  • As-Buried Survey; and
  • Recover cable back to NKT Victoria.

 

All equipment used for the trials will be removed upon completion of the test.

 

During operations the NKT Victoria 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 NKT Victoria and pass at reduced speed. Fishing gear or other equipment with seabed intervention should not be deployed when approaching the working area.

 

An Offshore Fisheries Liaison Officer will be onboard NKT Victoria to provide support and coordination to fishing vessels

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ECR Landfall Scouting Survey

Data acquisition nearshore along the coastline between Banff/Macduff to Fraserburgh, Scotland. Assisting with the selection of a suitable landfall site for an Export Cable Route as part of an upcoming wind farm development.

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White Cross Offshore Windfarm - Floating Lidar Service Visit -Update

Please be advised that from the 05th of December 2022, the Floating LiDAR deployed in Celtic sea to record wind and metocean data for the White Cross offshore wind farm will undergo a service visit at the offshore deployment location.

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. An image and schematic of the floating lidar buoy is provided below.

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Metocean Buoy Deployment - Caledonia Offshore Wind Farm

Caledonia Offshore Wind Farm will be deploying a metocean buoy to collect meteorological and oceanographic climate data from the Caledonia OWF site.

The OSIL Fulmar Data Buoy is anticipated to be deployed by Briggs Marine Contractors Ltd no earlier than the 9th of January 2023 (weather dependent). The buoy will remain in situ until May 2023.

 

Buoy specifications and more details of the works can be found within the attached NtM.

 

*NtM V4 attached 20/01/23 - extension to deployment period & change of vessel

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Light Intervention Vessel at Beryl Nevis Central location

Apache will have the light intervention vessel "MSV Well Enhancer" working within Nevis Central 500m zone, i.e. workover on Well (S68/S70) during March 2023. MSV Well Enhacer will be set-up over and attached to Well (S68/S70) on DP, during the well workover there will be some diving operations being carried out, plus possible well abandoment operations at the end of the campaign.

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Drilling Activity - Valaris 122 at Shearwater

The Valaris 122 (jack-up drilling rig) will be conducting drilling operations at the Shearwater field on the 30/22b-SW-IWA well. The Valaris 122 will be drilling as a standalone location in the Shearwater field on a single well campaign. The total duration of drilling and suspension activities is expected to last approximately 170 days.

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

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Rig Move - Valaris 122

Rig move of the Valaris 122 (jack-up drilling rig) from Orlov (22/08a-E) to Shearwater (22/30b- SW-IWA)

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

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.

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Surveys - White Caterthun Area

Fugro Voyager (Call Sign: 9V3888) will be conducting a geotechnical soil investigation within a 2km radius of the following location: Start Date = around 3rd February 2023 Duration expected to be approx. 14 Days to around 17th February 2023.

Fugro Voyager (Call Sign: 9V3888) will be conducting a geotechnical soil investigation within a 2km radius of the following location:

Start Date = around 3rd February 2023

Duration expected to be approx. 14 Days to around 17th February 2023.

e approx. 14 Days to around 17th February 2023.

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Seabed Obstruction - Isabella Area

Within Block 30/12 - there is a Seabed Obstruction in the form of a “CANDuctor”, which is a 6m diameter steel cylinder protruding 2.5m from seabed. In place after rig departure on 23rd January until removal in April 2023.

Within Block 30/12 - there is a Seabed Obstruction in the form of a “CANDuctor”, which is a 6m diameter steel cylinder protruding 2.5m from seabed.   In place after rig departure on 23rd January until removal in April 2023. 

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Shetland HVDC Project - Pre-Lay Grapnel Run

NKT, on behalf of Scottish Hydro Electric Transmission Plc, are due to commence a pre-lay grapnel run (PLGR) along the Shetland HDVC link cable route from KP160 to KP0 Weisdale Voe, Shetland. The operation will be performed by JD-Contractors with the vessel Sima.

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 PLGR will be completed using a grapnel towed from the vessel Sima. The grapnel will be deployed to retrieve any potential debris that could pose a hazard to cable installation.Penetration for the grapnel rigs,  shall range from 0.5 to 1.8m into the seabed.

 

The attached NtM details the proposed works, co-ordinates and a chart describe the working area.

 

Please be aware that vessel, Sima, will be restricted in her 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.

 

Sima will display the appropriate shapes and lights in accordance with COLREGs Rules 16 and 18

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Rig - Scarabeo 8

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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Anchor on pipeline PL2104

Anchor discovered on pipeline during survey activities 17/12/2022. Approx dimensions L3.9M X W2.0m X H1.8m

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DSV installation inspection/survey works - Liverpool Bay Area

Various diver inspections on various platforms in the Liverpool bay area. Diver inspection works at various elevations on Douglas, Douglas Accom, Hamilton and Hamilton North platforms in the Liverpool bay area. Pipeline Inspects will also take place if time allows, All work will be completed from the DSV Boka Atlantis. 

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Dogger Bank B Boundary Installation Campaign

The Trinity House Buoy Installation Vessels Patricia and Galatea, will be installing the Dogger Bank B boundary demarcation buoys in the Southern North Sea in two tranches - THV Patricia Tranche 1 29th December 2022 to 01st January 2023 and THV Galatea Tranche 2 02nd February 2023 to 06th February 2023

The 20 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.

 

The first tranche of buoys have been deployed, these are East Cardinal E1 and Special Mark(s) SP6 to SP9 inclusive.

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Drill collar on North Eigg well 3/24c-6

It is intended to leave the drill collar stump on the North Eigg well 3/24c-6. This will be +/- 20 ft above seabed and is 8” outer diameter. Well 3/24c-6 is located 40 m South of the 3/24c-6B well.

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Rig Move - Valaris V120 MODU at Talbot

Notice to alert sea users to drilling and completion operations at the Talbot subsea development well location, in block 30/13e, using the Valaris V120 MODU.

The Valaris V120 jackup drilling rig is currently on location at the Jade platform.  It is due to complete operations on the current well at the end of January, then move to the Talbot subsea development well location, in block 30/13e, to commence drilling and completion operations on three wells.

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Wellhead Structure - N. Eigg 3/24c-6b

Left wellhead structure - CL/1317/0. The N. Eigg 3/24c-6b wellhead (DrilQuip 18-3/4" SS-15 Rigid Lockdown 15,000 psi) will be left in place once the well suspension operations have been completed. The wellhead height above the seabed is 9 ft (2.74 m). The N. Eigg (3/24c-6b) wellhead is subject to its own Consent to Locate for a Permanent/Fixed Structure on the seabed.

The N. Eigg 3/24c-6b wellhead Consent to Locate will become effective when the PBLJ departs the N. Eigg location and the 3/24c-6b well is left suspended.

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Diving - Hewett Field

Flushing and disconnection of various pipelines. DSV Vessel Boka Da Vinci will be working within the Hewett field. Various pipelines connected to Littly Dotty/Deborah/Dawn subsea wells will be flushed from topsides and disconnected subsea by divers. 

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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.

MV Fugro Quest (geotechnical vessel) is performing site investigation activities on the Norfolk Boreas site from the second half of December 2022 until February 2023. Vessel shall work on geotechnical investigation locations where they will remain stationary for period of 4-24 hours.

 

MV Atlantis Dweller (ROV support vessel) will be performing survey activities on the Norfolk Boreas, Norfolk Vanguard and Cable Crossing sites from approximately 17 January 2023 for approx. 2 weeks. The vessel shall deploy an ROV for surveys alongside seabed infrastructure.

 

 

Contact Details – Fisheries Liaison

Jonathan Keer; jonathan@brownmay.com; 07850 604851

Freya Sandison; freya@brownmay.com; 07857 500609

 

Contact Details – Vattenfall

Rory Anderson; rory.anderson@vattenfall.com

Richard Brewer; richard.brewer@vattenfall.com

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

Emma Merryfield - emma.merryfield@vattenfall.com

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Rig Site Survey - Scoter & Merganser

An anchoring conditions and debris Geophysical survey for the emplacement of a semi-submersible drilling rig is to be conducted at the Scoter and Merganser well cluster locations in UKCS block 22/30A by Fugro Galaxy.

Data acquisition will comprise of an anchoring conditions survey within an 10km x 6.125km greater working area, using towed side scan sonar, hull mounted multibeam echo sounder and sub-bottom profiler on Fugro Galaxy.

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Survey Equipment Trials - Liverpool Bay

Gardline propose to conduct equipment trials during Feb 2023 within UKCS Quads 110 and 113 (Option1) or UKCS Quads 109 and 110 (Option2). We intend to perform trials to test a new 6 streamer deployment system from MV Ocean Geograph. The trials package will consist of dual sparker sources, 6 streamers, MBES, USBL, Side scan sonar and dual frequency SBES. Trials programme will be SV dip, 6 streamer and dual sparker deployment and function tests.

Equipment trials are expected to take 7 days within a two month window, subject to weather conditions on site. The trials will have towed equipment comprising 6 x Short Streamers, varying from 24-48m in length, 2 x Sparker sources and Side Scan Sonar.

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Unmanned Surface Vessel (USV) Survey - Hartlepool

Activity: Operations of remotely piloted Uncrewed Surface Vessels (USVs) are planned out of Hartlepool during January & February 2023. The vessels will be engaged in survey activities.

Dates: Operations will take place subject to weather and other operational factors from 9th January 2023 for up to 4 weeks.

A support vessel will escort the USV from the active ports to clear water. 

 

Although the vessel is uncrewed, it is crewed throughout the 24 hour operation, piloted remotely using 360 degree cameras and other navigational aids.

The survey area boundary is indicated in Table 1 below also. In addition to the survey area, the USVs will transit from one of the named ports above to site.

 

Table 1: Area Boundary

Point

Latitude

Longitude 

1

54.796272

-1.31112

2

54.871667

-1.353383

3

54.82037

-1.09621

4

54.914414

-1.189275

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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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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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Floating LiDAR and Metocean Survey - Muir Mhòr Offshore Wind Farm

Metocean instrumentation and a floating LiDAR system (FLS) are planned for deployment within the boundary of the proposed Muir Mhòr Offshore Wind Farm Project site in the North Sea. All instrumentation is planned for deployment by Green Rebel from the Port of Aberdeen to the Muir Mhòr Project site in January 2023. Deployment vessel information will be included in a subsequent update to this notice. MARINE USERS are requested to maintain a safe clearance distance of 500m.

All instrumentation will be deployed at a single deployment location within the project site. The purpose of the instrumentation is to gather Metocean and wind data to inform the proposed Muir Mhor Offshore Wind Farm Project.

 

The FLS mooring comprises of a surface visible buoy moored to the seabed through a combination of rope and chain via two mooring points.  Two guard buoys will be located at a distance of 40m from the main FLS buoy in a North/South orientation, with the mooring spread covering a 315m radius. There is also a seabed frame for current measurements contained within the overall deployment footprint.

 

The FLS light characteristics are Fl (5) Y 20s with 5nm range. The guard buoys’ light characteristics are FI Y 5s with 3nm range and include a yellow St. Andrew’s Cross topmark. The FLS will be designated as “Miur Mhor Floating Lidar” on AIS, with MMSI number 992351400.

 

Details of the surface visible buoy, guard buoys, seabed frame and mooring arrangement are provided in the attachments.

 

MARINE USERS are requested to maintain a safe clearance distance of 500m.

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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.

Mariners are advised that the vessel outlined below is expected to commence operations at Triton Knoll Offshore Wind Farm for work within the Triton Knoll Offshore Wind Farm site.

 

Vessel Name

Type

Call Sign

MMSI

IMO

Operating Port

Commence Date

NOS Maker Crew Transfer Vessel 0ZJD2 219026749 9802346 Grimsby 07/01/2023

 

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

 

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.

 

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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Shefa-2 Segment 7 - area with exposed cable

Shefa-2 Segment 7 cable break happened Friday 14th October and a limited area of 6-700 m of cable is exposed and exposes a risk to fishing activity. Therefore, a section of wet stored cable is sensitive to any external impacts and constitutes a snagging risk for anchoring, fishing gear or other equipment with seabed intervention.

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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.

 

Therefore, a section of wet stored cable is sensitive to any external impacts and constitutes a snagging risk for anchoring, fishing gear or other equipment with seabed intervention. 

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Shefa-2 Segment 8 - Exposed cable section & cable damage

Shefa-2 Segment 8 cable damage has been repaired. There are sections of wet stored (surface laid) cable that are sensitive to any external impacts and constitutes a snagging risk for anchoring, fishing gear or other equipment with seabed intervention.

Repair works are completed but PLIB operation is still waiting for suitable weather window

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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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Bristol Channel Regional Benthic Sampling Survey

The vessels Argyll Explorer / Seren Las 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 both the Argyll Explorer & the Seren Las at different points throughout the project.

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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Moray West - Construction / Nearshore Horizontal Directional Drilling (HDD) / Diving Works

Moray Offshore Windfarm (West) Limited (Moray West) will be commencing construction works of the Moray West Offshore Wind Farm Offshore Transmission Infrastructure (OfTI Marine Licence MS-00009813) no earlier than 22 January 2023, with the first construction works being carrying out nearshore horizontal directional drilling (HDD) diving works from a vessel at the Moray West Offshore Wind Farm Export Cable Corridor.

Moray Offshore Windfarm (West) Limited (Moray West) will be commencing construction works of the Moray West Offshore Wind Farm Offshore Transmission Infrastructure (OfTI Marine Licence MS-00009813) no earlier than 22 January 2023, with the first construction works being carrying out nearshore horizontal directional drilling (HDD) diving works from a vessel at the Moray West Offshore Wind Farm Export Cable Corridor.

 

Whilst the Moray West wind farm site located on the Smith Bank in the Outer Moray Firth, approximately 22.5km from the Caithness coastline, the shore end of the export cable routes is close to the town of Portsoy.

 

The HDD diving vessel works are to take place within the blue boundary shown in the figure in the attached NtM.

 

The works are anticipated to commence no earlier than, 22 January 2023, and HDD diving works duration is forecasted to be completed around late April 2023, but the exact HDD diving works duration and completion date will depend on weather and progress of the works.

 

Nearshore HDD works

Scope of work to include deployment of the diving vessel four-point mooring system to support two HDD duct ends preparatory works at nearshore, utilising the diving vessel Isle of Jura (supported by Dalby Don as the crew transfer vessel) and will remain in place until all nearshore HDD diving works are complete.

 

On completion of the HDD diving works, the weather buoy will be deployed by Isle of Jura in DP mode.

 

General Safety Advice

Please be aware that, during the HDD work activities, by virtue of its mode of operation the Dive support vessel Isle of Jura will be Restricted in her Ability to Manoeuvre (RAM) and will also display the flag ALPHA and appropriate day shapes while diving operations are taking place as defined under COLREGs (International Regulations for Preventing Collisions at Sea 1972, Rule 3). Masters of vessels are therefore requested to maintain their vessels and gears at a minimum safe passing distance from the vessel of 500 metres when it is undertaking work and showing the appropriate shapes and lights in accordance with COLREGs Rule 27 In order to not compromise the safety of the Isle of Jura and their crew, and the ability to undertake its contracted works.

 

Vessel Information

Nearshore HDD diving operations will be carried out by the diving vessel Isle of Jura.

Isle of Jura will carry out the two HDD duct ends preparatory works at nearshore utilising onboard diving spread moored at HDD duct ends punchout locations by deploying the vessel four-point mooring system.

 

The diving vessel Isle of Jura will be supported by Dalby Don as the crew transfer vessel.

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Notice to Mariners - Mainland Orkney-Hoy North and Centre Installation

Please be advised that Briggs Marine Contractors (on behalf of SHEPD) shall be undertaking the following subsea cable installations: • Mainland Orkney to Hoy North • Mainland Orkney to Hoy Centre

Please be advised that Briggs Marine Contractors (on behalf of SHEPD) shall be undertaking the following subsea cable installations: • Mainland Orkney to Hoy North • Mainland Orkney to Hoy Centre

 

Both cables are to be installed in close proximity to each other within the corridor shown in Fthe attached NtM.

 

Vessel Operations

The work utilises cable ship Elektron for the cable installations.

DSV Forth Warrior 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 Trader, regularly passing inside the working corridor for crew transfers and supporting nearshore cable landing operations.

Support vessel, Athenia will be carrying out pre-lay and post lay surveys of the cable route.

Operations are expected to commence on the 25th January for a period of approximately 4 weeks.

 

Work Description

During operations the vessels Elektron, Forth Warrior and Athenia 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 operations may be conducted on a 24-hour basis. ROV and Dive operations will be 12-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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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 Leask Marine C-Odyssey, call sign 2ETW7, will conduct offshore and subsea operations. Works will include loading and preparatory work at Cullivoe Harbour 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. Equipment may be temporarily stored just offshore of the new Cullivoe Marina breakwater in 5-7m water depth, marked with a yellow buoy and single Fl Y 5s (one yellow flash every 5 seconds) light. See coordinates below.

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Tidal Flow Measurement Equipment Deployment

As a berth holder at the Morlais Demonstration Zone (off of South Stack, Anglesey, Wales), a site operated by Menter Môn, HydroWing in partnership with Bangor University wish to undertake resource/velocity data collection. Data collection will utilise Acoustic Doppler Current Profiler (ADCP). 2 x ADCP’s will be placed on the seabed in locations highlighted below and will be left for ~5 weeks and recovered on available window. Deployment/recovery operations will require ~0.5-1 days on site each.

Description attached in overview file 

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Wellhead Severance and Recovery - Melville (210/24a-8)

The subsea Melville wellhead will be severed 10ft below the mudline & recovered, along with associated fishing gear debris.The operation will be conducted by the Well Enhancer well intervention vessel, which will hold on location using DP. The wellhead will be severed and recovered to the vessel.Up to two ROVs (one workclass, one observation) will be deployed, and debris baskets & deadman anchors will be temporarily placed on the seabed.Fishing gear entangled on the wellhead will be recovered.

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SHETLAND HVDC Link - Weisdale Voe Landfall Works

NKT, on behalf of Scottish Hydro Electric Transmission Plc, will be undertaking trenching operations at Weisdale Voe to assist with the installation of the Shetland HVDC Link cable.

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.

 

NKT plans to install two polyethylene (PE) ducts in preparation to protect the Shetland HVDC Link cable. One duct will be used for the HVDC cable bundle and a second duct for cable redundancy. Trenching operations will be completed by an onshore excavator on tracks, the trench will start from KP0.00 to KP0.022.

 

Prior to trenching and backfilling operations, a silt screen will be installed. The silt screen will be approx. 100m long. By installing the silt screen the work area will be a confined area, reducing sediment dispersal to the wider area.

 

The trench will be 1.8m deep and 2m wide at the base, as the trench will have sloping sides it will be wider at the top. Once the PE ducts are installed the trench will be backfilled with rock. The seabed and beach will then be reinstated with the excavated material to return to the original profile as close as reasonably practicable.

 

The works will be carried out during day light hours based on a 12-hour working day (6 days a week).

 

The works are due to commence on the 09.01.2023 and have an estimated completion date of 20.02.2023

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Rig Move - Stena Don

The Stena Don is planned to move to the Shaw well location on Block 22/22a. The rig will be on location for drilling and completion of a development well. A short well flowing period is anticipated towards the end of the programme which will result in flaring of limited quantities of oil and gas. The rig will be positioned using 8 anchors located around 1,500 - 1,600m from the rig's position

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Banff field West cardinal buoy

Banff West cardinal buoy loss of battery power potentially affecting AIS identification and lights. Buoy is currently charted at 56°59'48.49"N, 01°17'20.72"E, however was re-positioned in 2022 to: 56°59’ 53.97"N, 01°17’22.89"E

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Subsea Cable Installations Carradale – Arran Mull - Coll

Please be advised that Briggs Marine Contractors (on behalf of SHEPD) have undertaken subsea trenching operations along sections of the following cable routes: • Carradale to Arran • Mull to Coll The trenching operations are now complete and the remaining workscope involves installation of cable protection at the Arran, Mull & Coll shore landings. This NtM has been updated to remove exclusion zones from a majority of the cable routes. Please see Vessel Operations below.

Please be advised that Briggs Marine Contractors (on behalf of SHEPD) have undertaken subsea trenching operations along sections of the following cable routes: • Carradale to Arran • Mull to Coll The trenching operations are now complete and the remaining workscope involves installation of cable protection at the Arran, Mull & Coll shore landings. This NtM has been updated to remove exclusion zones from a majority of the cable routes. Please see Vessel Operations below.

 

Vessel Operations The trenching operations utilising the Grand Canyon 3 for the ROV jet trenching is now complete.

Split pipe installation will be carried out by Divers from the Forth Jouster.

Split pipe operations are expected to commence 4th January for a period of 6 weeks, weather dependent.

 

Work Description The DSV Forth Warrior will be positioned on spud legs acting as a working platform for diving operations. Split pipe will be installed from the shore towards open sea, along the cable.

Divers will be in the water and may not be visible on the surface. Should any vessel wish to come within 500m of the vessels, then direct communication with either the Master / Operator or the guard vessel stationed nearby is required.

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

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Subsea Electricity Cables – Ullapool-Altnaharrie

Mariners should be aware that the subsea electricity cable between Ullapool-Altnaharrie has now been installed.

Mariners should be aware that the subsea electricity cable between Ullapool-Altnaharrie has now been installed. Charts and other datasets will be updated to reflect this new cable route once final as-laid positions have been received. In the meantime the attached design RPL for this cable can be used as guidance for the cable's approximate location.

 

Please also be aware that there are areas of cable exposure along this route, and mariners are requested to exercise caution when operating within the area.

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Subsea Electricity Cables – Mull-Coll and Carradale-Arran

Mariners should be aware that the subsea electricity cables between Mull to Coll and Carradale to Arran have now been installed.

Mariners should be aware that the subsea electricity cables between Mull to Coll and Carradale to Arran have now been installed. Charts and other datasets will be updated to reflect these new cable routes once final as-laid positions have been received. In the meantime the attached design RPLs for these cables can be used as guidance for the cables’ approximate locations.

 

Please also be aware that there are areas of cable exposure along these routes, and mariners are requested to exercise caution when operating within the area.

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New Fishing Restriction - Carlingford Lough Marine Conservation Zone

New legislation is coming into force in Northern Irish waters (DAERA) from the 1 January 2023. This legislation will restrict fishing using mobile gear within this site. The Kingfisher Fishing Restriction website will be updated once DAERA are able to approve the extents of each area. Updates to follow…

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New Fishing Restriction - Murlough Bay Special Area of Conservation

New legislation is coming into force in Northern Irish waters (DAERA) from the 1 January 2023. This legislation will restrict fishing using mobile gear within this site. The Kingfisher Fishing Restriction website will be updated once DAERA are able to approve the extents of each area. Updates to follow…

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New Fishing Restriction - Outer Belfast Lough Marine Conservation Zone

New legislation is coming into force in Northern Irish waters (DAERA) from the 1 January 2023. This legislation will restrict fishing using mobile gear within this site. The Kingfisher Fishing Restriction website will be updated once DAERA are able to approve the extents of each area. Updates to follow…

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New Fishing Restriction - Rathlin Island Special Area of Conservation and Marine Conservation Zone

New legislation is coming into force in Northern Irish waters (DAERA) from the 1 January 2023. This legislation will restrict fishing using mobile gear within this site. The Kingfisher Fishing Restriction website will be updated once DAERA are able to approve the extents of each area. Updates to follow…

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New Fishing Restriction - Rathlin Island Restricted Area

New legislation is coming into force in Northern Irish waters (DAERA) from the 1 January 2023. This legislation will restrict fishing using static and mobile gear within this site. The Kingfisher Fishing Restriction website will be updated once DAERA are able to approve the extents of each area. Updates to follow…

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New Fishing Restriction - Red Bay Special Area of Conservation

New legislation is coming into force in Northern Irish waters (DAERA) from the 1 January 2023. This legislation will restrict fishing using static and mobile gear at a depth of 10 metres or more below Chart Datum as shown on the Admiralty Chart within this site. The Kingfisher Fishing Restriction website will be updated once DAERA are able to approve the extents of each area. Updates to follow…

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New Legislation - Skerries and Causeway Special Area of Conservation

New legislation is coming into force in Northern Irish waters (DAERA) from the 1 January 2023. This legislation will restrict fishing using mobile gear within this site. The Kingfisher Fishing Restriction website will be updated once DAERA are able to approve the extents of each area. Updates to follow…

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New Fishing Restriction - Skerries and Causeway (Exempted Areas)

New legislation is coming into force in Northern Irish waters (DAERA) from the 1 January 2023. This legislation will restrict demersal mobile gear from the Skerries and Causeway SAC. The restriction DOES NOT apply where a licence has been granted in respect of a fishing vessel under section 15 of the Fisheries Act 2020(1) to fish using demersal mobile gear in the Skerries and Causeway exempted areas.

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New Fishing Restriction - Skerries and Causeway Restricted Area

New legislation is coming into force in Northern Irish waters (DAERA) from the 1 January 2023. This legislation will restrict fishing using static gear within this site. The Kingfisher Fishing Restriction website will be updated once DAERA are able to approve the extents of each area. Updates to follow…

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New Fishing Restriction - Strangford Lough Marine Conservation Zone

New legislation is coming into force in Northern Irish waters (DAERA) from the 1 January 2023. This legislation will restrict fishing using mobile gear within this site. The Kingfisher Fishing Restriction website will be updated once DAERA are able to approve the extents of each area. Updates to follow…

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New Fishing Restriction - The Maidens Special Areas of Conservation

New legislation is coming into force in Northern Irish waters (DAERA) from the 1 January 2023. This legislation will restrict fishing using mobile gear within this site. The Kingfisher Fishing Restriction website will be updated once DAERA are able to approve the extents of each area. Updates to follow…

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New Fishing Restriction - Waterfoot Marine Conservation Zone

New legislation is coming into force in Northern Irish waters (DAERA) from the 1 January 2023. This legislation will restrict fishing using static and mobile gear within this site. The Kingfisher Fishing Restriction website will be updated once DAERA are able to approve the extents of each area. Updates to follow…

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Dogger Bank A & B OSP Dredging and Scour Protection Installation Campaign

Trailing Suction Hopper Dredger (TSHD) Pedro Alvares Cabral and Fall Pipe Vessel (FPV) Simon Stevin will perform dredging and subsea rock installation at the OSP locations of both DBA & DBB

TSHD Pedro Alvares Cabral will be performing her scope from mid-January till mid-February, planning her activities around a suitable weather window during this period. Following the dredging works, FPV Simon Stevin will install the rock foundation at both OSP locations. Start date will depend on the progress made by TSHD Pedro Alvares Cabral though the expected installation period for the Simon Stevin will be throughout February. Work will be continuous, 24 hours a day. 

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Rig - Well Safe Protector

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 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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Geophysical survey - Kattegatt

Geophysical survey in the Kattegatt area using M/V Northern Wind call sign: 2IOX2 & Northern Storm Call sign: MISA7 from 15th December until 28th February 2023.

Please see attachment.

  • VESSEL: M/V NORTHERN WIND Call sign: 2IOX2
  • MANEUVERABILITY: LIMITED
  • EQUIPMENT: MULTIBEAM (HULL MOUNTED) SOUND VELOCITY PROFILER (TOWED)
  • TIME: 15TH OF DECEMBER 2022 TO 2ND OF JANUARY – 2023
  • AIM: HYDROGRAPHIC CONDITIONS FOR A WIND FARM

MV Northern Wind Calls sign: 2IOX2 Bridge: +46 8 558 030 39 Email: master-nw@clinton.se Contact person at Clinton Marine Survey: Notice to Mariners Martin Wikmar CEO +46 708 79 90 20 Philip Ljungström Project Manager +46 708 79 90 26

  • VESSEL: M/V NORTHERN WIND Calls sign: 2IOX2, M/V NORTHERN STORM Call sign: MISA7
  • MANEUVERABILITY: LIMITED
  • EQUIPMENT: MULTIBEAM & SUBBOTTOM PROFILER (HULL MOUNTED) SOUND VELOCITY PROFILER, SIDESCAN SONAR, MAGNETOMETER (TOWED)
  • TIME: 2ND OF JANUARY 2023 TO 28TH OF FEBRUARY – 2023
  • AIM: HYDROGRAPHIC CONDITIONS FOR A WIND FARM

M/V Northern Storm Calls sign: MISA7 Bridge: +46 31 30 11 132 Email: master-northernstorm@clinton.se Contact person at Clinton Marine Survey: Notice to Mariners Philip Ljungström Project Manager +46 708 79 90 26 Martin Wikmar CEO +46 708 79 90 20

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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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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 - 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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Hunterston Dispersion Study

Carry out dye dispersion study at Hunterston construction yard within Firth of Clyde. Dye dispersion studies will also be carried out at this location and passing vessels may see red dye patches and surface drogues in the surrounding area down tide of the discharge position below. In addition, a number of water samples will be collected close to the survey centre point.

Please be advised that Anderson Marine Surveys will be undertaking a hydrographic survey at a site located at Hunterston Construction Yard located within the Firth of Clyde. The survey will include the deployment of seabed mounted instrumentation at site. The seabed instrumentation will be marked by unlit red surface markers buoy.

 

Dye dispersion studies will also be carried out at this location and passing vessels may see red dye patches and surface drogues in the surrounding area down tide of the discharge position below. In addition, a number of water samples will be collected close to the survey centre point.

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Celtic Sea FliDAR Deployments

Deployment of 2x FliDAR buoys in the Celtic Sea. Two FliDAR systems are to be deployed to the Celtic sea to record metocean data. The FliDAR buoys will be deployed to position Zone 1A (English water) and Zone 5 (Welsh water), refer to locations in the coordinates table and chart below. Both buoys will be deployed from Falmouth harbour. The buoys will be in situ for 12 months (but up to 36 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. 
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Rig - Maersk Interceptor

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 - JB-115

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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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.

 

The secondary flidar buoy, SWLB060, see map and coordinates in the Notice to Mariners, has lost its AIS signal. As a result, the buoy is not actively transmitting its location, and is showing its position through lights and radar reflectors.

 

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

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Metocean Equipment Deployments at 3 sites within the SSE Ossian OWF

Partrac deployed the following array of metocean equipment at 3 sites within the Ossian floating offshore wind farm off the East coast of Scotland in August 2022: + Floating LiDAR buoy at sites 1 & 3 + Guard buoy at site 2 + Datawell Waverider buoy at sites 1,2 & 3 + Subsea mooring at sites 1,2 & 3 Metocean equipment will be deployed until August 2024, and maintenance visits will be undertaken every 3 months. Please maintain a 500m exclusion around each position.

FLOATING LIDAR BUOY The floating LiDAR buoys 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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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 - Deepsea Nordkapp

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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MCRP - MM - DOC - 0007 Morlais Scientific Activity Notification - SMRU PAM deployment

As part of the Marine Licence ORML1938 granted to Menter Môn Morlais, we are writing to you to notify you of the commencement of scientific activity where notification is required on the below date: DYDDIAD / DATE: 28/11/2022

Passive Acoustic Monitoring (PAM) - St Andrews University Sea Mammal Research Unit (SMRU) deployments in the Morlais tidal energy demonstration zone.

SMRU has installed equipment (Passive Acoustic Monitoring or PAM) on the seabed to gather acoustic data.

This document provides information on the PAM deployments for the local fishing industry and other sea users in the area.

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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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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 - 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 - 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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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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Foundation Installation Campaign - Dogger Bank A

The Offshore installation vessel, HLV Seaway Strashnov, has completed the second part of the monopile foundation installation campaign. Currently the HLV Seaway Strashnov is undergoing scheduled drydock maintenance.

The works will re-commence in March 2023, 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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Rig - Well-Safe Guardian

Notice to alert sea users to P&A activity within the Buchan field using the Well-Safe Guardian MODU in Block 21/01 on the 21/01 - 3 well.

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Marine Aggregate Dredging Licence Area 481, Humber region - Notification of a new marine licence

The MMO has issued new marine licences to Tarmac and Van Oord UK to continue aggregate dredging in licence area 481 for a further 15 years.

On behalf of Tarmac Marine Ltd and Van Oord UK Ltd, this notice is to advise that the Marine Management Organisation has issued new 15 year marine licences, to Tarmac and Van Oord UK, for the dredging of marine aggregates and taking of sediment samples from Area 481, in the Humber region.

 

Dredging is anticipated to continue uninterrupted under the new Marine Licences.  

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Survey - Llyr Offshore Wind Farm Nearshore

A geophysical and environmental survey will be carried out between 1st December and 28th February. The geophysical survey will employ Multi-beam Echo Sounder (MBES), Side-scan Sonar (SSS), High-resolution Sub-Bottom Profiler (SBP) 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).

Please be advised that from the 1st of December 2022, N-SEA will be conducting geophysical and environmental surveys within the area shown in Chart 4, by the survey vessel ‘MV Coastal Observer’. Full vessel details are presented in paragraph 5 below. The survey will be carried out within the inshore section of the offshore export cable corridor starting at 3.0m physical depth and working out to -10.0m LAT.

The geophysical survey will employ Multi-beam Echo Sounder (MBES), Side-scan Sonar (SSS), a single magnetometer and Sub-bottom Profiler (SBP)[JHM5] [GL6] . All geophysical survey operations involve towed survey equipment (SSS and Magnetometer). During geophysical survey the vessel will be restricted in manoeuvrability All vessels which are operating within this area are requested to keep a 200 m distance from the MV Coastal Observer when it is restricted in its ability to manoeuvre and pass at minimum speed to reduce vessel wash.

The survey vessel will always be listening to VHF 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 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.

All nearshore activities will be undertaken during daylight hours.

Fisheries liaison is being carried out by SeaSource Offshore, whose details are provided. If you would like further details regarding the geophysical and/or environmental surveys, please contact the Fisheries Liaison Officer using the contact details in Paragraph 6.

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Survey - Llyr Offshore Wind Farm

A geophysical and environmental survey will be carried out between 1st December and 28th February. The geophysical survey will employ Multi-beam Echo Sounder (MBES), Side-scan Sonar (SSS), High-resolution Sub-Bottom Profiler (SBP) 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).

The notification is intended for circulation to all interested parties undertaking or managing activities in the vicinity of the planned survey works.

Please be advised that from the 1st of December 2022, N-SEA will be conducting geophysical and environmental surveys within the area shown in Chart 4 by the survey vessel ‘Braveheart Spirit’. Full vessel details are presented in paragraph 5 below. 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.

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

All geophysical survey operations involve towed survey equipment (Sidescan sonar (SSS), Magnetometer and Sub-Bottom Profiler (SBP)). During geophysical and environmental surveys when equipment is deployed the vessel will be restricted in manoeuvrability. All vessels which are operating within this area are requested to keep a 500 m distance from the Braveheart Spirit when it is restricted in its ability to manoeuvre and pass at minimum speed to reduce vessel wash. The survey vessel will always be listening to VHF 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 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.

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

Fisheries liaison is being carried out by SeaSource Offshore, whose details are provided. If you would like further details regarding the geophysical and/or environmental surveys, please contact the N-Sea project manager using the contact details in Paragraph 6.

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HAEVA JUB at Neptune Platform

Please be advised that the HAVEA JUB will be interfaced with the Neptune platform for Well Intervention Work from 30th November to the 28th February 2023.

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Surface Laid Cable - The Whitley Bay Stub Route (2)

The installation of the Havhingsten fibre optic telecommunication Whitley Bay Stub Route has been completed. Due to challenging soil conditions and rocky seabed, there are sections of surface laid cable and areas with shallow burial. No further operations to bury this section of cable are planned due to the presence of rock. The cable is protected by the armoured cable type and from the BMH up to kilometre point (KP) 0.474 the cable is additionally protected by Articulated Pipe.

Please be advised that installation of the Havhingsten fibre optic telecommunication Whitley Bay Stub Route has been completed.

 

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

 

The Whitley Bay Stub Route has been installed between the Beach Man Hole (BMH) 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.

 

Due to challenging soil conditions and rocky seabed, there are sections of surface laid cable and areas with shallow burial (less than 0.20m burial depth), coordinates can be found below. No further operations to bury these sections of cable are planned due to the challenging soil conditions. The cable is protected by the armoured cable type and from the BMH up to kilometre point (KP) 0.474 the cable is additionally protected by Articulated Pipe.

 

Coordinates for the surface laid cable and shallow burial areas are provided in the attached Notice to Mariners.

 

Post-Lay Inspection & Burial (PLIB) by jetting for the section of surface laid cable close to the territorial sea limit was completed on the 1 November 2022.

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Surface Laid Cable - The Whitley Bay Stub Route (1)

The installation of the Havhingsten fibre optic telecommunication Whitley Bay Stub Route has been completed. Due to challenging soil conditions and rocky seabed, there are sections of surface laid cable and areas with shallow burial. No further operations to bury this section of cable are planned due to the presence of rock. The cable is protected by the armoured cable type and from the BMH up to kilometre point (KP) 0.474 the cable is additionally protected by Articulated Pipe.

Please be advised that installation of the Havhingsten fibre optic telecommunication Whitley Bay Stub Route has been completed.

 

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

 

The Whitley Bay Stub Route has been installed between the Beach Man Hole (BMH) 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.

 

Due to challenging soil conditions and rocky seabed, there are sections of surface laid cable and areas with shallow burial (less than 0.20m burial depth), coordinates can be found below. No further operations to bury these sections of cable are planned due to the challenging soil conditions. The cable is protected by the armoured cable type and from the BMH up to kilometre point (KP) 0.474 the cable is additionally protected by Articulated Pipe.

 

Coordinates for the surface laid cable and shallow burial areas are provided in the attached Notice to Mariners.

 

Post-Lay Inspection & Burial (PLIB) by jetting for the section of surface laid cable close to the territorial sea limit was completed on the 1 November 2022.

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Unidentified Object - Millar Pipeline

Two unidentified objects have been discovered in the vicinity to the Miller pipeline which potentially could be unexploded ordinance).

There has been a discovery of a couple of unidentified objects in vicinity to the Miller pipeline (potential unexploded ordinance). A guard vessel is being mobilising to guard the area to prevent all vessels from sailing within 2.5km of these objects until they can be determined and/or disposed of.

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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 and C-Force. 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
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Deployment of Floating LiDAR Buoy and Subsea Metocean Mooring

On behalf of Floating Energy Allyance, Partrac Ltd. has deployed a Floating LiDAR Buoy and Subsea Metocean Mooring within the Buchan Offshore Wind Project site, located off the East coast of Scotland. The deployment was carried out on 28th November 2022, using the vessel Isle of Jura. The metocean equipment will be deployed for 2 years (24 months), and maintenance visits will be undertaken every 3 months.

FLOATING LIDAR BUOY: The floating LiDAR buoy records meteorological data. It is 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 (Figure 2). The lantern has a flash sequence Fl (5) Y 20s.

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Amended Fishing Restriction: Mobile fishing permit: Skerries and Surrounds

A permit holder or named representative is not authorised to remove any spiny lobster. Permit conditions may apply. Please contact Devon & Severn IFCA office for more details. 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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Amended Fishing Restriction: South Devon Inshore Fishing Grounds

Trawling or dredging is prohibited from the 1 April to 31 December inclusive. No fishing boat shall carry a scallop dredge or beam trawl in any part of the specified areas or zones unless every part of any dredge or beam trawl is totally inboard the boat. Trawling or dredging may take place with vessels fishing with pelagic trawls. 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'.

 

Please go to the updated restriction for more information: https://kingfisherrestrictions.org/fishing-restriction-map?noticeId=2167

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Amended Fishing Restriction: South Devon Inshore Fishing Grounds

Trawling or dredging is prohibited. No fishing boat shall carry a scallop dredge or beam trawl in any part of the specified areas or zones unless every part of any dredge or beam trawl is totally inboard the boat. Trawling or dredging may take place with vessels fishing with pelagic trawls. 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'.

 

Please go to the updated restriction for more information: https://kingfisherrestrictions.org/fishing-restriction-map?noticeId=2168

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Rig - Maersk Innovator

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

Partrac are to service and redeploy two metocean monitoring buoys near co-located guard buoys at two separate locations within the Dogger Bank South Project Area, approximately 65 miles and 80 miles east of Whitby, UK. Servicing operations are estimated to be carried out over three days from 29th November to the 1st of December 2022, weather permitting. 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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Plugging & Abandonment of Wells via use of Jack-Up Vessel

Jack up vessel Valaris Norway will be towed alongside the 47/8A platform, once in location it will 'jack up' and connect to the 47/8A via a 'walk to work'. Once connected a series of works will be undertaken to enable the plugging and abandonment of the wells associated with the 47/8A

Jack up vessel Valaris Norway will be towed alongside the 47/8A platform, once in location it will 'jack up' and connect to the 47/8A via a 'walk to work'. Once connected a series of works will be undertaken to enable the plugging and abandonment of the wells associated with the 47/8A

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Shallow Pipeline Protection - Bittern W/Inj PL1650 & Gas Lift PL1649

The 12-inch water injection pipeline PL1650 and piggybacked 4-inch gas lift pipeline PL1649 are in an approximately 1m deep seabed crater and covered by grout bags.

The 12-inch water injection pipeline PL1650 and piggybacked 4-inch gas lift pipeline were in freespan for approximately 10 metres with a span height of approximately 1 metre. The freespan has been filled with grout bags and the pipelines covered as far as practibale by divers. 

 

An approximately 1m deep crater remains and the pipeline protection is now diver placed grout bags. 

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Apache "Diving Operations in the Beryl Area"

Apache North Sea will be carrying out diving operations from the DSV Seven Atlantic in the Beryl area for 28 days, commencing early to mid -February 2023. Tie-in new Well to the Buckland Northern Drill Centre, i.e. laying spools, flexibles and control lines between Buckland NDC and the new Well "BKSW" using the DSV Seven Atlantic. 

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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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Rig Move – Ensco 92 to Boulton BM Field

Harbour Energy plan to move the Ensco 92 Jack-up drilling rig from the Victor JM filed to the Boulton BM field location to perform abandonment operations on the Boulton BM 44/21a-B1Z, 44/21a-B2Y, 44/21a-B3 and 44/21a-B4 development wells.

Throughout well abandonment operations there will be a dedicated ERRV on location monitoring the surrounding sea area.

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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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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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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 156 days.

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

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Open Water Plug and Abandonment Well Intervention Campaign

Well intervention operations are taking place at the Maria, Mustard, Mable and 2 x Huntington wells which will consist of two operational phases. •    Phase 1 - Abandonment preparation from the Helix Seawell LWIV  •    Phase 2 - Wellhead and casing severance and recovery from the Helix Well Enhancer LWIV

Well intervention operations are taking place at the Maria, Mustard, Mable and 2 x Huntington wells which will consist of two operational phases (only one vessel will be present at any one time): •    Phase 1 - Abandonment preparation from the Helix Seawell LWIV  •    Phase 2 - Wellhead and casing severance and recovery from the Helix Well Enhancer LWIV

 

The Helix Seawell vessel will commence mobilisation on the 19th November 2022. The Seawell Enhancer will then mobilise in December to complete Phase 2 works. All work at these four locations will be completed by 31st January 2023.

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ERDA Jack-up Barge at ST3

Please be advised that the ERDA Jack-up Barge is due to depart from A2D in the Amethyst (UKCS 47/14) field on Thursday 17th November 2022 (dependent on weather), and transit to ST3 in the Ravenspurn North (UKCS 42/30) field where it will commence well intervention work, with an estimated arrival of Sunday 19th November 2022. The Jack-up Barge will remain at ST3 until 20th February 2023.

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Rig - Valaris 123

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 - Wet stored cable

Scottish Hydro Electric Transmission Plc, are installing the Shetland HVDC Link cable. As part of Campaign 1 installation activity, there is currently in place, a section of wet stored cable that is sensitive to any external impacts and constitutes a snagging risk for anchoring, fishing gear or other equipment with seabed intervention.

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

 

Fishing gear or other equipment with seabed intervention should not be deployed within the wet stored cable area from KP148.9 to KP156.3. Please see coordinates and chart attached.

 

Within the area KP148.9 to KP156.3 approx. 700m of the wet stored cable has a shallow burial depth of <40cm and a section of surface laid cable, a submerged buoy is attached to the end of the wet stored cable to aid retrieval of the cable. The wet stored cable will remain in place until completion of installation Campaign 3, expected in July 2023.

 

 

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Installation of CAN Basic at Leverett Location

The CAN-basic will be deployed to the seabed by crane from a DP OSV, the Norman Maximus. The area will be monitored by guard vessel / ERRV until such time that the MODU arrives on location

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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 ~10th 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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Seaweed Farm Installation - Bideford Bay North Devon

a 1Km2 Seaweed Farm is being deployed in Bideford Bay North Devon. The farm is made up of a large network of submerged longlines (ropes) c.220m in length which constitute a hazard to navigation. The Farm perimeter is marked by yellow special marks (Fl.Y.5s )

Algapelago Marine Limited is deploying a 1km2 seaweed farm off the North Devon Coast in Bideford Bay. The site perimeter will be marked with yellow special marks, exhibiting a Fl.Y.5s light (flashing, yellow, every five seconds), surmounted by a yellow 'X' shaped top mark. The farm will be developed incrementally across 2-3 years.

 

It will comprise a network of submerged and partly submerged long-lines, similar to those used in mussel farming. The site is located in 17-18 metres of water approximately 4 NM due north of Clovelly harbour and 5NM west southwest of the Bideford Bar. 

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Wave data buoy - East of Lunna Ness

Deployment of Wave Data Buoy within a 350*350m box centred around the location given. The instrument is moored with a block on the seabed, with a mooring swing radius of 75-100 m about the location given. Colour: Bright Yellow Markings: High-visibility reflective tape, marked 'SURVEY' Dimensions: 75cm Ø x 39cm.

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Wave Data Buoy - Fish Holm, Yell Sound

Deployment of a Wave Data Buoy within a 400*400m box centred around the location given. The instrument is moored with a block on the seabed with a mooring swing radius of 75-100 m about the location given. Colour: Bright Yellow Markings: High-visibility reflective tape, marked 'SURVEY' Dimensions: 75cm Ø x 39cm.)

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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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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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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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Rig - Noble Sam Turner

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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Establishment of AIS AtoN at Moray East Met Mast Caisson

Please be advised that an Automatic Identification System (AIS) Aid to Navigation (AtoN) has been established to indicate the Moray East Met Mast Caisson.

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ADCP deployment on the seabed - Skye

Scientific Acoustic Doppler Current Profiler on the sea bed – no surface marker. One scientific Acoustic Doppler Current Profiler deployed on the sea bed in October 2021 to collect currents data for environmental monitoring and hydrodynamic model validation failed to surface and is still in position.  The instrument has no surface markers and is fitted with acoustic releases.

The instruments is inside low profile trawl-resistant frame in the Little Minch, west of Skye.  If the buoyant top with the current profiler eventually releases from its base, it will be tethered to the base on the sea bed by a length of dyneema rope.  Please inform Marine Scotland Science if the top section is spotted on the surface or recovered.

 

See attachment for photos of the frames, a chart with the position and positional details but please disregard the position of moorings in Linne Crowlin and the Summer Isles, as those have been recovered.

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

The Scottish Association for Marine Science have deployed 1 mooring which supports sound recording equipment and acoustic loggers that record echolocation clicks of porpoises. 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 6 months and should be retrieved in April 2023.

The Scottish Association for Marine Science have deployed 1 mooring which supports sound recording equipment and acoustic loggers that record echolocation clicks of porpoises. 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 location for 6 months and should be retrieved in April 2023. 

 

The intention of deploying the mooring is to collect acoustic information on the acoustic behaviour of harbour porpoises 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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Abandoned Well - 15/21a-51

No structures left on the seabed – decommissioned fully.

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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.

Instrumentation was succesfully deployed on 19th October 2022 at the Morven Project site. A total of 2 metocean instrumentation moorings and one FLS mooring were deployed at each of two deployment locations within the Project site (known as Morven North and Morven South).

 

The metocean moorings comprise of one directional waverider buoy (DWR) which will is visible on the water surface, moored to the seabed through a combination of rope and rubber cords. The second metocean mooring is 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 comprises of 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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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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Morgan and Mona Offshore Wind Farm - Flattened Test Coil Obstruction

The seabed obstruction originally 1m high which was caused while retrieving a test coil from the seabed. Has now been successfully flattened level with the seabed. This warning will remain in place as a precautionary measure.

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Rig - COSL Innovator

Oil & gas rigs 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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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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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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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 - 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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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 - 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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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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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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