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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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Privacy

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

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Accessibility

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

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The Importance of Renewable Energy Structures

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

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The Future of Subsea Cables

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

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Submarine Cable Maintenance

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

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Maintenance / Repair Operations

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

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Cable Burial

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

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Installation Procedures and Methods

Selection of provisional route

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

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Design

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

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About

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

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Downloads

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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 2020 download

Kingfisher Regional - North Sea North and West 2020

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Kingfisher Regional - North Sea Central 2020 download

Kingfisher Regional - North Sea Central 2020

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Kingfisher Regional - North Sea South 2020 download

Kingfisher Regional - North Sea South 2020

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Kingfisher Regional - English Channel 2020 download

Kingfisher Regional - English Channel 2020

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Kingfisher Regional - South West Approaches 2020 download

Kingfisher Regional - South West Approaches 2020

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Kingfisher Regional - Baltic North 2020 download

Kingfisher Regional - Baltic North 2020

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Kingfisher Regional - Baltic South 2020 download

Kingfisher Regional - Baltic South 2020

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Kingfisher Wallchart 2020 download

Kingfisher Wallchart 2020

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Beatrice 2021 download

Beatrice 2021

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Kingfisher Regional - Irish Sea 2020 download

Kingfisher Regional - Irish Sea 2020

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Hornsea 2 2021 download

Hornsea 2 2021

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Borselle 1+2 2021 download

Borselle 1+2 2021

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Moray East 2021 download

Moray East 2021

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Hywind 2021 download

Hywind 2021

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Aberdeen Demonstrator Project 2021 download

Aberdeen Demonstrator Project 2021

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Kincardine 2021 download

Kincardine 2021

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Blyth Demonstrator Project 2021 download

Blyth Demonstrator Project 2021

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Teesside 2021 download

Teesside 2021

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Hornsea Project One 2021 download

Hornsea Project One 2021

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Westermost Rough 2021 download

Westermost Rough 2021

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Humber Gateway 2021 download

Humber Gateway 2021

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Triton Knoll 2021 download

Triton Knoll 2021

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Race Bank 2021 download

Race Bank 2021

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Sheringham Shoal 2021 download

Sheringham Shoal 2021

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Dudgeon 2021 download

Dudgeon 2021

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Lincs 2021 download

Lincs 2021

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Inner Dowsing & Lynn 2021 download

Inner Dowsing & Lynn 2021

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Scroby Sands 2021 download

Scroby Sands 2021

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Galloper 2021 download

Galloper 2021

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Greater Gabbard 2021 download

Greater Gabbard 2021

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Gunfleet Sands & Demonstrator Site 2021 download

Gunfleet Sands & Demonstrator Site 2021

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London Array 2021 download

London Array 2021

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Kentish Flats & Extension 2021 download

Kentish Flats & Extension 2021

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Thanet 2021 download

Thanet 2021

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Rampion 2021 download

Rampion 2021

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Rhyl Flats 2021 download

Rhyl Flats 2021

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Gwynt Y Mor 2021 download

Gwynt Y Mor 2021

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North Hoyle 2021 download

North Hoyle 2021

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Burbo Bank & Extension 2021 download

Burbo Bank & Extension 2021

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Barrow 2021 download

Barrow 2021

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West of Duddon Sands 2021 download

West of Duddon Sands 2021

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Walney 1-4 2021 download

Walney 1-4 2021

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Ormonde 2021 download

Ormonde 2021

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Robin Rigg 2021 download

Robin Rigg 2021

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Nysted 2021 download

Nysted 2021

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Horns Rev 3 2021 download

Horns Rev 3 2021

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Horns Rev 2 2021 download

Horns Rev 2 2021

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Horns Rev 1 2021 download

Horns Rev 1 2021

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Gode Wind 2 2021 download

Gode Wind 2 2021

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Gode Wind 1 2021 download

Gode Wind 1 2021

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Borkum Riffgrund 2021 download

Borkum Riffgrund 2021

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Anholt 2021 download

Anholt 2021

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Fishing Plotter Installation Guide download

Fishing Plotter Installation Guide

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News

Installation of the Southwark Platform

During May 2021 Seaway Heavy Lifting, on behalf of HSM and IOG, will be installing a steel jacket and topsides at block ref 49/21, the Southwark Field.

During May 2021 Seaway Heavy Lifting, on behalf of HSM and IOG, will be installing a steel jacket and topsides at block ref 49/21, the Southwark Field.

 

The work will involve the utilisation of heavy lift vessel (HLV) Seaway Strashnov to lift the structures from a cargo barge onto a pre-determined seabed location.

 

In addition to the HLV there will be towing  vessels and a barge in the vicinity.

 

It is planned for the HLV to operate in Dynamic Positioning (DP) mode.

 

Upon installation of this permanent fixed structure (extending above the sea surface) a permanent 500-metre radius safety zone shall come not effect and it is requested that no vessel shall transit within 500-metres of the Southwark Platform locality.

See detailed map on our bulletin website
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Installation of Blythe Platform

During May 2021 Seaway Heavy Lifting, on behalf of HSM and IOG, will be installing a steel jacket and topsides (adjacent to the Dudgeon Wind Farm) at block ref 48/23, the Blythe Field.

During May 2021 Seaway Heavy Lifting, on behalf of HSM and IOG, will be installing a steel jacket and topsides (adjacent to the Dudgeon Wind Farm) at block ref 48/23, the Blythe Field.

 

The work will involve the utilisation of heavy lift vessel (HLV) Seaway Strashnov to lift the structures from a cargo barge onto a pre-determined seabed location.

 

In addition to the HLV there will be towing  vessels and a barge in the vicinity.

 

It is planned for the HLV to operate in Dynamic Positioning (DP) mode.

 

Upon installation of this permanent fixed structure (extending above the sea surface) a permanent 500-metre radius safety zone shall come not effect and it is requested that no vessel shall transit within 500-metres of the Blythe Platform locality.

 

Note: Pipelines radiating from the platform are trenched and covered below natural seabed level.

See detailed map on our bulletin website
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Rig - Maersk Resolute

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

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Seismic 2D Survey - RDI21 - MCG21001 (mid-June to end-June operations)

GeoexMCG will be acquiring the Regional Deep Imaging Project 2021 (RDI21) between May and September 30th, 2021. The survey is a cross border 2D seismic survey in Norway, UK, Faroe Islands and Denmark.

The aim of the survey is to image deep seated crustal structures in the North Sea and a single source of 6,270 cu.in and one cable of 12 km length towed at 15-30m depth (slant) will be used. The survey will be carried out by the seismic vessel M/V Akademik Lazarev (UAJS) and Jan van Gent (YJVF4) will be the support vessel.

 

There will be two FLOs onboard, one Norwegian from Geograf Maritime and one from SFF Service Limited (Scottish Fishermen's Federation). In addition, the vessel will have MMO and PAM operators onboard. 

 

Since RDI21 is a very regional survey, there will be some flexibility in deviating from the preplotted survey lines, if needed.  

 

(Please note that d/t limitations in the number of coordinates possible to submit in the online notice submission system, the survey has been divided into several notices where each notice contains the lines that are planned to be acquired within the time frame specified in the heading. The .png map shows the full RDI21 2D survey outline.)

See detailed map on our bulletin website
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Survey - Regional Deep Imaging Project (June - mid-June operations)

GeoexMCG will be acquiring the Regional Deep Imaging Project 2021 (RDI21) between May and September 30th, 2021. The survey is a cross border 2D seismic survey in Norway, UK, Faroe Islands and Denmark.

The aim of the survey is to image deep seated crustal structures in the North Sea and a single source of 6,270 cu.in and one cable of 12 km length towed at 15-30m depth (slant) will be used. The survey will be carried out by the seismic vessel M/V Akademik Lazarev (UAJS) and Jan van Gent (YJVF4) will be the support vessel.

 

There will be two FLOs onboard, one Norwegian from Geograf Maritime and one from SFF Service Limited (Scottish Fishermen's Federation). In addition, the vessel will have MMO and PAM operators onboard. 

Since RDI21 is a very regional survey, there will be some flexibility in deviating from the preplotted survey lines, if needed.  

 

(Please note that d/t limitations in the number of coordinates possible to submit in the online notice submission system, the survey has been divided into several notices where each notice contains the lines that are planned to be acquired within the time frame specified in the heading. The .png map shows the full RDI21 2D survey outline.)

See detailed map on our bulletin website
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Seismic 2D Survey - RDI21 - MCG21001 (May operations)

GeoexMCG will be acquiring the 'Regional Deep Imaging Project 2021' (RDI21) between May and September 30th, 2021. The survey is a cross border 2D seismic survey in Norway, UK, Faroe Islands and Denmark.

The aim of the survey is to image deep seated crustal structures in the North Sea and a single source of 6,270 cu.in and one cable of 12 km length towed at 15-30m depth (slant) will be used. The survey will be carried out by the seismic vessel M/V Akademik Lazarev (UAJS) and Jan van Gent (YJVF4) will be the support vessel.

 

There will be two FLOs onboard, one Norwegian from Geograf Maritime and one from SFF Service Limited (Scottish Fishermen's Federation). In addition, the vessel will have MMO and PAM operators onboard.

 

Since RDI21 is a very regional survey, there will be some flexibility in deviating from the preplotted survey lines, if needed.  

 

The survey has been divided into several notices where each notice contains the lines that are planned to be acquired within the time frame specified in the heading. The .png map shows the full RDI21 2D survey outline.

See detailed map on our bulletin website
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ADCP deployments on the seabed - Skye and Outer Hebrides

Deployment of two scientific Acoustic Doppler Current Profilers on the sea bed for 6-12 months – no surface markers.

We will be deploying two scientific Acoustic Doppler Current Profilers on the sea bed for 6-12 months from May 2021 to collect currents data for environmental monitoring and hydrodynamic model validation.  The instruments have no surface markers and will be recovered using acoustic releases.  One of the instruments will be inside a low profile trawl-resistant frame (Little Minch, west of Skye) and one inside a steel frame (Loch Erisort).  See attachment for photos of the frames, a chart with their position and their positional details.

See detailed map on our bulletin website
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Power Cable Replacement Operations - Forties Field

Power Cable Replacement Operations between Forties Alpha Satellite Platform to Forties Echo Platform (MV Normand Cutter) mob date 19th April 2021

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Deployment of ADCPs - East of Lunna Ness, Taing of Kelswick

Deployment of two ADCP current meters mounted in a frame on the seabed at a depth of 50m, each connected via leaded groundline to anchored surface buoys 75m WSW of each instrument. Deployment Start w/c 10th May 2021. Deployment End August 2020.

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Deployment of Wave Survey Buoy - East of Lunna Ness

Deployment of an AquaNode Wave Buoy at 60 24.472'N, 001 4.956'W. Deployed at a depth of 70m, moored with a block on the seabed with a mooring swing radius of 200m about the location given. Deployment Start 27 October 2020. Deployment End May 2021

Colour: Bright Yellow

Dimensions: 750mm Ø x 391mm

See detailed map on our bulletin website
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Construction of wind farm - Moray East

Due to the construction of the Moray East Offshore Wind Farm, there are several elements to this notice - safety zones; construction schedule; and buoy positions.

For background information about Moray East, please visit: www.morayoffshore.com/moray-east

 

Safety Zones

Please be advised that the Scottish Ministers have authorised the use of the safety zones during construction and operation of the Moray East Offshore Wind Farm as detailed below.

 

During construction

  • A 500 metre radius around each WTG and OSP where construction works are taking place that include sensitive activities being undertaken by vessels RAM. A maximum of three of such zones is permitted at any one time. 
  • A 50 metre radius around partially completed WTGs and OSPs where work is not underway and the risk assessments identify a need. 
  • A 50 metre radius around each completed WTG and OSP prior to commissioning and as required by a risk assessment process. 

During major maintenance

  • A 500 metre radius around all major maintenance works being undertaken around the WTGs and OSPs. No more than one major maintenance zone is permitted at any one time.

Construction Activities

It is currently anticipated that weather permitting offshore construction works will be carried out on a continuous basis (i.e. 24 hour working, seven days a week) unless notified otherwise.

 

Please be aware that by virtue of its mode of operation and the equipment deployed, construction vessels listed in the table below may be Restricted in their Ability to Manoeuvre 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 distance from these vessels of 500 metres when they are undertaking it work and showing the appropriate shapes and lights.  Further Notice to Mariners will be issued as construction progresses.

 

  •  
 

Company,

Vessel &

Call Sign

Survey Area

Survey Area

Start Timeframe & Duration

GV Replenish

MASY7

As above

As above

1st May 2019 for approximately 34 months

GV BOUNTIFUL

MJLF4

As above

As above

30th April 2020 for approximately 20 months

NSL Discovery

As above As above 13th April 2021 until further notice

Windcat19

2ATD3

As above As above 20th August 2020 Until further notice

Windcat 6

MXFD

As above As above from September 23rd 2020 onwards

GV Kinnaird 

GHNE

As above

As above

16th July 2020 Until further notice
GV Ability As above As above 16th July 2020 Until further notice

Acta Centaurus

As Above As Above 21st January 2021 until further notice

World Bora

OWJW2

As above As above 1st October 2020 Until further notice
HST Harri As above As above 28th January 2021 Until further notice
Windcat 40 As above As above 4th Feb 2021 until further notice
  As above As above  
Njord Balder As above as above 03rd May 2021 until further notice
  As above As above  
  As above As above  
Waterfall As above As above 30th March 2021 until further notice
Island Crown As above As above 20th May Until further notice
Blue Tern As above As above 30th April until further notice
Acta Auriga As above As above 3rd May until further notice
Olympic Artimus As above As above 20th May until further notice

 

See detailed map on our bulletin website
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Pre-Lay Moorings for West Hercules

Pre-lay mooring installation for West Hercules

Pre-lay moorings to be installed for the West Hercules from earliest 20th May. 

Mooring installation will be protected by a Guard Vessel until the rig arrives on location

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Survey - Boyla 4D towed streamer survey (ABP21001)

Aker BP ASA is conducting a 4D towed streamer acquisition with PGS Geophysical AS. The vessels on the field will be Ramform Vanguard and Sanco Chaser. This is a cross border seismic survey, with the main part of the survey on the Norwegian side.

AkerBP ASA is conducting a 4D seismic survey over the Boyla field. It is anticipated that the UK section will take a maximum of four days to complete. The Survey Area at Boyla will cover 37 square kilometres in UK waters. The Greater Work Area will cover 151 square kilometres in UK water. The Company will conduct line changes in the greater work area.

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Penguins Field - Vessel Activity

Penguins Field Development - Bundle XT Tie-ins and DC2 Bundle XT Tie-ins

 

Seven Oceanic RSV – Wet Store Spools Ph1 (Subsea 7) Penguins Redevelopment Project - Infield 10/04/21 – Depart Field 20/04/21

Main scope will include the wet storing of new tie-in spools within the Penguins Field and also the Brent C 500m zone.  Additional activities will include the installation of concrete corner blocks adjacent to the newly installed towheads and the recovery of buoyancy tanks from the newly installed bundle systems.

 

Seven Atlantic DSV – DC2 Bundle XT Tie-Ins (Subsea 7) Penguins Redevelopment Project - Infield 05/05/21 – Depart Field 19/04/21

Greenfield tie-in work within the Penguins field, connecting the PAN-N and Tybalt flowbases to the newly installed DC2 bundle.  The scope will include barrier testing, spool deployment and installation, TSCJ installation and subsequent mattress and grout bag protection works.

     

    Seven Atlantic DSV (Subsea 7) Gas Export & Tybalt Tie-ins - Penguins Redevelopment Project - Infield 03/05/21 – Depart Field 16/05/21

    • Gas Export Tie-ins at DC5
    • Tie-in spools between RBM & GE Pipeline
    • Tie-in Spools at Tybalt

    DEME Flintstone Rockdump Vessel - Rockdumping at DC2 Bundle - Penguins Redevelopment Project - Infield 23/06/21 – Depart Field 27/06/21

    • Partial DC2 Bundle rockdump

    Seven Pegasus DSV (Subsea 7) Tie-ins, Leak Test and De-watering - Penguins Redevelopment Project - Infield 19/05/21 – Depart Field 26/07/21

    • Gas Export Tie-Ins, Leak Test and De-watering 
    • Complete D7 Tie-ins
    • Brownfield Bundle Tie-ins (DC2)
    • DC2 Bundle Tie-Ins
    • Brownfield Bundle Tie-ins (DC3 midline)
    • UT Checks (Brownfield)

     

    DEME Rockdump Vessel – Rockdumping - Penguins Redevelopment Project - Infield 30/06/21 – Depart Field 03/07/21

    • Re-instatement of Rockdump at DC4 DBBV
    • Partial DC2 Bundle Rockdump

     

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    Subsea Cable Works - Sanday - Eday & Eday - Westray

    Please be advised that Briggs Marine Contractors (on behalf of SHEPD) will be undertaking cable installations and preparatory works within a 1km wide corridor between the islands of Sanday-Eday and Eday-Westray from 9th May for 14 Days.

    The work will utilise the DP2 cable laying vessel Elektron call sign: LADO, support Vessel Forth Joustercall sign: 2BME4 and support craft Celtic Trader, Celtic Mara, Celtic Nomad and Celtic Voyager.

     

    The installation and preparation (PLGR) work aims to be concentrated within the existing cable route corridors, defined by the coordinates as listed below. These operations will commence during an appropriate weather and tidal window following 09/05/2021 and will continue over a planned minimum period of 14 days, weather permitting.

     

    Work Description:

    Cable installation will be completed by Elektron, during which time it will be assisted by Forth Jouster, Athenia and support craft Celtic Trader, Celtic Mara, Celtic Nomad and Celtic Voyager. Cable lay operations will be conducted on a 24 hour basis. Prior to installation, Forth Jouster will complete PLGR route clearance operations on both planned cable routes. Other vessels should maintain an appropriate and safe distance of 500 m when passing the vessels whilst operational and should pass at the lowest possible speed to avoid vessel wash effects. Passing vessels should contact operational vessels on VHF prior to passing. Vessels will be working throughout 24 hours and will display appropriate day shapes and lights during reduced visibility and night operations. During operations, vessels will be restricted in their ability to manoeuvre.

     

    Primary Equipment for Cable Installation and Diving Operations

    Activity Equipment Approx distance from vessel Vessel
    Cable Installation Subsea Power Cable in water colum Up to 500m Elektron
    PLGR Towed Grapnels Up to 500m Forth Jouster
    Cable Installation Assistance Divers Up to 200m Forth Jouster
    Cable Installation Assistance ROV Up to 200m Athenia

     

     

     

     

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    Export Cable Installation (Beach) - Hornsea Project Two

    Ørsted continuing export cable installation works in the intertidal area as part of the ongoing construction of the Hornsea Project Two OWF.The export cable pull has been completed, the cable is exposed on the intertidal area prior to cable burial works.

    Landfall Preparation and Cable Installation Please be advised that the second of three export cable pull-ins is complete and the SW cable (yellow, central circuit shown in Figure 1) is exposed on the beach prior to burial works commencing. The Maagd will be leaving site on or around 10th May 2021 and returning approximately 2 weeks later. In addition to this export cable installation activities in the intertidal area are ongoing at the landfall at Horseshoe Point, Lincolnshire and will continue until approximately 30th September 2021. Works will be continual and intermittent throughout these periods.

    It should be noted that export cable seabed preparation and installation seaward of mean low water springs is ongoing until end of 2021.

     

    Vessels:

     

    Vessel & Call Sign Activity

    Ndurance

    5BVH3

    Cable Installation and burial

    Coastal Vanguard

    PCFH

    AHT

    Linestroom

    PICW

    AHT
    Maagd Landfall tranporattion barge

    Titan Endeavour

    2ELT9

    Nearshore Survey

     

     

     

     

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    Survey - LOGGS site and approaches (Ref: 1227)

    A 1 Day LOGGS site and approaches survey 6th May - 31st May 2021. Using Vessel MV Titan Endeavour call sign: 2ELT9.

    Company Vessels

    Towed Cable

    Length & Depth

    Duration Survey Block

    Titan Environmental Survey Limited

    MV Titan Endeavour

    2ELT9

    2m

    5m

    06/05/2021 - 31/05/2021

    For 1 Day

    49

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    Survey - Pipeline Salvage Operations PL24(Ref: 1211)

    A 55 Day Pipeline Salvage Operations PL24 between 25th April - 31st August 2021.

    Company Vessels

    Towed Cable

    Length & Depth

    Duration Survey Block

    Perenco UK Limited

    TBC

    2m

    5m

    25/04/2021 - 31/08/2021

    For 55 Days

    53

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    Thames Estuary Region Survey

    Please be advised that A-2-Sea Solutions will be carrying out a geophysical survey within the region of the Thames Estuary. Survey operations will be carried out by the FPV Morven.

    The vessel will be using a multibeam echosounder throughout the survey, which will be running 24 hour operations. The survey should be complete within 14 days, dependant on weather.

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    Survey operations - Near Great Yarmouth

    Please be advised that A-2-Sea Solutions will be carrying out a geophysical survey within the region of Great Yarmouth. Survey operations will be carried out by the FPV Morven.

    The vessel will be using a multibeam echosounder throughout the survey, which will be running 24 hour operations. The survey should be complete within 14 days, dependant on weather.

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    Survey - Culzean Wells Site Survey(Ref: 1204)

    A 14 Day Site Survey at the Culzean Wells between 1st May - 31st October 2021.

    Company Vessels

    Towed Cable

    Length & Depth

    Duration Survey Block

    Total E&P North Sea UK Limited

    N/A

    2m

    5m

    01/05/2021 - 31/10/2021

    For 10 Days

    22

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    Liverpool Bay Acoustic Inspection Surveys

    Acoustic survey of Liverpool Bay ENI assets

    Full asset inspection survey of all ENI Liverpool Bay assets comprising multibeam echo sounder and towed side scan sonar data acquisition. Survey includes:

     

    Acoustic survey of of all LBA pipeline assets

    Acoustic survey of all LBA platform approach zones

    Acoustic survey of all LBA wellheads

    Acoustic survey of Resurgam wreck

     

    All works will be undertaken using the CWIND Challenger operating from Conwy. The vessel will be towing equipment up to 150m behind the vessel and will be displaying restricted maneuverability shapes/lights at all times in accordance with regulations. A wide berth is requested at all times when vessel operating. A VHF watch (Ch16) will be maintained at all times. 

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    Unmanned vessel survey in Hywind Scotland Wind Park area

    Use of a 2 meter long remotely controlled unmanned vessel to collect fish biomass information for the Hywind Scotland Wind Park area during June and July

    As part of the Hywind Scotland Wind Park, Equinor has subcontracted Akvaplan-niva to perform a survey using an autonomous vehicle – Sailbuoy – in the park area. The Sailbuoy is only 2 meters long and weighs 60 kgs. It will be deployed in second half of May in Bergen, Norway, and sail to Hywind Scotland. The time needed from Bergen to Hywind Scotland is approximately 21 days (~arrival primo/medio June). The Sailbuoy will have a pre-programmed mission plan, and will communicate to shore via satelittes. The Sailbuoy is driven by wind and sun, and the vehicle is equipped with solar panel and an echosounder as well as sensors for temperature, salinity and fluorescence.

     

    The purpose of the study is to collect relevant data on fish in the Hywind Scotland area using instrumented glider. The method is expected to mainly give data on prevalence and biomass, and less information on biodiversity. The data gathering in Hywind Scotland will take approximately 30 days (~until primo/medio July). After ended campaign in the wind park, the Sailbuoy returns back to Bergen for retrieval (~primo August). The results from the glider campaign is important also for further technology development.

     

    The Sailbuoy is collision and shock proven. It will be labelled with contact information.

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    Rig Move – Ensco 92 to Callisto ZM Field

    Chrysaor plan to move the Ensco 92 Jack-up drilling rig from the Victor JM field location to the Callisto ZM field location to perform abandonment operations on the Callisto ZM exploration well 49/22-6Z.

    Callisto ZM exploration well 49/22-6Z

     

    53°14'31.96"N  2°23'16.54"E

     

    Start Date: 25/05/21    End Date: 29/06/21

     

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

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    Survey - Central North Sea(Ref: 1191)

    A 62 Day Survey between April - 30th June.

    Company Vessels

    Towed Cable

    Length & Depth

    Duration Survey Block

    Shearwater

    Geoservices Ltd

    TBC

    8000m

    18m

    01/04/2021 - 30/06/2021

    For 62 Days

    19,20,21

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    Survey - Southern North Sea(Ref: 1163)

    A 165 Day Survey between April - 31st October. Using the vessel Amazon Warrior Call sign: 3FNE9.

    Company Vessels

    Towed Cable

    Length & Depth

    Duration Survey Block

    Shearwater

    Geoservices Ltd

    Amazon Warrior

    3FNE9

    8m

    01/04/2021 - 31/10/2021

    For 165 Days

    35,36,37,38,

    41,42,43,44

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    Decommissioning Activities – Hydrocarbon Free Activities on the Galahad Installation

    Planned HCF works are due to commence on the Galahad (UKCS 48/12BA

    The Jack up Barge HAEVA, will depart from Amethyst A1D (UKCS 47/14) and transit to the Lancelot Area Pipeline System (LAPS) field to the Galahad Installation, where it will commence HCF operations.

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    Hazard Anchor Chain Approx 25m - Neart na Gaoithe Offshore Wind Farm

    Mariners are advised that during boulder clearance works, the Sartor has discovered a seabed hazard within the boundaries of the offshore wind farm. The hazard has been identified as an anchor chain, with approximately 25m visible on the seabed surface.

    A 50-metre exclusion zone is advised around the anchor chain for safety reasons.  

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    Survey - Debris Survey Buckland Drilling location (Ref: 1221)

    A 2 Day Debris Survey Buckland Drilling location between the 4th May 2021 - 31st October. Using the vessel Fugro Galaxy Call sign: C6YY4.

    Company Vessels

    Towed Cable

    Length & Depth

    Duration Survey Block

    Fugro GB (North) Marine Ltd

    Fugro Galaxy

    C6YY4

    N/A

    04/05/2021 - 31/10/2021

    For 2 Days

    9

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    Construction of Wind Farm (Triton Knoll)

    Activities are continuing related to the development of the Triton Knoll wind farm, as detailed below. For background information visit: http://www.tritonknoll.co.uk/

    Mariners are advised of the following vessels commencing operations at the Triton Knoll Offshore Wind Farm as outlined below:

     

    Vessel Name

    Type

    Call Sign

    MMSI

    IMO

    Operating Port

    Commence Date

    Precision 1 Survey / Guard Vessel 2FCD2 235089165 N/A Hull 26/04/2021

     

    Mariners are advised of the offshore construction status at the Triton Knoll Offshore Wind Farm:

     

    The following vessels continue to be active at the Triton Knoll as outlined within previously issued NtM's 

    Vessel Name

    Type

    Call Sign

    MMSI

    IMO

    Operating Port

    Commence Date

    Seacat Intrepid

    Crew Transfer

    2HWU6

    235107284

    N/A

    Grimsby

    02/01/2020

    Esvagt Froude

    Service Operations Vessel

    OWWN2

    219590000

    9703461

    Grimsby

    02/02/2020

    Esvagt Wind 1

    High Speed Craft

    XPE6305

    219019815

    N/A

    Esvagt Froude

    02/02/2020

    Seacat Courageous

    Crew Transfer Vessel

    2IDC8

    235108711

    N/A

    Grimsby

    25/04/2020

    Normand Fortress Service Operations Vessel LIKW3 258537000 9371218 Grimsby 15/03/2021
    Windcat 11 Crew Transfer Vessel 2BIS9 235066459 N/A Grimsby 14/12/2020
    World Mistral Crew Transfer Vessel OWJT2 219018009 9681302 Grimsby 01/03/2021
    Pacific (Wind) Osprey Wind Turbine Installation Vessel 5BUF3 210286000 9621704 Able Seaton 10/01/2021
    Acta Orion Service Operations Vessel PCEN 244830883 9750268 Immingham 15/01/2021
    HST Euan Crew Transfer Vessel MGQO3 232025959 9883974 Grimsby 15/01/2021
    Afon Las Buoyage Maintenance Vessel 2JEM8 235115261 9547398 Hull 01/04/2021
    Afon Cefni Buoyage Maintenance Vessel 2FYX2 235095403 9258181 Hull 01/04/2021
    Margaret Mary Guard Vessel MGNM6 232025575 N/A Grimsby 12/04/2021
    Seacat Enterprise Crew Transfer Vessel MAPS9 232006483 N/A Grimsby 24/02/2021

     

    Construction 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 Installation & Commissioning and Service continues infield (27 WTG's currently installed).

    Construction 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 Installation & Commissioning and Service continues infield.
    • Expected arrival of Operations & Maintenance Crew Transfer Vessel – Windcat 11.
    • Expected arrival of Commissioning Crew Transfer Vessel - World Mistral.
    • Expected arrival of Survey Vessel - Precision 1.

    *** 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.

     

    Demarcation Buoys

    Partrac Ltd have deployed x12 Demarcation Buoys and x2 Metocean Buoy at the Triton Knoll Offshore Wind Farm (TKOWF) to mark the perimeter of the TKOWF site boundaries.

     

    Vessels are requested to leave a wide berth during the installation operations. The buoys will be deployed for a period of two years, and all equipment will be removed at the end of the installation.

     

    Buoy

    Structure

    Latitude

    Longitude

    Individual Specification

    TK01

    South Cardinal

    53°24.054'N

    000°57.935'E

    Pillar shaped with a south cardinal shaped top mark, exhibiting a Q (6) + L Fl 15s light character (5 nm nominal light range)  RECOVERED

    TK02

    Special Mark

    53°24.568'N

    000°54.433'E

    Pillar shaped with a yellow ‘x’ shaped top mark, exhibiting a Fl Y 5s light character (5 nm nominal light range)

    TK03

    Special Mark

    53°26.132'N

    000°50.008'E

    Pillar shaped with a yellow ‘x’ shaped top mark, exhibiting a Fl Y 5s light character (5 nm nominal light range)

    TK04

    Special Mark

    53°27.457'N

    000°45.927'E

    Pillar shaped with a yellow ‘x’ shaped top mark, exhibiting a Fl Y 5s light character (5 nm nominal light range)

    TK05

    South Cardinal

    53°28.859'N

    000°41.181'E

    Pillar shaped with a south cardinal shaped top mark, exhibiting a VQ (6) + L Fl 10s light character (5 nm nominal light range)   RECOVERED

    TK06

    Special Mark

    53°30.807'N

    000°41.826'E

    Pillar shaped with a yellow ‘x’ shaped top mark, exhibiting a Fl Y 5s light character (5 nm nominal light range)

    TK07

    North Cardinal

    53°32.196'N

    000°44.248'E

    Pillar shaped with a north cardinal shaped top mark, exhibiting a Very Quick (VQ) light character (5 nm nominal light range)

    TK08

    Special Mark

    53°32.444'N

    000°47.678'E

    Pillar shaped with a yellow ‘x’ shaped top mark, exhibiting a Fl Y 5s light character (5 nm nominal light range

    TK09

    North Cardinal

    53°32.428'N

    000°52.040'E

    Pillar shaped with a north cardinal shaped top mark, exhibiting a Q light character (5 nm nominal light range)

    TK10

    Special Mark

    53°29.595'N

    000°55.306'E

    Pillar shaped with a yellow ‘x’ shaped top mark, exhibiting a Fl Y 5 second (s) light character (5 nm nominal light range)

    TK11

    Special Mark

    53°26.979'N

    000°57.974'E

    Pillar shaped with a yellow ‘x’ shaped top mark, exhibiting a Fl Y 5s light character (5 nm nominal light range)

    TK12

    East Cardinal

    53°24.368'N

    001°00.228'E

    Pillar shaped with an east cardinal shaped top mark, exhibiting a Q (3) 10s light character (5nm nominal light range)

    TK13

    Metocean Buoy

    53°26.002'N

    000°55.091'E

    Triaxys metocean wave and current buoy (South) exhibiting a Fl (5) Y 20s light character (3 nm nominal light range)

    TK14

    Metocean Buoy

    53°30.581'N

    000°47.944'E

    Triaxys metocean wave and current buoy (North) exhibiting a Fl (5) Y 20s light character (3 nm nominal light range)

     

    Mariners are advised that all foundations monopiles have been installed and all inter-array and export cables have been installed, buried and need to be assumed as energised / live at all times.

     

    Local Notice to Mariners Recently

    NtM 001-2021 (05th January 2021)

    NtM 002-2021 (20th January 2021)

    NtM 003-2021 (17th March 2021)

    NtM 004-2021 (24th March 2021)

    NtM 005-2021 (06th April 2021)

    NtM 006-2021 (16th April 2021)

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    Notification of survey - Fugro Meridian

    The Fugro Meridian survey vessel will be mobilising from the port of Portsmouth on or around 6th May 2021 to undertake survey operations in the vicinity of the York platform in UKCS block 47/3.

    The Fugro Meridian survey vessel will be mobilising from the port of Portsmouth on or around 6th May 2021.  The vessel will be undertaking multibeam echo sounder and sidescan sonar survey operations in the vicinity of the York platform in UKCS block 47/3.  The survey location is outlined in the attached file and comprises an area of approximately 0.5 km2.

     

    The vessel is likely to be on location for a period of 1 day.  

     

    This schedule is subject to change depending on operational demands.  

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    Dogger Bank A&B Landfall HDD Pilot Drilling

    The offshore export cables, which will run from the offshore substation platforms (OSP’s) to the landfall, are 191 km in length for Dogger Bank A and 172 km for Dogger Bank B. These cables come ashore to the north of Ulrome on the Holderness Coast.

    The main DBA and DBB landfall HDD pilot drilling will commence beyond the MHWS location from the 4th January 2021. A survey will then be carried out once each of the pilot drills has punched out onto sea bed to confirm accurate drill positions. The first survey is expected to be around 6th February subject to drilling progress.

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    Survey - Pilot Drill Multi Beam Echo Sounder (MBES) - Dogger Bank B South

    The MV Pulsar will conduct a Multi Beam Echo Sounder (MBES) survey of the pilot drilling head and the seabed at and around the horizontal directional drill (HDD) exit point of the Dogger Bank B export cable.

     

    The survey will be a one-day operation starting early morning. Weather limitations are:

    Wave height -0.5m, Wind Speed – 6m/s.

     

    MV Pulsar will have survey equipment deployed into the water, pole mounted on the vessel’s port side and will be travelling at 2-4kts during the survey operation. The vessel will display lights and shapes appropriate to the operation.

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    Survey - East Anglia HUB Offshore Wind Farm

    Scottish Power Renewables (SPR) has contracted Fugro GM Marine Limited (Fugro) to carry out a geophysical and geotechnical site investigation located east of Lowestoft, in the southern North for the proposed East Anglia HUB offshore windfarm site.

    The East Anglia HUB offshore windfarm site is split onto three zones: East Anglia ONE North (EA1N); East Anglia TWO (EA2); and East Anglia THREE (EA3).  In 2021, Fugro will be initially operating in EA1N only with operations commencing on 5th February 2021, with operations in EA2 and EA3 commencing subsequently.

     

    This Notice to Mariners will be updated and reissued periodically as additional vessels are planned to come on site.  For operations in 2021, current planning indicates a total of 8 vessels being on site between the period 5th February and 18th August 2021. It should be noted these dates are subject to change and the total number of vessels could increase.

     

    Vessel Call Sign Area Dates Duration
    Fugro Venturer C6CG3 EA1N - OWF & ECC 05/02/21 8 Weeks
    Fugro Frontier C6BH4 EA1N - OWF & ECC 12/04/21 3 Weeks
    Fugro Frontier C6BH4 EA2 - OWF & ECC 01/04/21 9 Weeks
    Fugro Frontier C6BH4 EA3 - OWF & ECC 11/03/21 3 Weeks

     

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    Seabed hazards following removal of Banff FPSO anchors & moorings

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

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

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

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    Gwynt y Môr Cable Repairs

    Briggs Marine Contractors (BMC) were contracted by Gwynt-Y-Mor OFTO to undertake a repair to the SSEC3 export cable due to a power core fault. The main works are completed. A small loop of cable remains unburied and raised above the seabed by approx. 2m

    A north cardinal buoy is now in position 75m north of the cable loop on the following location and display a very quick flashing white light.

    The marker buoy will remain in position until July 2022 when cable replacement works are planned to be completed by.

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    Deployment of 2 x Metocean Buoys - North of Cromer

    Partrac is to deploy two large metocean buoys (E03 and E13) at two separate locations approximately 18 miles northwest of Cromer and 28 miles north of Cromer in the southern North Sea 

    Partrac is to deploy two large metocean buoys (E03 and E13) at two separate locations approximately 18 miles northwest of Cromer and 28 miles north of Cromer in the southern North Sea 

     

    Once deployed, please maintain a 500m exclusion around each buoy.

     

    Deployment is estimated to be carried out over one day from the 5th May 2021, weather permitting.

     

    The deployments will be completed by the vessel Isle of Jura.

     

    The surface buoys will include: AIS; A day shape of yellow St Andrews Cross; radar reflector; and yellow navigation light.

     

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

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    Rig Movement - Deepsea Atlantic

    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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    Survey - Regional Survey (Ref: 1198)

    A 81 Days Regional Survey between the 15th April 2021 - 30th September. Using the vessels SW Amundsen Call sign: 5BXE2, Support Vessel MV Scorpio call Sign: ZDRF7 & Tess sign: YJUV8

    Company Vessels

    Towed Cable

    Length & Depth

    Duration Survey Block

    Shearwater GeoServices AS

    SW Amundsen

    5BXE2

    MV Scorpio

    ZDRF7

    Tess

    YJUV8

    8100m

    8m

    15/04/2021 - 30/09/2021

    For 81 Days

    210, 211

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    Geophysical Survey - Outer Thames Region

    From 31 May 2021 Titan Environmental Surveys Ltd are scheduled to undertake a geophysical survey in the Outer Thames region employing hull-mounted multibeam echosounder and towed sub-bottom profiler systems to acquire seabed data.

    The planned survey works will be completed by personnel from Titan Environmental Surveys Ltd on either the Titan Endeavour or the Titan Discovery. The work is expected to take approximately 24 hours in suitable weather conditions, although adverse weather conditions may mean that the total estimated survey time is spread over several days. The survey will be carried out along NNE – SSW orientated survey lines and some tie lines perpendicular to the main survey lines will also be surveyed.

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    Pipeline Activities - Arran Field

    A Pipeline Initiation System (an arrangement of anchors, chains and wires) has been installed within the Arran South 500m safety zone (installed on 28/09/20). Further vessel activity will be taking place in the area as below.

    DSV (Seven Falcon) – Spool & Umbilical Installation (Subsea 7) Arran Field Development - Infield 21/04/21 – Depart Field 03/05/21

    • 12” spool installation at Arran South
    • Hook up umbilicals at Arran South
    • Mattress protection at Arran South (12” spools and umbilicals)
    • Scoter spool removal at Shearwater
    • Umbilical crossing mattress installation at Shearwater
    • 12” spool install and mattressing at Shearwater

     

    DSV (Seven Falcon) – Pipeline Leak Test and Dewatering (Subsea 7) Arran Field Development - Infield 30/04/21 – Depart Field 21/05/21

    • 12” spool installation at Shearwater
    • Pipeline leak test at Columbus
    • Mattress Reinstatement
    • Dewater pipeline system at Arran North
    • Umbilical tie-ins at Arran South
    • 6” XT spools & TSCJ at Arran South
    • Tree spool leak test
    • OCH install at Arran South
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    Site and Pipeline Survey - Southwark Field (Ref: 1209)

    IOG is developing the Southwark Field, which involves the installation of a platform and a pipeline, to a connection to the existing Thames pipeline. This notice advises the survey activities being performed in advance of the installation.

    During April and May 2021 Titan Environmental, on behalf of IOG, will be performing surveys, primarily located at the platform location, with additional surveys along the pipeline route to the south:

    1. a pre-installation debris and bathymetric survey for the platform will cover an area approximately 700-metres x 700-metres, centred at the proposed Southwark location, as listed below, 
    2. a pre-installation debris and bathymetric survey of the proposed 24-inch pipeline between the proposed Southwark platform location and the Thames pipeline.

    The work will consist of using vessel mounted and towed sensors to scan the seabed, with no intrusive works.

    See detailed map on our bulletin website
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    Elgood to Blythe & Blythe to Thames, Pipeline and Umbilical Surveys

    This NtM relates to surveys being performed over the existing pipelines between the Elgood and Blythe Fields and the connection with the Thames Pipeline, in the UK sector of the southern North Sea.

    During April and May 2021 Titan Environmental, on behalf of IOG, will be performing surveys, primarily located within the +/-100 metre pipeline fishing exclusion/safety zones at the following locations:

    1. A pre-installation survey for an umbilical, which will be laid immediately adjacent to the 6-inch pipeline between Elgood and Blythe, 
    2. A survey of the existing 6-inch pipeline between Elgood and Blythe,
    3. A survey at the Blythe platform site, partly covered by the pipeline exclusion/safety zones,
    4. A survey of a site connecting the 12-inch Blythe pipeline to the 24-inch Thames pipeline connection site.

    The work will consist of using vessel mounted and towed sensors to scan the seabed, with no intrusive sensors.

     

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    Danger to Fishing - Claymore Scapa Template

    Fishing activity has been observed within a 500m Safety zone at Claymore Scapa template.

    Note fishing has been observed over subsea infrastructure including 40m L x 35m W x 11H Template structure that is within a 500m Safety zone.

     

    The safety zone is to protect all parties and is a legally restricted area that can only be entered under Special Circumstances;

                 1. To attempt to save a life or property,

                 2. Owing to bad weather ,

                 3. When in distress.

    All vessels including fishing vessels must not fish within or transit over the 500m safety zone.

    See detailed map on our bulletin website
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    Commencement of dredging in Area 531

    NRW and the MMO have issued new marine licences to Tarmac Marine Ltd and Hanson Aggregates Marine Ltd. Dredging is expected to commence from 1st June 2021.

    NRW and the MMO have issued Tarmac Marine Ltd and Hanson Aggergates Marine Ltd. new marine licenses to dredge marine aggregates from Area 531, located in the Severn Estuary.  Dredging is expected to commence, within a restricted dredge zone, no earlier than 1st June 2021.

    See detailed map on our bulletin website
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    Sean field to Bacton Pipeline stabilisation work.

    Sean field to Bacton (PL311) Pipeline freespan rectification in 20 locations by deposition of graded rock from a vessel fall pipe.

    Pipeline surveys identified twenty freespans along the PL311 Sean Field to Bacton pipeline that require remediation.  The freespans are located between KP 51.8 and KP 93.4 (Note: KP 0 is near the Sean Platform and KP 106 is near the shore approach at Bacton).  The cause of the freespans is expected to be scour caused by high seabed currents and the mobile nature of the sediment.  Graded rock (2ʺ - 8ʺ) will be accurately deposited from a fall-pipe vessel to fill in the spans and create rock berms up to the pipeline centreline that will support the pipeline and discourage future scour .  Prior to rock deposition, an as-found, pre-inspection survey will be undertaken to identify if there is any debris requiring removal.

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    Seagreen Safety Zone Application - Wind Turbine Generators

    Seagreen are submitting a safety zone application for their Wind Turbine Generators.Consultation is underway and anticipated to end 3rd June 2021. Further details are available in the safety zone application Seagreen at https://www.seagreenwindenergy.com

    SEAGREEN WIND ENERGY LIMITED - THE ENERGY ACT 2004

    NOTICE OF APPLICATION FOR SAFETY ZONE SCHEME DURING CONSTRUCTION AND MAJOR MAINTENANCE OF THE SEAGREEN OFFSHORE WIND FARM

    THE ELECTRICITY (OFFSHORE GENERATING STATIONS) (SAFETY ZONES) (APPLICATION PROCEDURES AND CONTROL OF ACCESS) REGULATIONS 2007 – STATUTORY INSTRUMENT 2007 NO 1948

     

    Notice is hereby given that Seagreen Wind Energy Limited (Seagreen) on behalf of Seagreen Alpha Wind Energy Limited (Company Number 07185533) and Seagreen Bravo Wind Energy Limited (Company Number 07185543), both having registered office at No. 1 Forbury Place, 43 Forbury Road, Reading has applied for consent from Marine Scotland as set out in the Energy Act 2004 and the Electricity (Offshore Generating Stations) (Safety Zones) (Application Procedures and Control of Access) Regulations 2007 (SI No 2007/1948) for safety zones as follows, for the previously consented Offshore Renewable Energy Installation known as the Seagreen Offshore Wind Farm, during the construction and major maintenance phases. The following safety zones are being applied for:

     

    • 500 metre (m) ‘rolling’ safety zones at each Wind Turbine Generator (WTG) and/or its substructures and foundations whenever construction is ongoing (as indicated by the presence of a construction vessel stationed at the structure).
    • 50 m pre-commissioning safety zones at each partial or complete WTG and/or its substructures and foundations, where construction is not ongoing up until the point of commissioning of the wind farm.
    • 500 m safety zone around any WTG and/or its substructures where major maintenance is being undertaken during the operational phase (as indicated by the presence of a major maintenance vessel stationed at the structure, where “major maintenance” is as defined in the Electricity Regulations 2007 (SI No 2007/1948) – further details are available in the application document as per the below).

    It is noted that this application is being made for the WTGs only – a separate application has been submitted for the offshore substation platforms. Further details are available in the safety zone application which is available for download direct from Seagreen at https://www.seagreenwindenergy.com, or alternatively from the Marine Scotland website at http://marine.gov.scot/ml/seagreen-alpha-and-bravo-offshore-wind-farms. Alternatively, a request to receive a hard copy may be made in writing to 1 Waterloo Street, Glasgow, G2 6AY. Any person wishing to make representations to the Secretary of State about the application should do so in writing to the Scottish Ministers, c/o Marine Scotland – Licensing Operations Team, Marine Laboratory, PO Box 101, Victoria Road, Aberdeen, AB11 9DB or MS.MarineRenewables@gov.scot, stating the name of the proposal and nature of their representations, not later than 28 days from the date, or latest date of this notice.

     

    Fair Processing Notice

    The Scottish Government’s Marine Scotland Licensing Operations Team (“MS-LOT”) determine applications for marine licences under the Marine (Scotland) Act 2010, the Marine and Coastal Act 2009 and section 36 consents under The Electricity Act 1989 (as amended). During the consultation process any person having an interest in the outcome of the application may make a representation to MS-LOT. The representation may contain personal information, for example a name or address. This representation will only be used for the purpose of determining an application and will be stored securely in the Scottish Government’s official corporate record. Representations will be shared with the applicant and/or agent acting on behalf of the applicant, any people or organisations that we consult in relation to the application, the Directorate of Planning and Environmental Appeals should the Scottish Ministers call a PLI and, where necessary, be published online, however personal information will be removed before sharing or publishing.

     

    A full privacy notice can be found at: https://www.gov.scot/policies/marine-and-fisheries-licensing/marine-licensing-operations-team-privacy-notice. If you are unable to access this, or you have any queries or concerns about how your personal information will be handled, contact MS-LOT at: ms.marinerenewables@gov.scot or Marine Scotland - Licensing Operations Team, Marine Laboratory, 375 Victoria Road, Aberdeen, AB11 9DB.

     

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    Decommissioning of the Brynhild pipelines at the Pierce field

    Please note that Lundin Energy Norway AS is carrying out offshore decommissioning works this summer in Blocks 23/22b, 23/22a and 23/27a of the Central North Sea.

    Decommissioning works on the UKCS will commence late May 2021 with disconnection and recovery of cut sections of a 10" production pipeline and an umbilical inside the FPSOs 500m safety zone. This in order to disconnect the Brynhild subsea manifold in Norwegian waters from the FPSO Haewene Brim located on the Pierce field in the UK. The works are expected to be completed by late July 2021.

     

    The following vessels will be active during the decommissioning campaign;

     

    Vessel name

    Task

    Call sign

    Period

    Maersk Forza

    Construction vessel

    OYWO2

    25.05.21 – 15.07.21

    Edda Freya

    Construction vessel

    LKRV3

    28.06.21 – 30.07.21

     

    Location Coordinates

    Brynhild field NCS                                            57° 29.317' N - 002° 18.039' E 

    Pierce Field Riser base manifold UKCS       57° 09.461' N - 002° 17.288' E

     

    For further information, please contact:

    Geir-Olav Fjeldheim, Lundin Energy Norway AS, Tel: +47 926 64 830 email: geir-olav.fjeldheim@lundin-energy.com

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    Isabella Project - Soil Investigations

    The Normand Flower (Call Sign: LAXN7) will be carrying out a Soil Investigations within the area noted below:

    The Normand Flower (Call Sign: LAXN7) will be carrying out a Soil Investigations within the area noted below:

    Survey is expected to start on 8th May and take approx. 2 weeks to complete.

    See detailed map on our bulletin website
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    West of Shetland – Power Reinstatement Project – Stage 3

    The Deep Arctic (Call Sign: C6XW3) will be carrying out Umbilical Repair activities BETWEEN the various locations noted below :

    The Deep Arctic (Call Sign: C6XW3) will be carrying out Umbilical Repair activities BETWEEN the various locations noted below :

    Start date = 11th May 2021

    Duration expected to be approx. 45 Days

    See detailed map on our bulletin website
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    West of Shetland – Power Reinstatement Project - Stage 2

    The Far Superior (Call Sign: LATJ7) will be carrying out Umbilical Repair Support & Testing activities BETWEEN the various locations noted below:

    The Far Superior (Call Sign: LATJ7) will be carrying out Umbilical Repair Support & Testing activities BETWEEN the various locations noted below :

    Start date = 13th May 2021

    Duration expected to be approx. 50 Days

     

    See detailed map on our bulletin website
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    Subsea Construction Activities at the Yme field

    On behalf Repsol Norge AS DeepOcean will perform subsea construction activities consisting of a new drilling template near the Yme Beta East, 11 km from the Mærsk Inspirer at the Yme Field. From the period of 10.05.2021 until 01.10.2021

    The subsea service company DeepOcean will perform a series of campaigns to prepare, install, commission and protect a new subsea drilling template on the Yme field development. The subsea activities will result in these subsea assets being temporarily exposed with a reduced level of overtrawlability. Trawling within a Caution area of radius 300m around 57°45' 21.669"N 004°22' 04.416"E(WGS 84) may potentially lead to injury, loss of trawling/ fishing equipment, and/or damage to DeepOcean and/or Repsol Norge AS assets.

     

    The location will be marked by a virtual AIS buoy, monitored by the Equinor Marin radar surveillance, and by the Guard vessel Esvagt Corona during this period. Equinor Marin, the Esvagt Corona and Yme Platform Mærsk Inspirer will attempt to contact fishing vessels approaching the aforementioned location.

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    Export Cable Installation - Triton Knoll Offshore Wind Farm

    Please be advised that vessels will be undertaking survey operations in the Triton Knoll Offshore Wind Farm export cable corridor.

    For further information: Lee Cornwall, Triton Knoll Offshore Wind Farm, Tel: +44 (0) 7384 807293, email: l.cornwell@tritonknoll.co.uk

    Triton Knoll Marine Coordination Centre, Mob Tel: +44 (0) 7384 807528, Tel: 0045 8213 6219, Email: tkmcc@smchse.com

    See detailed map on our bulletin website
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    Clump Weights for Mariner Well Load Relief System

    4 x clump weights for Mariner 8Y wellhead load relief system. Installation planned for early May

    4 x clump weights to be installed for Mariner 8Y wellhead load relief system around 5th May.

     

    This will be followed up with rig mooring pre-lay later in May for planned rig (West Hercules) arrival in June.

     

    All subsea components will be guarded by the Mariner Field ERRV until the rig arrives.  

    See detailed map on our bulletin website
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    Premier Oil Cross Asset Inspection Campaign - Rita & Hunter, Johnston

    Premier Oil UK Ltd (hereafter referred to as Premier Oil) is a subsidiary of Harbour Energy Plc. Premier Oil are planning to undertake a cross asset inspection campaign using the Subsea 7 chartered MMA Pinnacle ROVSV.

    Premier Oil are planning to undertake a cross asset inspection campaign using the Subsea 7 chartered MMA Pinnacle ROVSV. Fields to be inspected include; Rita & Hunter, Johnston.

     

    The survey will last 72 days in total, however each site to be surveyed will last 2-20 days, depending on the location and any operational delays e.g. weather.

     

    The MMA Pinnacle is scheduled to mobilise Saturday the 1st May 2021 to first survey location; Rita & Hunter.

     

    Start date: 1st May 2021 and end date of 7th August 2021

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    Premier Oil Cross Asset Inspection Campaign

    Premier Oil UK Ltd is a subsidiary of Harbour Energy Plc. Premier Oil are planning to undertake a cross asset inspection campaign using the Subsea 7 chartered MMA Pinnacle ROVSV. In addition, two wrecks within the Catcher area will be visually inspected.

    Premier Oil are planning to undertake a cross asset inspection campaign using the Subsea 7 chartered MMA Pinnacle ROVSV. Fields to be inspected include; B-Block (encompassing Balmoral, Stirling, Glamis, Blair, Brenda and Nicol), Caledonia, Nelson, Huntington, Catcher (encompassing Burgman, Varadero and Wreck sites).

     

    The survey will last 72 days in total, however each site to be surveyed will last 2-20 days, depending on the location and any operational delays e.g. weather.

     

    The MMA Pinnacle is scheduled to mobilise Saturday the 1st May 2021 to first survey location; Rita & Hunter.

     

    Start date: 1st May 2021 and end date of 7th August 2021

    See detailed map on our bulletin website
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    Premier Oil Cross Asset Inspection Campaign - Solan Field

    Premier Oil UK Ltd (hereafter referred to as Premier Oil) is a subsidiary of Harbour Energy Plc. Premier Oil are planning to undertake a cross asset inspection campaign using the Subsea 7 chartered MMA Pinnacle ROVSV.

    Premier Oil are planning to undertake a cross asset inspection campaign using the Subsea 7 chartered MMA Pinnacle ROVSV. in the Solan Field

     

    The survey will last 72 days in total, however each site to be surveyed will last 2-20 days, depending on the location and any operational delays e.g. weather.

     

    The MMA Pinnacle is scheduled to mobilise Saturday the 1st May 2021 to first survey location; Rita & Hunter.

     

    Start date: 1st May 2021 and end date of 7th August 2021

    See detailed map on our bulletin website
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    Deployment of Scientific Equipment - West of Loch na Keal, Isle of Mull

    The Scottish Salmon Company (SSC) will be carrying out a Hydrographic survey in April in the waters west of Loch na Keal, Isle of Mull. Proposed works are planned to start on 28th April 2021 for approx. 110 days using MV Maid of Ulva Call sign: MCHE6.

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    Safety Zone Now Active - Elgood Wellhead

    Due to the installation of oil & gas equipment on the seabed on 14 April 2021, the below safety zone is now active.

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    Rig - Borgland Dolphin

    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

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

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    Rig Move - Transocean PBLJ - to MacCulloch EDC

    Chrysaor (a Harbour Energy company) plan to move the Transocean PBLJ drilling rig from the MacCulloch West Drill Centre (WDC) to the East Drill Centre (EDC) to continue the MacCulloch well abandonment campaign.

    The PBLJ is currently carrying out P&A operations at the MacCulloch West Drill Centre (WDC). During early May 2021 the rig will be towed to the East Drill Centre (EDC) to P&A the E1 subsea well.

     

    An attendant vessel will guard the pre-laid moorings until rig arrival.  Moorings are up to ~2300m from rig centre. Following rig arrival there will be a dedicated ERRV on location monitoring the surrounding area. 

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    Survey - Alvheim 4D towed streamer survey (ABP21002)

    Aker BP ASA is conducting a 4D towed streamer acquisition with PGS Geophysical AS. The vessels on the field will be Ramform Vanguard and Sanco Chaser. This is a cross border seismic survey, with the main part of the survey on the Norwegian side.

    AkerBP ASA is conducting a 4D seismic survey over the Alvheim field. It is anticipated that the UK section will take in total a maximum of six days to complete, but not acquired in one go. The Survey Area at Alvheim will cover 50 square kilometres in UK waters. The Greater Work Area will cover 180 square kilometres in UK water.

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    Grace Hopper Subsea Fibre Optic Cable System - Route Clearance / Pre-Lay Grapnel Run Activities

    OSV Nautilus call sign: EAOL will be carrying out Route Clearance / Pre Lay Grapnel Run, on behalf of SubCom LLC., across the pathway of the Grace Hopper Subsea Fibre Optic Cable System route in the UK EEZ. From 24 April 2021 to 30 July 2021

    The operations will be carried out in the UK EEZ from 24 April 2021 to 30 July 2021. However, please note the start date and the duration of the activity is weather dependant.

     

    OSV Nautilus will be towing stern deployed equipment and will be restricted in manoeuvrability. All vessels operating within this area are requested to keep their distance, maintaining at least the 500m safety zone around the vessel, and pass at minimum speed to reduce vessel wash.

     

    Throughout operations, the vessel will be displaying the appropriate lights and shapes as required under the COLREGS Rule 27(b).  

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    Survey - Evelyn Site Survey (Ref: 1125)

    A 1 day survey 50m around proposed anchor positions and anchor cables where they extend from the previously surveyed at the Evelyn Site. Using the vessel Noordhoek Pathfinder Call sign: PBYN from 23rd April 2021until 29th May 2021.

    Company Vessels

    Towed Cable

    Length & Depth

    Duration Survey Block

    N-Sea Offshore Ltd

    Noordhoek Pathfinder

    PBYN

    N/A

    23/04/2020 - 29/05/2021

    For 1 Day

    21

    See detailed map on our bulletin website
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    Snagging Hazards - Decommissioned Murchison jacket footings - Fishing Advisory Zone

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

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    Unmanned Bathymetry Surveys - NEP Project

    3 XOcean Unmanned Vessels undertaking hull mounted bathymetry surveys. Vessels are 4.5m x 2.2m x 2.2m and are fully controlled via satellite 24 hours a day. All vessels will be using Hartlepool and Grimsby to transit in and out of for bad weather.

    An unmanned survey operation to collect hull mounted bathymetry data using 3 vessels. The vessels are all fully controlled 24 hours a day using satellite communications. During periods of bad weather XOcean will use Hartlepool or Grimsby to transit to for shelter. The area of operation will cover the project area at Endurance and two proposed pipeline route corridors.

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    Well Guideposts - Schiehallion Loyal Field

    The LW17 well within the Schiehallion Loyal field has been left with 4 Guideposts attached to the structure which extend approx. 7.5m above seabed. The well is within the Loyal 500m safety zone but the guideposts will pose a significant hazard to fishing.

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    Survey - North Fall Offshore Wind Farm (Proposed)

    North Falls Offshore Farm Limited has contracted Fugro GB Marine Limited to carry out a geophysical & environmental site investigation in the North Sea for the proposed Windfarm (NFOW) site using Fugro Mercator callsign: C6DU5 from 10th May for 8-9 weeks

    The North Falls Offshore Wind Farm site is located to the east of Felixstowe and bordering the Greater Gabbard and Galloper existing wind farms

     

    Fugro Mercator - Offshore Geophysical Investigation

     

    The geophysical operations at the North Falls site are expected to be carried out from the Fugro Mercator call Sign: C6DU5 from 10th May 2021 for approximately 8-9 weeks. Fugro Mercator will be conducting operations across the Main Array and Export Cable Route areas >10m LAT.

     

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

     

    A continuous listening watch will be conducted on VHF Channel 16.

    Survey operations will be conducted on a 24-hour basis  

    Curtis Marshall - Environmental Investigation

     

    The environmental operations at the North Falls site are expected to be carried out from the Curtis Marshall call sign: 2HWN3 from 1st July 2021 for approximately 7 days. Curtis Marshall will be conducting operations across the Main Array and Export Cable Route areas both offshore and nearshore.

    Please note that the exact start and finish date will be dependent on the prevailing weather conditions and work progress.

     

    As the Curtis Marshall will be deploying equipment astern of the vessel, the vessel will require large turning circles and will be restricted in her ability to manoeuvre. All vessels operating within this area are requested to keep their distance, maintaining at least the 1,000m safety zone around the survey vessel, and pass at minimum speed to reduce vessel wash.

    A continuous listening watch will be conducted on VHF Channel 16.

    Survey operations will be conducted on a 24-hour basis  

     

    Fugro Seeker - Nearshore Geophyscial Investigation

     

    The geophysical operations on the North Falls export cable route from the 10m LAT contour inshore to the potential landfall, are expected to be carried out from the survey vessel Fugro Seeker call sign: 2HCS2 from 15th May 2021 for approximately 10 weeks.

    Please note that the exact start and finish date will be dependent on the prevailing weather conditions and work progress.

     

    As the Fugro Seeker will be towing survey equipment the vessel will require large turning circles and will be restricted in her ability to manoeuvre. All vessels operating within this area are requested to keep their distance, maintaining at least the 500m safety zone around the survey vessel, and pass at minimum speed to reduce vessel wash.

     

    A continuous listening watch will be conducted on VHF Channel 16.

     

    Survey operations will be conducted on a 12-hour basis.

     

     

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    Havhingsten Cable - surface laid cable

    Please be advised that there are three areas of surface-laid cable, pending rock placement works.

    Please be advised that the remaining post-lay burial (PLIB) works of the Havhingsten fibre optic telecommunication cable system have now been completed in the Irish Sea, but there are three areas of surface-laid cable which are pending rock placement works.

     

    There is a maximum of 25m of cable surface laid with Uradact protection either side of the crossings listed below. Rock protection works will be carried out during the second half of 2021. It is advised that extra care is taken when vessels are operating near the areas and that no vessel should trawl within 0.25 nautical miles from the listed coordinates prior to rock placement. The rock berms will be over trawlable and in-line with industry standards.

     

    Rock Placement Location Name

    Latitude

    Longitude

    Western HVDC (S1.5)

    53 ° 45.9867' N

    003° 48.9137' W

    Western HVDC (S1.2)

    53° 54.7007' N

    004° 58.3552' W

    Western HVDC (S1.4)

    53° 53.8396' N

    004° 34.1792' W

     

    For further information please contact the Fisheries Liaison Officer (FLO) / Fishing Industry Representative (FIR) numbers:

     

    IoM Onshore FLO

    Guy Sutton:                        rgsutton@outlook.com – 07624428332

     

    FIR

    Tom Watson:                     tomwatsonfleetwood@btinternet.com – 07903 173624

     

    FLO (MarineSpace)

    Bethan Owens:                 bethan.owens@marinespace.co.uk – 07833 557808

    Claire Griffiths:                  claire.griffiths@marinespace.co.uk – 07498 550 586

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    Geophysical Survey - Kingmere

    ABPmer will be conducting geophysical and drop-down video survey operations in and around the Kingmere MCZ in May - July 2021.

    Geophysical Survey

    ABPmer will be conducting a geophysical survey in and around the Kingmere MCZ in May 2021. It is expected that survey operations in the area will commence on w/c 17th May for a period of 6 days. The survey will be conducted using the ‘Wessex Explorer’ using a vessel mounted multibeam echosounder.  Multibeam data will be acquired in nine small survey areas as detailed below. ABPmer completed these works successfully in previous years and understand the importance of working with the fishing industry and as such will always work around fishing gear and activity that they are made aware of.

     

    Drop-Down Video Survey

    Three one-day drop-down environmental video surveys will be conducted within the same survey areas. These will be conducted on w/c 31st May, w/c 5thJuly and w/c 19th July. The video will be towed up to 100m astern of the Littlehampton Harbour Board vessel, ‘Erica’.

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    Eastern Link - Marine Survey Operations

    Marine Survey Works for the Eastern Link Project.These works precede the installation of a HVDC electricity transmission link from the East coast of Scotland (Sandford Bay, Peterhead) to the East coast of England (South of Bridlington/ Flamborough Head).

    The marine survey works are being carried out by Next Geosolutions UKCS Ltd. on behalf of National Grid Electricity Transmission Plc and Scottish Hydro Electric Transmission Plc.

     

    The marine survey activities are planned to commence at Sandford Bay and close to Peterhead from the 20th April 2021. Upon completion of the Nearshore Marine Survey at Peterhead the vessel will transit to Bridlington to complete the Nearshore Marine Survey at Bridlington. Works will continue along the offshore route until August 2021. The marine survey works covered by this NtM are to be conducted by three survey vessels, divided into the following activities, as indicated:

     

    Date Activity Vessel Call Sign
    20 April 2021 Nearshore Marine Survey Peterhead SV Humber Guardian 2ENC3
    May 2021 Nearshore Geotechnical Survey Peterhead MultiCat Forth Warrior 2JHR8
    20 April - Aug 2021 Offshore Marine Survey, Peterehead to Bridlington MPSV Ievoli Cobalt IBOK
    April / May 2021 Nearshore Marien Survey Bridlington SV Humber Guardian 2ENC3
    May 2021 Nearshore Geotechnical Survey Bridlington MultiCat Forth Warrior 2JHR8

     

    The Nearshore works are to be conducted West, of point AC6, Longitude 1° 43.5’W at Peterhead and West of point AC61, Longitude 0° 03.7’W South of Flamborough Head, Bridlington, reference Figures 1 and 2 overleaf. All vessels shall pass at a safe speed and distance, whilst fishing vessels shall remain at a safe distance (approximately 500 meters) (COLREGs Rule 16 & 18) from the areas identified during marine survey operations. The aforementioned survey vessels will be restricted in her ability to maneuver and shall deploy towed sensors during geophysical survey operations only. The survey vessels will monitor VHF Channel 16 at all times. Mobile contacts for the vessels are listed at the end of this NtM.

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    Fishing Hazard - Dons Fields Decommissioning Works

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

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

     

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

    See detailed map on our bulletin website
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    Survey - Seabed Debris Garten Drilling Location (Ref: 1152)

    A 1 day Seabed debris survey covering the anchor pattern of a semi-submersible rig at the Garten drilling location. Using the vessel Fugro Galaxy Call sign: C6YY4

    Company Vessels

    Towed Cable

    Length & Depth

    Duration Survey Block

    Fugro GB (North) Marine Ltd

    Fugro Galaxy

    C6YY4

    N/A

    07/11/2020 - 30/09/2021

    For 1 Day

    9/13,14,18

    See detailed map on our bulletin website
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    Survey - Pipeline & Umbilicals (Ref: 1213)

    A 99 Day Pipeline & Umbilical survey, Balmoral and its tied-back fields: Stirling, Glamis, Blair, Brenda, Nicol, Beauly and Burghley. Using Vessel MMA Ocean Pinnacle Call Sign: 9WNM1. From the 1st May until 7th August 2021.

    Company Vessels

    Towed Cable

    Length & Depth

    Duration Survey Block

    Subsea 7

    MMA Pinnacle

    gWNM1

    N/A

    01/05/2021 - 07/08/2021

    For 99 Days

    16, 15

    See detailed map on our bulletin website
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    Tolmount Development Area

    Notice to alert sea users to the ongoing drilling activity of the Valaris 123 Jackup Drilling Rig at the Tolmount Platform in Block 42/28d .

    The Tolmount minimum facilities platform has been installed on behalf of the Tolmount Development Project (comprising Premier Oil UK Limited, ODE Asset Management Limited and Humber Gathering System Limited (HGSL)) in UKCS Block 42/28d and an ERRV remains on location in field. 

     

    The Valaris123 Jackup Drilling Rig is in position over the Tolmount platform, with drilling operations underway.  Drilling activity is planned for approximately 12 months (subject to further Kingfisher bulletins). NW well is now completed and the Valaris 123 has skidded to the SE well slot to recommence drilling operations.

     

    Please note that an Offshore Development Area has also been requested for the Tolmount Development Project work.

    See detailed map on our bulletin website
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    Rig - Stena Spey

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

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    Rig - Transocean Equinox

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

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    Rig - West Bollsta

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

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    Rig - Maersk Integrator

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

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    Rig - Maersk Invincible

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

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    Dropped steel cage/basket (West of Shetland)

    A steel cage has been dropped from a fishing vessel following snagging and partial recovery. The cage is metal in construction and appears to be from the oil & gas industry. Dimensions: 1.7m x 1.7m x 1.6m (height). Weight: 132kg (in water); 575kg (in air)

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    Deployment of Buoy - Sound of Gigha

    Mariners are advised that, on or about 27 April 2021, a new buoy station will be established, with the undernoted characteristics: Quick (3) every 10 seconds. Black with yellow Horizonal Band, East Cardinal Buoy.

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    Exposed Wellheads - Arran Field

    Due to storm damaged the Ocean Endeavor has left the Arran Field for repairs. In the absence of the rig, a guard vessel will be located at Arran to protect the two exposed wellhead structures that remain.

    Arran North 2 is completed but does not yet have the Xmas Tree installed.

     

    Arran North 1 will be left with the rigs blow out preventer installed on the wellhead as it will not be possible for the rig to recover it before departure.

    See detailed map on our bulletin website
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    Survey - Alexandra, Victor Debris Clearance (Ref: 1164)

    A 5 Day Gardline Alexandra, Victor Debris Clearance Survey. Using Vessel MV Ocean Reliance Call Sign: HP6391 From the 15th January until 31st July 2021

    Company Vessels

    Towed Cable

    Length & Depth

    Duration Survey Block

    Gardline Limited

    MV Ocean Reliance

    HP6391

    N/A

    15/01/2021 - 31/07/2021

    For 2 Days

    49

    44

    See detailed map on our bulletin website
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    NW Schooner Subsea Well - Missing Debris Cap

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

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

    See detailed map on our bulletin website
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    Light Well Injection Project : Ellon/Forvie/Jura

    The Well Enhancer (Call Sign: 2ARS4) will be carrying out a Light Well Intervention (LWI) programme at the Ellon / Forvie / Jura locations noted below:

    The Well Enhancer (Call Sign: 2ARS4) will be carrying out a Light Well Intervention (LWI) programme at the

    Ellon / Forvie / Jura locations noted below:

     

    Start date = 15th April 2021

    Duration expected to be approx. 57 Days to 11th June 2021

    See detailed map on our bulletin website
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    Safe Caledonia at Elgin PUQ

    The Flotel Safe Caledonia is alongside ELGIN PUQ – within 500m zone.

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

    See detailed map on our bulletin website
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    Unexploded Ordnance & Boulder clearance - Seagreen Offshore Windfarm

    An unexploded ordnance and boulder clearance geophysical survey will take place within the Seagreen Offshore Windfarm site boundary.

    The survey vessel, Geo Ranger will utilise towed array equipment with side scan sonar, sub bottom profiler and magnetometer to conduct the survey of all 114 Wind Turbine Generatorpositions and 1 Offshore Platform location within the Seagreen site boundary.The survey vessel is expected to arrive at site on or around Sunday the 21st of March and remain until August 21, weather dependant.

    See detailed map on our bulletin website
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    Rig - Scarabeo 8

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

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    Rig - Deepsea Yantai

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

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    Rig Movement - Noble Hans Deul

    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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    Dive Support Vessel Polaris Operations - Hewett Field

    Dive Support Vessel Polaris, mobilisation from Great Yarmouth and saturation diving works at x2 Subsea Wells and at the jacket base of 52/5A Platform within Hewett Field.

    Subsea Wells Operations - 48/30-15z Subsea Well :  Well Preparation for Flushing /  Preparation for Well Plugging & Abandonment 

    - 48/30-8 Subsea Well :  Well Preparation for Flushing /  Preparation for Well Plugging & Abandonment 

     

    Platform PL83 Pipeline Operations

    - PL83 Pipleine Mattress & Spool Removal (35-50mts) from Jacket Base out to circa 50mts in preperation of Rig arrival.

     

    All Saturation Diving and ROV works inside 500mtr zone of each asset safety zone. 

     

    Vessel will transit within Hewett Field from location to location during the course of the saturation diving works.

    See detailed map on our bulletin website
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    Brae Bravo Decommissioninig

    Decommissioning and removal of the Brae Bravo Platform will be undertaken throughout 2021. Removal of topside modules and flare bridge will be undertaken ahead of removal of the main jacket in 2022.

    Decommissioning and removal of the Brae Bravo Platform will be undetaken throughout 2021. Removal of topside modules and flare bridge will be undertaken ahead of removal of the main jacket in 2022.

     

    Vessels will be operating near to and within the 500m safety zone as indicated.

     

    Thialf

    The Thialf will be alsongside the Brae Bravo platform between the 15th of April 2021 and the 24th of May 2021.

     

    Bylgia

    The Bylgia will enter the worksite between the 1st of May 2021 and 3rd of may 2021.

     

    Sleipnir

    The Sleipnir will be alsongside the Brae Bravo platform between the 15th of April 2021 and the 24th of May 2021. The Sleipnir will then return to the field to continue removal works circa 15th July2021.

     

    See detailed map on our bulletin website
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    Buzzard Field - Pipeline bundle tow and installation

    A pipeline bundle will be launched, towed to and installed in the Buzzard field.

    A pipeline bundle will be transported using the Off Bottom Tow Mode (OBTM) and Controlled Depth Tow Method (CDTM). The bundle will be launched from Sinclair's Bay North of Wick and towed to the installation area suspended between one or more lead tugs and a trail tug and accompanied by a guard vessel and ROV support vessel.

    See detailed map on our bulletin website
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    Rig Move - Maersk Resolve

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

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    Rig - Seafox 4

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

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    Rig Move – Ensco 92 to Victor Field

    Chrysaor plan to move the Ensco 92 Jack-up drilling rig from the Viking field location to the Victor field location perform abandonment operations on the Victor JM 49/17-11 development well.

    Destination: Victor JM 49/17-11 development well 53° 21' 03.22" N 2° 17' 43.46" E Throughout well abandonment operations there will be a dedicated ERRV on location monitoring the surrounding sea area

    See detailed map on our bulletin website
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    Inter Array cable Termination and testing

    Please be advised that Moray Offshore Windfarm (East) Limited (Moray East) are carrying out Inter Array Cable Testing and Termination Works within the bounds of site 1.

    Inter Array Cable Termination and Testing.

     

    Personnel and equipment for these works will be based on the Offshore Support Vessel, Siem Day. Personnel and equipment will be transported by Siem Day between OSPs and WTGs. Deep Cygnus and Siem Day will both be completing Testing and Termination works on the cable routes identified in Figure 3.

     

    Siem Day will be restricted in their ability to manoeuvre during transfer of personnel and equipment to and from the OSPs and WTGs.

     

    The overall work scope will be carried out in 2 campaigns – Campaign 1 commencing 11/11/20 to 23/01/21, now complete, and Campaign 2 commenced 24/02/21 and is scheduled to be completed on 11/06/21

    See detailed map on our bulletin website
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    Dogger Bank B Geophysical Survey

    The survey vessel, Fugro Venturer, will conduct a geophysical survey at the Dogger Bank B wind farm (DBB) array site

    Fugro Venturer, will conduct a geophysical survey at the Dogger Bank B wind farm (DBB) array site in the Southern North Sea, between 4th April 2021 and approximately 25th May 2021. Survey operations will be continuous, 24 hours a day, the vessel towing subsea sensors up to approximately 100m behind the vessel. During operations the vessel will be restricted in its ability to manoeuvre and will display the appropriate day shapes and lights.

     

    The Fugro Venturer will be surveying prescribed survey lines, which will require large turning circles. It is therefore requested that all vessels maintain a minimum 2,000m separation distance from the survey vessel and pass at reduced speed.

    See detailed map on our bulletin website
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    Snagging Hazard - Dropped Object Clump Weight (360kg)

    The dropped object is a clump weight (360kg). This is part of the DP taut wire system. From C10 the clump weight lays 162m north of the structure. The object rests 8m east of C10-C11 RPL.

    JSA and Task plan are being compiled for a recovery with vessel crane and ROV intervention.

    See detailed map on our bulletin website
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    Snagging Hazard - Dropped Object Weight 115kg

    Wireless telemetry basket containing measuring 1.4 m x 1.4 m and weighs 115 kg when submerged.

    As part of the initial drilling operations in 2019, the wellhead assembly was fitted with a cap containing a transponder for the relaying of monitoring data from downhole gauges and a basket was placed on the seabed adjacent to the well containing associated wireless telemetry equipment. 

     

    It has now been observed that both the cap and the basket are no longer present. 

     

    PFML are on location conducting an ROV based visual inspection of the suspended Well 205/26b-14 in the Lincoln field west of Shetland.  The Olympic Taurus arrived at the well location and deployed the ROV for inspection at the seabed.  On inspection neither the cap or basket were present.

     

    No instances of snagged fishing gear or other debris have been identified on the wellhead. 

     

    The risk is that trawled gear may snag on the basket and cause damage.  It is expected that he basket is too light to trap the vessel and cause any significant threat.  The cap is smaller, so there is a risk the nets may lift the cap to surface and cause a risk to personnel on the vessel.  However, as the cap is now off the wellhead, it is likely to be sitting flush with the seabed and is unlikely to be picked up by gear working in this area, as it is typically designed to bounce over the top of seabed obstacles (like the many boulders in the area). 

     

     

    The vessel and ROV has conducted a search around the well, 250 m x 250 m grid with 20m line spacing, and not identified the objects.

     

    PFML intend to go back to abandon the well this year, which would include an as left survey, so further efforts will be made then to locate and recover.  If not found, no other action will be taken.

    See detailed map on our bulletin website
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    Rig Movement - Seajacks Leviathan

    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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    Rig Movement - Safe Caledonia

    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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    Rig Movement - Seafox 2

    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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    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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    Thames Pipeline PL370 - Inspection

    During April and May 2021 Titan Environmental, on behalf of IOG, will be performing a survey along the Thames pipeline to determine burial.

    The work will consist of using the vessel Titan Discovery, equipped with vessel mounted and towed sensors to scan the seabed, over and on either side of the pipeline, with no intrusive works.

    See detailed map on our bulletin website
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    Safe Boreas accommodation vessel in Buzzard field

    The Safe Boreas accommodation vessel is mobilising to the Buzzard field on April 18th 2021 for a maximum of 190 days

    The Safe Boreas accommodation vessel is being located into the Buzzard field for the turnaround period, beginning on the 18th April 2021. The accommodation vessel will use dynamic positioning and will be located within the 500 m exclusion zone of the Buzzard Platform for up to 190 days. The Safe Boreas will be linked to Buzzard QU Platform via a gangway interface.

    See detailed map on our bulletin website
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    Kincardine Offshore Windfarm - Development

    Horizon Artic call sign: CHA2033 will shortly begin a campaign of moorings installation at the Kincardine offshore wind farm.

    Additional work will be continuing for the commissioning of the turbine, requiring regular crew boat transfers on a daily basis.

     

    The floating wind turbine KIN-03 complete with assembled wind turbine is moored in its operational location. 

     

      Location Light Sound Signal
    North Corner (with Turbine C1) 56°59.356’N   001°51.983’W Yellow every 5 seconds -
    South East Corner (C2) 56°59.340’N  001°52.037’W Yellow every 5 seconds Morse “U” every 30 seconds
    South West Corner (C3) 56°59.322’N  001°51.984’W  Yellow every 5 seconds -
    KIN-03-ML1 Anchor As-Built 56°59.587’N  001°51.749’W N/A N/A
    KIN-03-ML2 Anchor As-Built 56°59.338’N  001°52.518’W N/A N/A
    KIN-03-ML3 Anchor As-Built  56°59.048’N  001°51.709’W N/A N/A

     

    Horizon Artic call sign: CHA2033 will shortly begin a campaign of moorings installation at the Kincardine offshore wind farm.

     

    Estimated Arrival of the Horizon Arctic in the field will be 01/04/2021 and the duration of the installation will be about 7 days. The works expected are as follows:

    KIN-02 56°59.835'N  01°52.428'W
    KIN-05 57°00.632'N  01°50.861'W
    KIN-01 57°00.318'N  01°52.870'W

     

    Cable Guard Vessel: MV Fisher Boys FR54  call sign: MXHY7

     

     

    See detailed map on our bulletin website
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    Survey - Dogger Bank B Windfarm

    The Fugro Venturer is due to undertake a Geophysical survey at the proposed Dogger Bank B windfarm location in the Southern North Sea, 193 kilometres East of Newcastle, between 4th April 2021 and approximately 25th May 2021.

    Survey operations shall be conducted 24 hours a day and the vessel shall tow subsea sensors approximately up to 100m behind the vessel.  During operations the vessel will have restricted manoeuvrability. The Fugro Venturer will be surveying prescribed survey lines, which will require large turning circles, therefore, it is requested that all vessels operating within this area keep their distance, maintaining at least the 2,000 m exclusion zone around the vessel and pass at reduced speed.

    See detailed map on our bulletin website
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    Survey - Catcher Area (Ref: 1203)

    A 42 Day Catcher Area Survey between the 17th April 2021 - 29th May 2021. Using the vessels PGS Ramform Hyperion call sign: C6DB4, Thor Omega call sign: OZ2065, Groen Miranda call sign: 6CR7

    Company Vessels

    Towed Cable

    Length & Depth

    Duration Survey Block

    Petroleum Geo-Services

    PGS Ramform Hyperion

    C6DB4

    Thor Omega

    OZ2065

    Groen Miranda

    6CR7

    6650m

    5m

    17/04/2021 - 29/05/2021

    For 42 Days

    28

    See detailed map on our bulletin website
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    Survey - East Orkney Site Survey (Ref: 1206)

    A 6 Day East Orkney Site Survey between the 9th April 2021 - 30th September. Using the vessel Geo Ocean III Call sign: LXGP.

    Company Vessels

    Towed Cable

    Length & Depth

    Duration Survey Block

    GEOxyz UK

    Geo Ocean III

    LXGP

    150m

    3m

    09/04/2021 - 30/09/2021

    For 6 Days

    6,7,12,13,14

    See detailed map on our bulletin website
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    Survey - Leman Pipelines (Ref: 1208)

    A 5 Day Leman Pipelines Survey between the 15th April 2021 - 31st May. Using the vessel MV Ocean Reliance Call sign: HP6391.

    Company Vessels

    Towed Cable

    Length & Depth

    Duration Survey Block

    Gardline Limited

    Ocean Reliance

    HP6391

    N/A

    15/04/2021 - 31/05/2021

    For 5 Days

    49

    See detailed map on our bulletin website
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    Dredging - Area 457

    Dredging will commence on the 15/08/2021 for a period of 10 weeks in the call off zone within Marine Aggregate Licence Area 457 (MA234).

    Dredging within Marine Aggregate Licence Area 457 is restricted to two active zones and a third call off zone. In order for dredging to occur within the third call off zone, at least 6 weeks notice is required prior to dredging can commence.

     

    In order for effective implementation and notification, this notice provides sufficient time prior to dredging is scheduled to commence. Dredging is sheduled to commence on the 15/08/2021 for a period of 10 weeks. 

    See detailed map on our bulletin website
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    Survey - Hornsea Four Offshore Windfarm

    Hornsea Four Offshore Windfarm will be carrying out offshore geophysical survey using the vessel Northern Storm call sign: MISA7 from 6th April until end of July 2021.

    Survey completion is anticipated by the end of July 2021. The full scope of the works is anticipated to take 90 days to complete, with approximately 45 days duration surveying the proposed export cable corridor and 60 days duration surveying the proposed windfarm array areas.

     

    The vessel Northern Storm call sign: MISA7 will be utilised for this survey. A local scout vessel is also contracted to reduce potential for static fishing gear interactions.

     

    The survey area will be covered using a full geophysical survey spread including towed equipment. It is requested that all vessels operating within the area keep a safe distance (at least 500m) and pass at minimum speed/reduced wash.

     

     

    See detailed map on our bulletin website
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    Rig - West Hercules

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

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    Rig - Haeva

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

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    Rig - Safe Zephyrus

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

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    Export Cable Installation - Hornsea Project Two

    Ørsted will be commencing export cable remedial works where the cable is currently being wet-stored, as part of the export cable installation scope for the Hornsea Project Two Offshore Wind Farm.

    Mariners are advised that the Titan Endeavour is mobilising to site to carry out survey works that will continue intermittently through 2021.

     

    Activities are being carried out on the Hornsea Project Two Offshore Wind Farm export cable route. Mariners are advised that MaxSea and Olex plotter files of the proposed works area can be provided by the Project’s Commercial Fisheries Advisors at Brown and May Marine Limited and the Project’s onshore fisheries liaison.

     

    Export Cable Installation

    Please be advised that Boskalis will be undertaking cable remedial works on or around 15th March 2021 with the BokaBarge 82, Voe Vanguard, Lingestroom and Barney at the location where the cable is currently being wet stored. In addition to this, the Titan Endeavour will be mobilising to site shortly to carry out survey works that will continue intermittently through 2021.

     

    Boskalis are temporarily wet storing a cable at the RCS and the OSS. A guard vessel will be present, subject to safe weather conditions, whilst the cable is wet-stored but it is advised that mariners maintain a safe clearance. 

     

    Note that the vessels will have limited manoeuvrability, some vessels will be operating on anchors, and it is requested that all vessels operating near the vessels maintain a safe distance (at least 500m) and pass all vessels at minimum speed.

     

    Export Cable Corridor Boulder Clearance

    Please be advised that Hornsea Project Two will be continuing boulder clearance within the export cable corridor using the Atlantic Tonjer call sign: HOBO on or around 25th March 2021.

     

    The works will continue intermittently through to Q2 2021. This Notice will be updated and re-issued when works are completed.

     

    Note that the vessels will have limited manoeuvrability and it is requested that all vessels operating near the vessels maintain a safe distance (at least 500m) and pass all vessels at minimum speed.

     

    Array Cable Seabed Preparation & Installation

    Ørsted will be commencing pre-lay surveys and seabed preparation for array cable installation with the Simar Esperanca and rock deployment with the Flintstone on or around 21st March 2021, shortly followed by array cable installation itself on or around 15th April 2021. In addition to this, Seaway Offshore Cables (SOC) and Sulmara may be trialling an autonomous survey vessel within the Hornsea Project Two array area which will be supported by a dedicated support vessel, queries related to this scope should be directed to SOC / Sulmara.

    Works will be continual and intermittent throughout this period. The works will be undertaken by a number of vessels at different times according to the Project schedule. This Notice will be updated and re-issued when works are complete.

    Note that the vessels will have limited manoeuvrability and it is requested that all vessels operating near the vessels maintain a safe distance (at least 500m) and pass all vessels at minimum speed.

     

     

    See detailed map on our bulletin website
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    Rosebank Field Metocean Monitoring Buoys

    4 x metocean monitoring buoys in the Rosebank Field area 1 x surface wave buoy 3 x subsurface buoys at 40m, 160m, and 630m

    4 x Metocean monitoring buoys will be in place at the Rosebank Field until approximately Q4 2021.

    3 of these buoys are subsurface with only the wave monitoring buoy on the surface.  

     

    The wave buoy is painted yellow, equipped with solar panels, flashlight, active and passive radar reflectors. The active radar reflector responds to interrogating X-band radar (9.3-9.5 GHz)

    See detailed map on our bulletin website
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    Survey - West of Gigha

    The Scottish Salmon Company (SSC) will be carrying out a Hydrographic survey in March, West of Gigha. The proposed works are planned to start on 17th March 2021 and will last approximately 110 days

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    Triton Knoll Offshore Wind Farm - Confirmed UXO Targets

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

    Please be 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

     

    See detailed map on our bulletin website
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    Rig - Valaris 72

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

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    Survey - Brodgar Infill 2021 (Ref: 1200)

    A 3 Day Survey Brodgar Infill between the 15th April 2021 - 31st May. Using the vessels SW Amundsen Call sign: 5BXE2, MV Scorpio call Sign: ZDRF7 & Tess Call sign: YJUV8

    Company Vessels

    Towed Cable

    Length & Depth

    Duration Survey Block

    Shearwater GeoServices AS

    SW Amundsen

    5BXE2

    MV Scorpio

    ZDRF7

    Tess

    YJUV8

    8000m

    15m

    15/04/2021 - 31/05/2021

    For 3 Days

    21

    See detailed map on our bulletin website
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    Nearshore Pre-Cable Installation Works - Neart na Gaithe OWF

    Neart na Gaoithe Offshore Wind Farm Limited (NnGOWL) are due to commence preparation works for the export cable installation, within the nearshore extent of the Export Cable Corridor. The works are due to commence on the 13th March 2021 at the earliest.

    Two jack-up vessels, Capall Mara (MBSF3) and C57 Red Squirrel (J8B5722), will carry out a small amount of seabed preparation operations and undertake trenching works along a short section of the nearshore cable route.

    The Capall Mara backhoe dredger will work along the two cables routes within the nearshore area, a first pass will be made where the vessel will reposition boulders between KP0.65 and KP1.4 followed by a second pass of each route where the vessel will excavate a trench within which the cable will be laid.

     

    Excavated material will be temporarily repositioned to the side of the trench and will be backfilled by the Capall Mara once the nearshore cable installation is completed.

    C57 Red Squirrel will work at KP0.65, to excavate two pits at the existing HDD exits and conduct minor construction works associated with the HDD exit point. The jack up vessel C57 Red Squirrel will arrive on site supported by two tugs, Forth Trojan (2FYM4) and The Battler (MGHD9).

    A Crew Transfer Vessel, Celtic Guardian (21ZH5), will transfer personnel between the Capall Mara and C57 Red Squirrel and Eyemouth harbour each day. Celtic Guardian will also support with periodic minor surveys of the route. A dive vessel, CRC Tempest (MYUY7) will also work alongside the C57 Red Squirrel providing dive support associated with the minor HDD Construction works, as required.

    Vessels are requested to remain at least 500 metres away from the Capall Mara and C57 Red Squirrel. Static fishing gear is requested to remain removed from the updated exclusion area

     

    Area of Operations Mariners are advised that the Capall Mara and C57 Red Squirrel, alongside a number of supporting vessels, will be mobilised to work within the nearshore area of the NnG Export Cable Corridor' The nearshore exclusion zone will replace the existing exclusion area in place from the date of this notice.

    Schedule The pre-enabling construction works are due to recommence on the 13th March 2021, at the earliest, and is expected to last approximately six weeks, until 30th April 2021, weather dependent. After this work, the preparation for cable installation will commence, in early May 2021, ahead of cable installation in June and July 2021. A further notice to mariners will be issued outlining the next phase in more detail.

    Weather permitting, construction works will be carried out on a continuous basis (i.e. 24-hour working, seven days a week) on the Capall Mara and on a daytime only basis (i.e. 12-hour working, seven days a week) on the C57 Red Squirrel.

     

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    Decommissioning Activities – Hydrocarbon Free Activities on the Amethyst A1D Installation

    Planned Hydrocarbon Free works are due to commence on the Amethyst A1D platform (UKCS 47/14).

    The HAEVA Mobile Offshore Decommissioning Unit (Modu) will depart from Vlissingen in the Netherlands 3rd March 2021 (dependent on weather) and transit to the Amethyst field, where it will commence Hydrocarbon Free operations.

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    Bathymetry Survey - HI1518 Mermaid Shoal

    Please be advised that A-2-Sea Solutions will be carrying be carrying out a Civil Hydrography Programme nautical charting survey on behalf of the MCA.

    A-2-Sea Solutions Ltd will be operating the vessel 'Cerys Line' on a 24-hr basis. The 'Cerys Line' (26.1m LOA) will be underway throughout operations, sailing survey lines at 5-12 knots. The 'Cerys Line' will exhibit the lights and shapes prescribed by the International Regulations for Preventing Collisions at Sea and will maintain a listening watch on VHF Channel 16.

     

    Please not that no towed equipment is to be deployed, this is an echosounder survey for nautical charting.

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    Deployment of Current Profiler - Mermaid Shoal

    Mariners are to be advised that a seabed frame mounted Current Profiler, primarily measuring currents, will be deployed in one location in Mermaid Shoal.

    The current profiler is scheduled to be deployed in early April 2021 by the vessel 'Cerys Line'. The current profiler will be isolated from the surface completely with no buoys or markers attached. The survey frame is approximately 1m high and will be attached to a clump weight by a weighted rope. 

     

    The current profiler will be in position on the seafloor for a minimum period of 30 days.

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    Cable Fault - BritNed HVDC Cable

    Following the repair of a recent fault, another fault has developed, believed to be further to the east, since the repair was completed. Consequently, the safety zone is being extended to include the area of the new fault.

    Following a recent fault (caused by impact damage) and subsequent repair to the BritNed HVDC Interconnector, the repaired section although trenched, is still in the process of natural backfill and areas of exposure remain. A guard vessel (currently M/V FORTUNA) remains on site. Another fault, still under investigation, has developed, believed to be further to the east, since the repair was completed. Consequently, the safety zone is being extended to include the suspected area of the new fault.

     

    We wish to remind ship’s captains of the presence of subsea cables and request that extra caution is exercised when operating near charted cables in order to avoid any incident. Due to changing seabed conditions it should not be assumed that all cables are buried.

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    Survey - Alvhelm Prospect (Ref: 1193)

    A 6 Day Site Survey at the Boyla Prospect between the 01st April 2021 - 31st August. Using the vessels Ramform Vanguard Call sign: C6TU8 & Sanco Chaser Call sign: ZDHH3.

    Company Vessels

    Towed Cable

    Length & Depth

    Duration Survey Block

    PGS Geophysical AS

    Ramform Vanguard

    C6TU8

    Sanco Chaser

    ZDHH3

    6500m

    6m

    01/04/2021 - 31/08/2021

    For 4 Days

    9

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    Survey - Boyla Prospect (Ref: 1192)

    A 4 Day Site Survey at the Boyla Prospect between the 01st April 2021 - 31st August. Using the vessels Ramform Vanguard Call sign: C6TU8 & Sanco Chaser Call sign: ZDHH3.

    Company Vessels

    Towed Cable

    Length & Depth

    Duration Survey Block

    PGS Geophysical AS

    Ramform Vanguard

    C6TU8

    Sanco Chaser

    ZDHH3

    6500m

    6m

    01/04/2021 - 31/08/2021

    For 4 Days

    9

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    Rig Move - Maersk Resilient

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

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    Catcher Field 3D / 4D Seismic Survey

    Premier Oil UK have contracted PGS to conduct a Seismic survey over the Catcher Area assets located in block 28/9, the survey will also partly extend into blocks 28/3, 28/4 and 28/10. The survey is planned to commence 17th April 2021 and last 33 days.

    The Seismic survey vessel to be used by PGS is the PGS Ramform Hyperion, call sign C6DB4, registered in the Bahamas. It is due to be mobilised from Flora in Norway on the 11th April and start shooting Seismic on 17th April 2021. The survey is due to last 33 days.

     

    PGS Ramform Hyperion will be accompanied by two other vessels. The Thor Omega (support vessel)  that will also mobilise from Flora and the Groen Miranda (escort vessel) , which will mobilise from Scheveningen, Netherlands.

     

    Seismic survey operations will be by active surveying and the firing of airguns

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    Neart na Gaoithe Offshore Wind Farm - HDD Marine Works

    Mariners are advised that Neart na Gaoithe Offshore Wind Farm Limited (NnGOWL) have completed the HDD supporting works within the nearshore extent of the Export Cable Corridor.

    As part of the completed works, the two separate HDD ducts have been cut back to a level just above the seabed and capped in preparation for upcoming export cable works. The height of the end of the ducting above the seabed (stick-up height). Each HDD exit location has been marked temporarily by a surface marker buoy. As-laid positions of the marker buoys are also provided.

    The next scheduled works are due to begin the week commencing 15th March 2021, at the earliest. A notice to mariners will be issued in advance of these works, to notify of the start date.

     

     

     

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    Deployment of Buoys - West Gabbard

    Recording oceanographic equipment has been moored at West Gabbard

    There are a Smart Buoy and 2 yellow, Class 2 Guard Buoys carrying radar reflectors at the site.

    All three buoys are fitted with a yellow light exhibiting the sequence FI Y (5) 20s.

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    Drilling - Grove Platform UKCS Block 49/10a

    The Maersk Resolve drilling rig will be mobilising from the port of Esbjerg in Denmark on or around 10th March 2021. The rig will be undertaking drilling activities at the Grove platform in UKCS block 49/10a expected to arrive at Grove on 12th March 2021.

    The rig is likely to be on location for a total period of 130 days. 

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    Deployment of Buoy - Blyth Met Mast

    Fugro have now completed planned SeaWatch LiDAR Buoy (SWLB) deployment and recovery operations in the vicinity of the Blyth Met Mast.

    The SWLB referred to as WS180 has been recovered from the location south-east of the met mast and the SWLB referred to as WS155 has now been deployed on site to the north-west of the met mast. Exact locations are provided. The deployment location is within the UK Sector of the North Sea off the coast of Blyth, Northumberland.

    The equipment will be deployed close to the Blyth Met Mast as part of a validation study within the existing met mast 250 m consent zone and will be deployed for a minimum period of 3 months.

    Scheduled maintenance is not planned due to the short deployment duration, but unforeseen maintenance may be required.

    The equipment will be moored through a combination of steel chains, rope and rubber cord to approximately 2250 kg anchor weight at the seabed.

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    Snagging hazard - Near Well 3/03-12

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

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    Decommissioning Activities – HCF / Topsides Dismantlement of the Amethyst C1D Installation

    Planned Topside dismantlement works are due to commence on the Amethyst C1D Platform (UKCS 47/14).

    The Jack up Barge, will depart from Leman 27BT (UKCS 49/27B) 25th February 2021 (dependent on weather) and transit to the Amethyst field, where it will  commence HCF/Topsides dismantlement operations on Amethyst C1D Platform (UKCS 47/14).

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    Installation of temporary marker buoy - as laid position

    A Yellow Special Mark has been installed marking an exposed pipe

    A temporary marker buoy has been positioned at the North of the end of the exposed duct shown in Fig 2 on the attached NtM (the highest point above sea level). The exposed duct protrudes approximately 20m from the seabed. The highest point is approximately 2.4m above seabed level or 6.5m below surface at LAT.

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    Rig - Transocean Endurance

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

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    Rig - Prospector 1

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

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    Rig - Erda - Amethyst 47/14-C1D

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

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    Suspended Wellhead : Affleck 30/19-1

    Suspended wellhead structure on seabed.

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    Boulders Deposited within the Brighton MCZ (UPDATE)

    It has been reported that on the 23 and 25 February 2021, the Greenpeace vessel 'Esperanza' has deposited a number of boulders within the Brighton Offshore Marine Conservation Zone (MCZ). Estimated weigh ~3 tonnes each.

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    Pipeline Flushing and Riser Decommissioning - Balmoral Area

    Premier Oil’s project to flush & disconnect the Greater Balmoral Area subsea infrastructure and removal of associated risers in relation to the float-off of the Balmoral FPV will be undertaken between 28th February and 31st December 2021.

    Locations Coordinates
    Balmoral FPV & Template

    58°13.727'N 001°06.427'E

    Tap Valve No.3 (Forties Pipeline System) 58°06.622'N 001°09.449'E
    Balmoral Satellite Well B29 58°15.127'N 001°03.323'E
    Balmoral Satellite Well A2 58°13.970'N 001°07.953'E
    Brenda Drill Centre 58°11.763'N 000°58.407'E
    Brenda Umbilical cut point 58°13.810'N 001°06.318'E
    Nicol Drill Centre 58°14.908'N 000°50.812'E
    Stirling 20z Well 58°14.010'N 001°08.063'E
    Glamis A26 Well 58°10.695'N 001°01.045'E
    Glamis A27 Well

    58°10.308'N 001°04.168'E

    Burghley WH1 Well 58°16.052'N 001°14.148'E
    Beauly Well 58°11.028'N 001°07.632'E

     

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    Exposed Cables - Galloper Offshore Wind Farm

    Update from most recent subsea survey. There is evidence of sections of cable exposure in ten areas over seven cable routes of the Galloper windfarm. Locations noted below

     

    Area Start  Stop
    D1J - E2J 51°48.489'N 002°02.339'E 51°48.489'N 002°02.341'E 
    E3H - E4H 51°55.322'N 002°01.231'E 51°55.322'N 002°01.224'E
    E4H - E5H 51°54.568'N 002°01.180'E 51°54.565'N 002°01.176'E
    OSP - D3A 51°57.151'N 002°01.879'E 51°57.127'N 002°01.876'E
    OSP - F3C 51°57.455'N 002°02.816'E 51°57.472'N 002°02.141'E
    OSP - F3C 51°57.508'N 002°02.564'E 51°57.513'N 002°02.587'E
    OSP - F4E 51°57.100'N 002°02.148'E 51°57.100'N 002°02.150'E
    OSP - F4E 51°57.101'N 002°02.462'E 51°57.101'N 002°02.462'E
    OSP - F6G 51°56.400'N 002°01.586'E 51°56.399'N 002°01.587'E
    OSP - F6G 51°56.369'N 002°02.200'E 51°56.369'N 002°02.200'E

     

    There is no cable exposure evident in the South Field of the windfarm.

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    Cone Penetration Testing and Vibrocore Sampling at Dogger Bank A, B, C Windfarm

    This notice to mariners (NtM) relates to cone penetration testing and vibrocore sampling on DBA, DBB, DBC wind farm array areas and Export Cable Corridors.

    The Wilson Adriatic will be performing cone penetration testing and vibrocore sampling and will be stationary on locations for up to approximately 4 hrs.

    The cone penetration testing and vibrocore sampling is expected to commence at midnight on 5th March, 2021 and conclude at midnight on 31th June, 2021 using the vessel Wilson Adriatic. Works are planned to commence in the DBC wind farm array area.

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    Damaged pipeline

    Physical damage to pipeline

    Physical damage to pipeline, current cause unknown. Vessel on scene assessing.

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    Inter Array Cable Burial works - Moray East Wind Farm

    Please be advised that Moray Offshore Windfarm (East) Limited (Moray East) are carrying out Inter Array Cable (IAC) burial works within the bounds of site

    The cable trenching (post lay burial) will be completed by tracked- on bottom trenching tools. WROV surveys will be conducted once the cable is buried.

     

    Two trenching support vessels ,Grand Canyon 3 and the Boskalis Ndeavor, will be completing operations on the cable routes identified in Figure 2.

     

    Both vessels will complete launch and recovery operations of the trenching tools, and will be restricted in their ability to manoeuvre during trenching and WROV operations.

     

    The overall work scope will be carried out in 2 campaigns – Campaign 1, commencing 07/11/20 to 03/01/20 and Campaign 2, commencing 20/03/21 to 12/05/21.

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    Abandoned Well - 206/12a-3

    This wellhead has been removed from the seabed.

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    Abandoned Well - 29/04e-5Z

    This wellhead has been removed from the seabed.

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    Abandoned Well - 9/19b-29 & 9/19b-29A

    This wellhead has been removed from the seabed.

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    Drilling - Elgood Well 48/22c-H1

    Petrofac Facilities Management Ltd (PFML) propose to drill and complete a production well at the Elgood Subsea location, from the 9th March 2021 for, the duration of, 89 days. The drilling operation will be carried out by Noble Hans Deul drilling rig.

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    Abandoned Well - 44/18-2Z

    This wellhead has been removed from the seabed.

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    Galloper Windfarm - Defect of the Cable Protection System (CPS) inter-array cable GS-A1L

    A recent ROV inspection at Galloper to assess the subsea structure of inter-array cable A1L identified a defect of the Cable Protection System (CPS) on top of the existing scour protection around the wind turbine foundation, at the point of burial.

    A recent ROV inspection at Galloper to assess the subsea structure of inter-array cable A1L identified a defect of the Cable  Protection System (CPS) on top of the existing scour protection around the wind turbine foundation, at the point of burial.

     

    Asset Location  GS-A1L 51° 43,972' N 1° 58,174' E 

     

    As cable exposure is a known risk at Galloper and across the offshore wind industry, we would remind Mariners of the safety   information found on the KIS-ORCA website ‘The risks of fishing near cables and renewable energy structures.’   https://kis-orca.org/safety/the-risks-of-fishing-near-cables-renewable-energy-structures/ 

     

    To avoid crossing cables when towing equipment follow the cable corridors- locations of the cables can be found on the   Galloper awareness charts via KIS-ORCA. 

     

    An updated NtM will be issued once the remedial works is confirmed and scheduled 

     

    Mariners are requested to remain a distance of 50m2 away from GS-A1L, 51° 43,972' N 1° 58,174' E, until remedial works have been carried out.  

     

    Temporary exclusion area as per the below drawing.   

     

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    Sound measurement study - Hywind Scotland Pilot Park

    Hywind Scotland Pilot Park is performing a sound measurement study where the purpose is to document the operational noise. Successful retrieval of control sound recorder performed January 24. Failed retrieval of the sound recorder in wind park.

    Update February 5:

    Successful retrieval of control sound recorder performed January 24. Failed retrieval of the sound recorder in wind park.  A second attempt for retrieval of the sound equipment in the Hywind Scotland Pilot Park is being planned. The notice is prolonged and the location of the retrieved control equipment is removed from the notice.

    -----

    As part of the Hywind Scotland Wind Park, Equinor has subcontracted Jasco Applied Sciences to perform sound recordings in the park area and in a control location in Buchan Deep (near cross over point between the FORTIES to CRUDEN Bay oil line and the GAS line).

     

    The purpose of the sound measurement study is to document the operational noise from floating offshore wind turbines and their substructures, mooring lines and cables. It is part of an internal Equinor Research &Technology project that aims to increase knowledge on possible environmental implications of floating offshore wind, i.e. in this particular study, the possible impact ranges of sound from the wind park on marine mammals and fish. The results from the sound measurement study is important also for further technology development.

     

    The Equinor contracted “MCS Swath1” (crew vessel) will be used for the deployment and retrieval of the sound recorder equipment (hydrophones). The field activity in connection with both deployment and retrieval will take one day, however, the recording period will be approximately 3 months from ultimo October 2020 to ultimo January 2021.

     

    The recorders were deployed October 21. Yet, no exact date is set for the retrieval of the equipment (ultimo January 2021).Activity prolonged.

     

    All Equinor installed equipment shall remain in position for the duration of the survey, but all equipment will be removed from seabed when the recording period is over. Also, there will be no bouys on sea surface or lines in the water column. All equipment will be placed on sea floor at approximately 100 meters depth by the help of an anchoring plate, which fastens the equipment and eliminates drifting of equipment. The equipment will have a height of maximum 1 meter above seabed, and the plate mooring system has the dimension 914 x 527 x 864 mm.

     

    This equipment collects data and information of environmental importance and could get damaged or lost if trawled over.

     

    When the equipment is retrieved, the acoustic release will be activated and the equipment will be lifted by crane.

     

     

    Positions for recorders in wind park  (The Control was retrieved January 24 2021 and location is removed from the map in the active notice.)

     

    Location

    Latitude

    Longitude

    Easting (m)†

    Northing (m)†

    Hywind Scotland

    57° 29' 04.2741" N

    1° 20' 33.8512" W

    599357.410

    6372534.418

    Control

    57° 31' 48.0000" N

    1° 07' 33.6000" W

    612209.809

    6377933.954

     

     

     

    Vessel Specification

     

    Details of the vessel MCS Swath1 can be seen via the following document.

     

    https://www.maritimecraft.co.uk/files/MCS-SWATH-1.pdf

     

    According to information in the specification, a deck crane of load 500 kgs is installed. The crane and a mobile winch will be used to deploy and retrieve sound recording equipment.

     

     

     

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    Maersk Highlander at Elgin WHP B

    The jack-up rig Maersk Highlander is alongside Elgin WHP B – within 500m zone for the next 6 months (approximately)

    The jack-up rig Maersk Highlander is alongside Elgin WHP B  – within 500m zone for the next 6 moths (approximately)

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    Suspended Wellhead - Tolmount Main NE 42/28d-16

    There is a new suspended wellhead on the seabed. These can be up to 4 metres high, they are not protected by 500m Safety Zones and are not required to have an overtrawlable protection structure.

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    Suspended Wellhead - Tolmount Main SW 42/28d-17

    There is a new suspended wellhead on the seabed. These can be up to 4 metres high, they are not protected by 500m Safety Zones and are not required to have an overtrawlable protection structure.

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    Suspended Wellhead - Tolmount Main SE 42/28d-18

    There is a new suspended wellhead on the seabed. These can be up to 4 metres high, they are not protected by 500m Safety Zones and are not required to have an overtrawlable protection structure.

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    Installation of Special Mark Buoys - Scarborough

    Please be advised that we have installed 4 x Special Mark buoys at the boundaries of our aquaculture site. Each buoy is a yellow can shaped Special Mark fitted with a topmark, radar reflector and light (Fl.Y.5s).

    Whilst the boundaries of the aquaculture site are lit, marked and charted, equipment deployed within these boundaries may be unlit and lying close to the surface.  Mariners are advised to exercise caution in the vicinity and to remain a safe distance outside the site boundaries. 

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    Rig - Valaris 122

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

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    Rig - Maersk Intrepid

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

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    Rig - Rowan Stavanger

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

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    Rig - Ensco 120

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

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    Rig - 590021

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

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    Rig - Transocean Spitsbergen

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

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    Rig - Valaris Gorilla VI

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

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    Lost CPT rod - Eastern Link 1

    During CPT operations a CPT rod broke and was lost to the seabed. The rod is made of steel and is 3.6cm in diameter. It is estimated that 0.75m of rod is protruding above the seabed.

    The cone and friction rod were also missing at recovery and are most likely curried under the seabed. These are also made of steel with the same diameter. The cone is 35cm long and the friction rod is 30cm long. 

     

    There may be a minor risk to trawler’s fishing gear if they trawl over this location, however, it is more likely that any trawling gear would break the rod below the seabed.

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    Survey - Proposed Drilling Survey Diadem Well (Ref: 1166)

    A 6 Day proposed drilling survey of the Diadem Well. Using Vessels Fugro Galaxy Call Sign: C6YY4 & Fugro Synergy Call Sign: C6XR3 from the 18th January until 01th June 2021

    Company Vessels

    Towed Cable

    Length & Depth

    Duration Survey Block

    Fugro GB North Marine Ltd

    Fugro Galaxy

    C6YY4

    Fugro Synergy

    C6XR3

    700m

    3m

    18/01/2021 - 30/06/2021

    For 6 Days

    22

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    Rig - Rowan Viking

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

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    Triton Knoll Offshore Wind Farm - Navigation Warning

    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.

    Mariners are advised that the remnants of a Wave Rider Buoy sinker weight and partial rigging remain in position at:

     

    Latitude Longitude Water Depth (LAT)
    53° 30.442N 000° 50.564E 19.7m

     

    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.

    ***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.
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    Pile Installation - Penguins Field

    A number of items will be left installed/wet stored on the seabed around the Penguins Field. Pile Fast Frame (together with pile stick-up) 8 x piles (completed with multiple clay protrusions/blocks) 9 x chains (210m long, 177mm diameter).

    Details of Seabed - West Cluster

    Pile No Location Clay plugs at pile location
    1 61°35.020'N    01°31.070'E  1.30m height x 2.5 dia.
    2 61°34.990'N    01°31.070'E 2.00m height x 2.5 dia.
    3 61°35.020'N    01°31.060'E 1.50m height x 2.5 dia.
    4 61°35.050'N    01°31.070'E 1.50m height x 2.5 dia.

    Note: 210m of 177mm dia. chain has been laid on seabed at each location towards the FPSO centre.

     

    Details of Seabed - North East Cluster

    Pile No Location Clay plugs at pile location
    5 61°35.550'N    01°33.430'E 1.30m height x 2.5 dia.
    6 61°35.540'N    01°33.470'E 2.00m height x 2.5 dia.
    7 61°35.520'N    01°33.510'E 1.50m height x 2.5 dia.
    8 61°35.510'N    01°33.550'E 1.50m height x 2.5 dia.

    Note: 210m of 177mm dia. chain has been laid on seabed at each location towards the FPSO centre.

     

    Details of Seabed - Southern Cluster

    Pile No Location Comments
    9 61°34.450'N    01°33.500'E

    Fast frame is currently located at pile location 9 (11.85m x 11.70m x 30m

    Note: 30m pile is installed in this fast frame

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    Leadon Area – Possible Trawl Hazards

    Six small structures (approx. 0.5m high x 1.5m long and 0.6m across) were located on the top of the disused Leadon Bundles in UKCS Block 9/14. These small structures are located at the points listed.

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    Topsides and Jacket Removal - Brent Alpha Platform

    Brent Alpha Platform (topsides and jacket) have been removed. The Jacket footings protrude 55.24m metres above the seabed. There is no longer a Safety Zone around the Brent Alpha remaining structure.

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    Decommissioning - Ninian Platform

    Two cardinal buoys in proximity to Ninian North Platform, after removal of platform topsides (and associated navaids) in 2020.

    West cardinal buoy (Fl. Q. (9). 15s), including ground tackle, with 400m excursion radius. Buoy fitted with AIS.

    East cardinal buoy (Fl. Q. (3). 10s), including ground tackle, with 400m excursion radius. Buoy fitted with AIS.

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    Completion of Explosive Ordnance - Hornsea Project Two

    Mariners are advised that the Explosive Ordnance Detonation (EOD) phase for the pre-construction stage of Hornsea Project Two is now completed.

    Hornsea Project Two confirms the presence of 7 Unexploded Ordnance (cUXO) and 2 suspected UXO (sUXO) which remain undetonated within the Hornsea Project Two Wind Farm area. There are no plans to clear these remaining UXO.

    All vessels are requested to maintain the required safe distances as defined from the coordinates

     

    It should be noted that ongoing seabed preparation for construction, as well as construction activities themselves, may identify further UXO which may need to be cleared from the site. Separate notices will be issued in this case.

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    Unexploded Ordnance

    Two items of debris identified as WW2 unexploded ordnance

    The as-built survey of the Mariner 6" Gas Import pipeline showed two items of debris that were later identified as WW2 unexploded ordnance.

     

    The UXOs posses no immediate threat to the burried pipeline. 

     

    Plans are being reviewed to arrange for safe removal and destruction/disposal.

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    Dropped drill pipe and collars (2,300kg / 33 metres)

    Fugro has reported the loss of 33 metres of drill pipe, weighing a total of 2300kg from the MV Normand Flower whilst working on East Anglia 1 North wind farm. It is not known whether the item is sticking up above the seabed at this stage.

    Dimensions of object: ~33 m of steel drill string consisting of: 4 X Drill Collars (each ~4.5 m long, ~8 inch diameter and ~500 kg in weight) 1 X API Drill String ~9 m long, 4.5 inch diameter and ~300kg weight

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    Ninian North jacket

    Top of Ninian North jacket 6m above sea level - no navaids or lights

    The topsides has been removed from the Ninian North installation, leaving the jacket structure still in place. The top of the structure is approximately 6 metres above sea level. With the removal of the topsides, the remaining jacket structure is unlit and is not fitted with any navaids; cardinal buoys are located to the East & West.

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    Buzzard Field - unconnected subsea infrastructure

    Drilling activity in the Buzzard Field will cease for 2020 in September leaving 4 x Xmas Trees and 2 x wellhead conductors unconnected in the field until the subsequent subsea campaign in 2021. The locations are in the table below.

    Subsea structure

    Manifold Slot

    Coordinates ED50

    Protection structure

    PN1

    57° 50' 44.150" N

    000° 54' 35.320" W

    Xmas Tree

    PN3

    57° 50' 42.899" N

    000° 54' 34.214" W

    Protection structure

    PN5

    57° 50' 44.988" N

    000° 54' 38.071" W

    Xmas Tree

    PN7

    57° 50' 45.401" N

    000° 54' 36.426" W

    Xmas Tree

    IN1

    57° 50' 45.817" N

    000° 54' 34.780" W

    Xmas Tree

    IN2

    57° 50' 43.312" N

    000° 54' 32.569" W

     

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    Dropped Anchor - Gwynt y Mor Offshore Wind Farm

    The original anchor consisting of approximately 350kg of scrap chain at the previously as laid position:53°28.615 N 003°30.192 W could not be recovered and remains on the sea bed.

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    Exposed Cable - Tampnet Fibre Optic Cable - Penguins (UK) - Snorre A (NOR)

    Please be advised that the installation of the Tampnet fibre optic cable is still ongoing and that there is currently approximately 4.5km of EXPOSED CABLE on the seabed. We advise all seafarers and fishermen to keep clear of using any bottom equipment.

    Please be advised that the installation of the Tampnet fibre optic cable is still ongoing and that there is currently approximately 4.5km of EXPOSED CABLE on the seabed as per attached drawing. We advise all seafarers and fishermen to keep clear of using any bottom equipment that might interact and damage the cable in vincinity of the route. We are also broadcasting and raising awareness from land and nearby guard vessels to all fishermen approaching the cable route. The installation is expected to be ongoing until mid September. 

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    Exposed Cable - Beatrice Offshore Windfarm

    Rock Replacement Operations on a short area (4m) of partial exposure of Export Cable EC2 is in the vicinity of the mid cable joint at the location where the cable changes direction. Vessel MV Olympic Artemis Call sign: LAFV8. Work Commencement date TBC.

    ROn behalf of Beatrice Offshore Windfarm Ltd, MV Olympic Artemis Call sign: LAFV8 will deploy rock bags over a four-metre section of exposed export cable.

     

    Work Commencement date TBC.

     

    During this operation the MV Olympic Artemis will be restricted in its ability to manoeuvre and will be displaying the appropriate lights and day signals. All vessels are there for requested to give a wide berth when passing.

     

    At present the MFV Reaper is acting as a guard vessel at this location, further information is available in previously issued Beatrice notice to mariners NTM-BE-00005 - Export Cable Guard Vessel. MFV Reaper will remain on location throughout operations until the partial exposure has been proven to be satisfactorily covered.

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    Relocated Unexploded Ordnance - Neart na Gaoithe Offshore Wind Farm

    Following unsuccessful clearance activities at some of the confirmed Unexploded Ordnance (UXO) items, six UXOs have been relocated to date within the Neart na Gaoithe (NnG) Offshore Wind Farm and Export Cable Corridor.

    These UXO items either do not contain a fuse or are confirmed as solid shots and clearance by detonation is not likely to be possible. As such, relocation of the item is necessary. The item will be relocated to a position outwith the construction areas, but within the boundaries of the NnG licensed area, as permitted by the Marine Licence.

     

    Latitude Longitude Target
    56°14.752’N 02°18.472’W G_MAG_0029
    56°14.760’N 02°18.474’W G_MAG_0010
    56°14.154’N 02°14.886’W E_MAG_0683
    56°13.677’N 02°18.681’W ERC_O_MAG_0332_A
    56°14.955’N 02°17.445’W E_MAG_0068
    56°14.953’N 02°17.437’W E_MAG_0070
    56°14.607’N 02°17.618’W E_MAG_0036
    56°15.399’N 02°19.521’W G_MAG_0109
    56°14.766'N 02°17.025’W E_MAG_0227
    56°14.131’N 02°18.011’W E_MAG_0008
    56°14.568’N 02°18.617’W E_MAG_0018
    56°15.875’N 02°14.986’W C_MAG_0070
    56°13.739’N 02°18.685’W ECR_O_MAG_0362_A
    56°13.784’N 02°18.671’W ECR_O_MAG_0378
    56°02.740’N 02°21.208’W ECR_M_MAG_0708
    56°17.788’N 02°16.833’W B_MAG_0200

     

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    Dropped Mattress - Shell 34" Pipeline

    The 6th mattress for the Shell 34” pipeline will be recovered between 14th November - 31st January 2021 by the Seven Falcon. The Fleximat dimensions are 6.4m x 3.0m x 0.5m Weight in Air 15860kg.

    During overboarding of the 6th mattress for the Shell 34” pipeline, the crane wire parted when the matt was entering the splash zone at approx. 25m above seabed. The Fleximat dimensions are 6.4m x 3.0m x 0.5m Weight in Air 15860kg.

     

    The mat was being overboarded 15m away from the 34” pipeline, the mattress and frame landed on the seabed 6m away from the 34” pipeline

    • Fleximat 6.4x3.0x0.5m 2.4 & 3.2te/m3 Concrete Mattress – Weight in Air 15860kg
    • Mattress Lift frame – 6.3x2.4m – Weight in Air 1.7te
    • Approx. 25m Crane wire
    • 0.5t Crane Block

    25m Crane wire and 0.5te Crane Block safely recovered 13:50, 08/09/20.

     

    Plan is to recover mattress but inspections into the current state of the mattress are required to determine a suitable recovery methodology.

     

    A marine licence (ML/634) application has been submitted and approved by BEIS,  A variation to extend the marine licence to 14th November 2020 was approved by BEIS on 2nd November, and a second variation for extension to 31st January 2021 is now pending with BEIS.  This is due to scheduling delays due to poor weather.  The mattress frame and mattress will now be recovered by the Seven Falcon offshore support vessel.

     

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    Cable Repair - GTT Segment C

    Following cable repair, cable exposed due rocky seabed conditions GTT Guard vessel is patrolling the area to promote awareness of the hazard to fisheries

    Notice to fisheries and seabed users in the Irish Sea:

     

    Please be advised that following a recent cable repair to the GTT (Hibernia) Segment ‘C’ between Southport and Dublin, the cable has been deployed as follows:

     

    Initial Splice:        53° 48.3613’N    04° 30.1514’W

    Standing bight:   53° 48.2208’N    04° 29.4494’W

    Final Splice:         53° 48.1279’N    04° 28.2360’W

     

    It should be noted that throughout the extent of the cable repair, despite repeated attempts at post lay burial by an ROV, the predominantly very rocky seabed has meant that cable burial and hence protection has not been possible.

     

    It should also be noted that at the position of the ‘standing bight’ the cable is standing upright from the seabed at a height of 0.4 metres, with a length over the ground of 2.0 metres.

     

    All seabed users are requested not to deploy equipment which engages with the seabed in this area, to avoid snagging of the cable and particularly so, at the standing bight area.

     

    In case of any issues, please do not hesitate to contact the GTT Hibernia emergency contact number on: +353 1 867 3600 Option 2

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    Exposed Pipelines - Scott Field

    Pipelines in CNOOC’s Scott field have experienced upheaval bucking. As a result, in three locations, pipelines are now exposed and present a significant snagging hazard. Sea users are strongly advised to avoid these locations.

    Detailed below, to avoid hazardous interaction with these sections of exposed pipeline, pending the execution of mitigation works.

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    Dropped Object - Hornsea Two Offshore Wind Farm

    Noise monitoring frame(steel 1m3 frame approx. 40kg), hydrophone,riser buoy,clumped(100kg chain clump weight) & 50m Dyneema riser line(dia.~25 mm)remain after the riser line was severed below the surface buoy.Surface marker buoy and pellet buoy recovered.

    The riser line was severed below the surface buoy and it has not been possible to recover the items. Investigations as to the cause of the loss are ongoing.

     

    Possible risk of entanglement from remaining riser line.

     

    The SONAR imagery acquired during the recovery attempt indicated the riser line (the main aspect of concern) to be still attached to the anchor weight and suspended in the lower part of the water column. Given the elapsed time, the line will be fully saturated and neutrally buoyant and fully submerged. It is anticipated that the action of tidal currents on the line will cause it to knock down and eventually become entangled in the frame and other gear. Whilst it has not been confirmed, it is unlikely that the line would remain close to the surface.

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    Rig Move - Askepott

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

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    Rig Move - Maersk Inspirer

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

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    Rig - Ocean Patriot

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

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    WTG Installation and Commissioning - Moray East Windfarm

    WTG Installation and Commissioning installation on the Moray East windfarm

    Please be advised that Moray Offshore Windfarm (East) shall commence WTG installation on the previously installed jackets (Figure 2). WTG’s will be installed by the JUV Bold Tern. Once the WTG’s have been installed Acta Centaurus will transfer teams of technicians using a walk to work system to carry out commissioning works in readiness for energisation. Acta Centaurus will be supported by 2 CTV’s (HST Harri and Windcat 40). Installation and commissioning works will commence circa 05th January 2021 until completion

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    Survey - Millom West & Calder Debris Clearance (Ref: 1165)

    A 2 Day Gardline Millom West & Calder Debris Clearance Survey. Using Vessel MV Ocean Reliance Call Sign: HP6391 From the 15th January until 31st July 2021

    Company Vessels

    Towed Cable

    Length & Depth

    Duration Survey Block

    Gardline Limited

    MV Ocean Reliance

    HP6391

    N/A

    15/01/2021 - 31/07/2021

    For 2 Days

    110

    113

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    Marine aggregate sampling survey - Area 481

    Tarmac Marine Ltd and Van Oord UK Ltd are planning to undertake a vibrocore sampling survey in and around the marine aggregate dredging Area 481 in the Humber region.

    The survey will involve a survey boat deploying a vibrocorer to retrieve seabed samples in and around Area 481.  

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    Deployment of Buoys - Hornsea Project Two

    Ørsted have relocated a 'measurement buoy', as well as two 'transponder buckets' as part of construction of the Hornsea Project Two Offshore Wind Farm.

    The devices have been placed within the Order Limits of the Hornsea Project Two offshore wind farm.

     

    Note that these devices will remain on location throughout construction of the Hornsea Project Two Offshore Wind Farm and mariners should take note of their presence.

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    Wreck - Joanna C

    Marine Accident Investigation Branch (MAIB) hereby PROHIBITS access to and/or interference with the wreck of fishing vessel Joanna C or its equipment and GIVES DIRECTION requiring that the same shall be left undisturbed until further notice.

    Specifically prohibited are: anchoring in the vicinity of the wreck, fishing by nets, trawls or lines in the vicinity of the wreck, and any diving operations on the wreck or its outlying gear. For the purposes of this direction, the vicinity of the wreck shall be taken to be a circle, radius 200 metres, centred on the wreck’s location.

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    Lidar Deployment - East Anglia Two Wind Farm

    SeaWatch LiDAR Buoy (SWLB) has now been redeployed at the East Anglia TWO wind farm site. The SWLB is a sea state measurement instrument. The buoy has been recovered from site leaving some mooring components and the anchor weight on the seabed.

    The equipment was deployed by the vessel Afon Wen on 28 November 2020. Grappling operations were also conducted on site and the majority of an old mooring remaining on the site were recovered from the location; the only remaining items on the seabed are an anchor weight, a short length of chain and approximately 10 m of dyneema rope. No further scheduled maintenance is planned on this project, although unforeseen maintenance may be required.

    The mooring design is specific to each SWLB deployment and location. The equipment is moored through a combination of steel chains, rope and rubber cord to approximately 2250 kg anchor weight at the seabed.

    The equipment is deployed within the East Anglia TWO wind farm array limits and will be deployed for approximately twelve months from July 2020.

     

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    Suspended Wellhead - 47/09b-5

    Suspended Wellheads are not protected by 500m Safety Zones and are not required to have an overtrawlable protection structure.

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    Suspended Wellhead - 16/06a-V2

    Suspended Wellheads are not protected by 500m Safety Zones and are not required to have an overtrawlable protection structure.

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    Suspended Wellhead - 16/02b-5

    Suspended Wellheads are not protected by 500m Safety Zones and are not required to have an overtrawlable protection structure.

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    Suspended Wellhead - 9/19b-29A

    Suspended Wellheads are not protected by 500m Safety Zones and are not required to have an overtrawlable protection structure.

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    Suspended Wellhead - 9/19b-29

    Suspended Wellheads are not protected by 500m Safety Zones and are not required to have an overtrawlable protection structure.

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    Suspended Wellhead - 9/19b-28z

    Suspended Wellheads are not protected by 500m Safety Zones and are not required to have an overtrawlable protection structure.

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    Suspended Wellhead - 9/19b-28

    Suspended Wellheads are not protected by 500m Safety Zones and are not required to have an overtrawlable protection structure.

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    Rig Movement - Paul B Lloyd Junior

    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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    Deployment of Buoys - Outer Hebrides

    Scottish Association for Marine Science (SAMS) has deployed ten moorings off of the Outer Hebrides in Scotland’s Atlantic Frontier. Moorings will be deployed at the ten locations until October 2021.

    The moorings have been deployed as part of a European Maritime and Fisheries Fund project on behalf of Marine Scotland Science, and carry research equipment that records underwater noise and the echolocation clicks of marine mammals.

     

    All moorings are sub-surface and extend no more than 6 metres vertically from the seabed. There is more than 50 metres clearance to the surface above every mooring.

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    Wreck - H17 Wreck Archaeological Exclusion Zone

    A known wreck lying to the south of London Array WTG H17 has become exposed. An archaeological Exclusion Zone (AEZ) already exists to protect this known wreck. Marine users are requested to maintain a safe distance around this wreck and current AEZ.

    Further surveys are planned in 2021

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    Dropped Boulders (~3 tonnes each)

    In addition to the reported 15x boulder positions from 21 September, we have been informed of a further 19x boulders that have been dropped from the vessel 'Esperanza' in the Dogger Bank area. It is estimated these may be laying ~1m above the seabed.

    These boulders have seemingly been deployed in groups at different times, with notification via the UKHO.

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    Drilling - Glengorm Appraisal Campaign

    The Borr Prospector 5 Heavy Duty Jack Up Rig will be positioned at the Glengorm South appraisal well location 22/26d-C.

    The Borr Prospector 5 Heavy Duty Jack Up Rig will be positioned at the Glengorm South appraisal well location 22/26d-C.The rig will remain on location for approximately 216 days before departing to the second appraisal well location on Glengorm, well 22/21c-C.

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    Rig - West Mira

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

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    Rig - Valaris 123

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

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    Deployment of oceanographic sensors - Dee Estuary

    Oceanographic sensors will be deployed for a period of 12 months at 4 locations at the mouth and to the north of the Dee Estuary.

    Oceanographic sensors will be deployed for a period of 12 months at 4 locations at the mouth and to the north of the Dee Estuary. The sensors will be deployed in early November 2020 using the Port of Mostyn workboat, Eileen. Each location will be marked by a yellow surface buoy with a yellow 'X' topmark and will be lit with characteristics Fl.Y.(5)20s.

     

    A 50m exclusion is requested from the marker buoy. Each location will be visited at 3 month intervals for mooring maintenence, using the Port of Mostyn workboat, Eileen.

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    Anchor Weight Chain 800kg - East Anglia One

    There is most likely an anchor weight remaining on site. This is a bundle of approx. 800kg scrap anchor chain. Dimensions of object: Wave buoy mooring consisting: Anchor chain bundle: approx. 1.5 m x 2 m x 1 m

    There is likely <0.5m presence of the anchor at the seabed so no risk to navigation is perceived.

     

    There is a small potential for entanglement with fishing gear should trawling be undertaken in the area should equipment remain on seabed surface. No navigational risks are perceived.

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    Havhingsten Cable Project - North Sea

    Prior to rock placement there is a maximum of 50m of cable surface laid at each of the 4 crossings. It is advised that extra care is taken when vessels are operating near these areas and that no vessel should trawl within 250m from.

    Please be advised that, installation of the Havhingsten fibre optic telecommunication cable system is complete outside of 12nm within the North Sea and at the Seaton Sluice landing. The Whitley Bay stub works are scheduled for March 2021.

     

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

     

    The entire cable system will comprise marine elements that pass from Denmark to the UK (NE region); from the UK (NW) to the Republic of Ireland; with two segments being installed into landfalls on the Isle of Man. 

     

    The cable route in the NE region is shown below. Landfall was made at Seaton Sluice.

     

    Installation was via industry standard burial tools including water jetting and ploughing. Cable burial has been performed to a target of 2m.

     

    The Havhingsten cable crosses 4 pipelines within the UK North Sea, which will require external rock protection. Post-rock installation is now expected in March 2021. The cable crossings start at approximately 72km offshore and beyond.

     

    Prior to rock placement there is a maximum of 50m of cable surface laid with Uraduct protection at each of the 4 crossings. Coordinates of the crossings are provided in the table below. It is advised that extra care is taken when vessels are operating near these areas and that no vessel should trawl within 250m from the listed coordinates.

    Crossing

    Approximate distance offshore (km)

    Latitude

    Longitude

    CATS

    72

    55°15.8028’ N

    000°21.9318’ W

    Norpipe

    113

    55° 19.1679’ N

    000° 16.0266’ E

    Sleipner to Easington

    140

    55° 22.3375’ N

    000° 40.9323’ E

    Shearwater to Bacton

    198

    55° 30.7194’ N

    001° 34.1236’ E

     

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    Dropped Anchor Weight and Mooring

    Anchor weight and mooring from lidar buoy, composed of approx 2250 kg scrap anchor chain, 19mm chain, 20 mm dyneema rope. Dimensions of object: Approx. 2.5 m2 (w) and 1 m height.

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    Construction of Wind Farm (Neart na Gaoithe)

    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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    Deployment of Buoy - Neart na Gaoithe Offshore Wind Farm

    Neart na Gaoithe Offshore Wind Farm Limited (NnGOWL) successfully deployed a Wave Rider Buoy (WRB) within the Wind Farm Area on 12th Sept 2020. The intention is that this buoy will remain in situ within the NnG Wind Farm site for up to 2 years (Sept 2022)

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    Dropped Cylindrical Pipe

    Material is smooth cylindrical pipe drill casing. Dimensions of object: 12.2m x 0.2m presumed to be laying horizontal / sub-horizontal on the sea bed. May present some ‘snagging’ risk to fishing gear or similar. Planned Recovery of Item.

    Details of any radio Navigational Warnings and/or Notices to Mariner’s:

     

    • None as yet, but geotechnical spread remains at site and in a position to guard and notify as required.
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    Dropped Large Anchor

    A large anchor has been dropped to the seabed by the fishing vessel 'Benarkle' (PD400). The anchor is approximately 3nm SSE of the Ninian South platform.

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    Floating LiDAR System - Seagreen Alpha and Bravo windfarms

    Seagreen Wind Energy Limited has replaced the Floating LiDAR System (FLS) at the location shown

    The replacement FLS was deployed on the boundary of the Seagreen Alpha and Seagreen Bravo offshore wind farms in the Firth of Forth Offshore Wind Round 3 Zone off the east coast of Scotland. The replacement FLS is approximately 600m to the south-west of the previous location.

     

    The FLS buoy will remain deployed for up to 1 additional year from this date. Service visits will occur at approximately 3-month intervals over this period.

     

    The FLS is buoy mounted and is moored using 150 m long DIN 5683-II mooring chain Ø26 x 234 mm and 3 tonne concrete anchor. The buoy is powered by solar panels and micro wind turbine generators. The buoy is yellow (RAL 1023) in colour and will be clearly marked with two navigation lights (flashing amber, 5 flashes every 20 seconds, nominal range 3-6 nm visibility). The buoy is fitted with a Radar reflector. A service vessel will be on station for approximately four hours during service and recovery visits. Other vessels should maintain a safe distance when passing the vessel and should pass at lowest possible speed to avoid vessel wash effects.

     

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    Wet Storage of Caisson Sections - Bruce 500m Safety Zone

    Caisson Wet Storage Location

    The wet storage area will, when complete, consist of eight by one tonne gabions with two sections of redundant caisson resting on them. The two caisson sections are 20 metres and 18.5 meters in length weighing 18.4 tonnes and 10.3 tonnes respectively. Six by one tonne gabions were placed on the seabed with the 20 meter section of caisson resting atop of them on the 12th of June 2020. The date when the second 18.5 meter section of caisson will be position in the wet storage area has not yet been determined. 

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    Dropped Anchor

    Trawler J. Bergvoll Call Sign: LLAJ had come fast to an anchor in Position: 61°32.500'N 001°33.200'E and was dropped in Position: 61°30.371'N 001°40.812'E . Trawl damaged.

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    Exposed Subsea Cable - Apollo South

    On behalf of Apollo SCS Ltd, fishermen are advised that following a repair to the Apollo South subsea telecoms cable there now exists a section of exposed/unburied cable.

    Due to the nature of the seabed in this area the cable may be exposed and could be a hazard to fishing. Fishermen are asked to ensure that they have the route of the Apollo South cable accurately plotted on their fishing charts. Trawler skippers are respectfully asked to exercise caution when trawling in the vicinity of the Apollo South cable and to keep beyond a distance of at least 500 metres from the charted cable route and, where at all possible, to avoid trawling directly over the cable route. Static gear fishermen are advised not to deploy anchors and end weights in close proximity to the cable.

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    Clump Weight - Triton Knoll Offshore Windfarm

    A 500kg clump weight made from scrapped anchor chains has been dropped

    Dimensions of object:

    • Various lengths of anchor chain (max 1.3mtr)
    • Held together by steel sling and shackles
    • Total mass ±500kg
    • Connected is a white polyprop line - ± 25-30mtr in length with sinker at end.
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    Fishing Hazard

    Details of fishing hazard

    A fishing vessel had to release a large clump of concrete back to the sea bed after having become snagged. The concrete clump could pose further risk to fishermen. The lump had broken into two parts.

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    Deployment of Buoys - Neart na Gaoithe OWF

    Neart na Gaoithe Offshore Wind Limited (NnGOWL) have completed the deployment of four Cardinal buoys around the Neart na Gaoithe Offshore Wind Farm site.

    The marker buoys will remain in place until the construction of Neart na Gaoithe Offshore Wind Farm is complete.

     

    Name Coordinates
    NNG N - North Cardinal - Quick (Q) White light character 56°20.424'N 002°14.616'W
    NNG E - East Cardinal - Q (3) 10s White light character 56°14.329'N 002°08.557'W
    NNG S - South Cardinal - Q (6) + Long (L) FL 15s White light character 56°12.293'N 002°09.760'W
    NNG W - West Cardinal - Q (9) 15s White light character 56°17.057'N 002°21.083'W

     

    The buoys will be deployed for the duration of the construction of Neart na Gaoithe Offshore Wind Farm. The buoys will be inspected and maintained at least every 12 months.

     

    There are currently two Guard Vessels present on site, which will be on site for the duration of the Neart na Gaoithe Offshore Wind Farm construction period. The guard vessel is either:

    • Artemis, call sign MVIX5;
    • Tranquillity S, call sign MJUH9 or
    • Seagull, call sign MVBO2.
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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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    MacCulloch Area – Location of Donan (Dumbaton/GP3) Gas Export Tie-In Skid

    Post decommissioning of the MacCulloch FPSO / Field in UKCS Block 15/24, a Guard Vessel is no longer in position at the location of the Tie-In Skid at MacCulloch 

    After the decommissioning of the MacCulloch FPSO / Field in UKCS Block 15/24, a Guard Vessel is no longer in position. 

     

    The Donan (Dumbarton) Field, located in UKCS Block 15/20, has an out of use Gas Export pipeline (PL2324) which is still connected to a Tie-In Skid located within the previous MacCulloch subsea 500m zone. 

     

    Please be aware that this subsea Tie-In Skid remains in place at this location.  The structure has been notified and recorded on the NDR / FishSafe websites since 2006/07, but has been previously monitored by the guard vessel.

     

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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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    Plugged and Abandoned Well : Alwyn South

    Alwyn South UKCS 3/9 : Abandoned Wellhead (3/9a-11)

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

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    Coils of Steel Rope - Neart Na Gaoithe Offshore Wind Farm

    The Glomar Wave has discovered two seabed hazards, within the boundaries of the Neart na Gaoithe Export Cable Corridor. A 50-metre exclusion zone is requested around each of the following locations for safety reasons, until they can safely be removed.

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    Freespans - Breagh Pipelines

    Two freespans have been identified on the 20” gas export line (PL2768). Please exercise caution in this area.

    Start Position End Position

    Length (m)

    Height  (m)

    54°36.952'N 00°14.608'E 54°36.952'N 00°14.599'E 23.15 1.00
    54°39.576'N 00°49.814'W 54°39.577'N 00°49.827'W 30.37 1.00

     

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    Pipeline Span - PL3088, Cygnus Field

    The PL3088 Cygnus Export Pipeline Span located ~21km South West of Neptune’s Cygnus Alpha Complex.

    The PL3088 Cygnus Export Pipeline Span located ~21km South West of Neptune’s Cygnus Alpha Complex, as reported during the 2019 pipeline inspection campaign. The 29m span length and 0.26m span depth shown below could present a Hazard to Fishing.

     

    Start Position End Position Length (m) Height (m)
    54º27.672’N   02º01.612’E 54º27.664’N   02º01.589’E 29m 0.26m

     

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    Exposed Cable Sections - EirGrid East West Interconnector

    Following a recent marine survey along the route of the EirGrid East West Interconnector power cable, is was found that the cable is currently exposed at two locations within UK 12-mile territorial waters fishery limit off the North Wales coast.

    In the interests of maritime safety, mariners/fishermen are advised not to anchor, trawl or deploy bottom contact fishing equipment in the vicinity of the EirGrid East West Interconnector power cable route and within the boundary box of the exposed cable sections as detailed.

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    Breagh Pipelines - Exposed Fibre Optic Cable

    The Breagh fibre optic cable (PL2770) is exposed on the seabed along various stages of the route between Redcar and the Breagh A platform.

    A scallop dredger became snagged on an exposed section of the fibre optic cable in June 2019 causing serious damage to the fibre optic cable and subsequently had to abandon retrieval of his gear for safety reasons.  This notification is made to the fishermen, operating between Redcar and the Breagh A platform, to be advised that the fibre optic cable represents a serious snag risk to both scallop dredgers and static gear fishing in the vicinity of the line.

     

    Fishermen are advised to stay away from the line to avoid the risk of becoming snagged on the unburied sections of cable.

     

    Breagh Alpha Platform 54°35.693'N 000°25.926'E
    IP1 54°36.372'N 000°24.471'E
    IP2 54°37.462'N 000°06.365'W
    IP3 54°38.642'N 000°40.856'W
    IP4 54°39.893'N 000°55.992'W
    IP5 54°37.757'N 001°04.765'W

     

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    Cable spans

    Surveys at Greater Gabbard show that there are 8 free-spans which are listed below.

    Location

    Span Length (m)

    Span Height (cm)

    Start of Span

    End of Span

    L1 cable

    6

    0

    52° 12.284'N 001°39.364'E

    52°12.283'N 001°39.369'E

    L1 cable

    8

    13

    52° 12.271'N 001°39.434'E

    52°12.270'N 001°39.441'E

    L1 cable

    8

    20

    52° 12.064'N 001°40.559'E

    52°12.061'N 001°40.565'E

    L2 cable

    15

    5

    52° 12.128'N 001°40.524'E

    52°12.124'N 001°40.535'E

    L2 cable

    8

    76

    52° 12.119'N 001°40.560'E

    52°12.118'N 001°40.567'E

    L3 cable

    3

    11

    52° 12.169'N 001°40.502'E

    52°12.169'N 001°40.504'E

    L3 cable

    13

    34

    52° 12.148'N 001°40.594'E

    52°12.146'N 001°40.604'E

    L3 cable

    17

    10

    51° 59.194'N 001°57.431'E

    51°59.187'N 001°57.442'E

     

    Whilst the results continue to be processed, Balfour Beatty have asked that in the interest of safety and the integrity of the cable, extreme caution be used when Fishing near the export cables and that Fishermen refrain from using towed gear across the export cables wherever possible.

     

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    Exposed sections of cable

    Surveys at Gunfleet Sands offshore wind farm have illustrated that some array/in-field cables are lying exposed on the seabed and are no longer buried and there is one freespan. These may represent a hazard to fishing.

    These are the following cables located in the eastern part of Gunfleet Sands 1 and the north eastern part of Gunfleet Sands 2.

     

    Location

    Exposure Length (m)

    Start of Exposure

    End of Exposure

    Between turbines C06-D06

    4

    51°44.447'N 01°15.045'E

    51°44.445'N 01°15.046'E

    Between turbines F06-F07

    23.7

    51°44.204'N 01°16.057'E

    51°44.209'N 01°16.076'E

    Between turbines F07-F08

    78.4

    51°44.471'N 01°16.744'E

    51°44.448'N 01°16.688'E

    Between turbines F08-F09

    851.7

    51°44.485'N 01°16.777'E

    51°44.726'N 01°17.398'E

    Between turbines G06-G07

    21.7

    51°44.008'N 01°16.270'E

    51°44.002'N 01°16.255'E

    Between turbines G07-G08

    21.9

    51°44.273'N 01°16.948'E

    51°44.267'N 01°16.932'E

    Between turbines G08-G09

    20.7

    51°44.276'N 01°16.953'E

    51°44.280'N 01°16.969'E

    Between turbines G08-G09

    16.6

    51°44.522'N 01°17.591'E

    51°44.527'N 01°17.603'E

     

    There is a freespan at the following array Cable Position:

     

    Location

    Exposure Length (m)

    Start of Exposure

    End of Exposure

    Between turbines C06-D06

    4

    51°44.447'N 01°15.045'E

    51°44.445'N 01°15.046'E

     

     

     

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    Exposed cable and lost fishing gear

    Exposed section of cable and lost fishing gear.

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    Exposed Cable Section (SHEFA)

    There is an exposed section on the SHEFA cable coming out of Orkney between the two positions below.

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