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OBN seismic survey - Martin Linge Field
Node-on-a-rope seismic survey over the Martin Linge Field. Up to 7700 seismic nodes are to be laid on the seabed. *Please avoid this area while the survey is ongoing.*
Survey to be carried out by the vessels SW Vespucci, SW Amundsen, Ocean Dee and Thor Alpha.
SW Vespucci will lay nodes on the seabed around the Martin Linge platform and Martin Linge FSO. The nodes are organised in a series of 27 lines in the NE-SW direction. On each line, there will be a node every 25m. Nodes lines are 400m apart.
When deploying the nodes, SW Vespucci will be very restricted in her manoeuvrability. She will have nodes, ropes and weights being deployed from her stern at a speed of 0.5-2 knots.
After nodes have been deployed SW Amundsen will then deploy 2 seismic sources and fire shot points every 25m over the whole area at an average speed of 4.5 knots. Shot points are also fired along straight lines in the NE-SW direction. The source lines will be 100m apart. The towed equipment behind Vespucci when acting as source vessel will measure approximately 200m x 100m (LxW).
Ocean Dee and Thor Alpha will act as support and escort vessels for SW Vespucci and SW Amundsen during the survey.
SW Vespucci: Call Sign 5BXF2 - IMO 9452971 - vesoff@shearwatergeo.com - +47 5699 9697
SW Amundsen: Call Sign 5BXE2 – IMO 9452969 – amuoff@shearwatergeo.com - +47 5699 9723
Thor Alpha: Call Sign OZ2070 – IMO 9458559 - thoralpha@thor.fo - +44 20 78 58 56 99
Ocean Dee: Call Sign ZDJY8 – IMO 9486037 - dee.bridge@atlantic-vessel.com - +47 2396 1139
See detailed map on our bulletin website
Brent North North Anchor Pre-lay - Stena Don MODU
Anchors to be installed and bouyed off in advance of the Stena Don MODU rig move. Note the bouys on the water may be in a different position to the anchors and the sea bed.
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Rig - Noble Innovator
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig - COSL Promoter
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig - Deepsea Stavanger
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig - Deepsea Nordkapp
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig - Noble Lloyd Noble
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig - Valaris 120
Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending hundreds of metres outside this zone.
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Rig - Swift 10
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig - Island Innovator
Arrival of the Island Innovator Rig. Island Innovator conducting well interventions at well's E1 and T3y.
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Shelf Drilling Perseverance (SDP) at the Goddard Well Location
The SDP is planned to be positioned at the Goddard well location from the 27th of June till the 31st of December 2023.
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Geophysical Survey - Victory Well Location
A geophysical, geotechnical and environmental survey will be conducted at the Victory location and pipeline routes to support future development activities. The survey will include AUV and 2D high resolution seismic survey operations and will be conducted by the MV Fugro Venturer
Survey will consist of:
Site Survey with towed 2D seismic– for the emplacement of a semi-submersible drilling rig
Route Surveys with AUV – one pipeline route from the Proposed Victory Well Location to the tie lin location and one umbilical route from the Proposed Victory Well Location to the tie in location.
Shallow geotechnical sampling along the proposed pipeline routes
Environmental sampling
See detailed map on our bulletin website
Geophysical Survey - Penguins Field
A rig site survey is to be conducted over the Penguins field, UKCS Block 211/13a. The survey is for the emplacement of a semi-submersible drilling rig. The survey will be conducted by the Fugro Venturer
Geophysical data acquisition will comprise a 6.3km x 4.0km survey area, utilising multibeam echo sounder and side scan sonar. Five 2DHR multichannel seismic lines will also be run.
See detailed map on our bulletin website
Irish Sea Pioneer rigmove from Hamilton to Douglas Accomodation
Irish Sea Pioneer Rig Move from the Hamilton Platform to the Douglas Platform (DA). Irish Sea Pioneer to be combined operations with the Douglas Platform(DA) for an estimated 7 Days
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Rig Move - Irish Sea Pioneer
Irish Sea Pioneer Rig Move from the Lennox Platform to the Hamilton Platform. Irish Sea Pioneer to be combined operations with the Hamilton Platform for an estimated 50 Days
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Stena Don MODU P&A Activity - Gannet GB01
Decommissioning of Gannet GB01 (21/25-B1z) using the Stena Don MODU. Note that the anchors and lines extend beyond the Stena Don500m zone.
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Well-Safe Defender - Chestnut Field
The Well-Safe Defender will move from Invergordon to the Chestnut field on or around 28th March 2023 to undertake well plug and abandonment. This date is subject to change depending on weather and operational requirements.
The Well-Safe Defender will move from Invergordon to the Chestnut field on or around 13th April 2023 to undertake well plug and abandonment. This date is subject to change depending on weather and operational requirements. The rig will initially be at the 18/19z well location.
The rig will move from the 18/19z well location or or around 8th June 2023.
See detailed map on our bulletin website
Pre-laid Anchors - Guillemot
Two sets of rig anchor patterns (each set contain eight anchors with chains) have been pre-laid for fore coming well intervention work scopes.
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EOR Flowlines and Umbilical Installation - Captain Field
Deep Explorer CSV will mobilise early June to install 3 flowlines to Area D and 3 flowlines to Area E. A riser umbilical will be installed to BLPA and two infield umbilicals will be installed, one to Area D and one to Area E.
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PL20 Flushing works
installation of subsea PLR's to flush and pig pipeline to platform and to shore. Divers will be used for all SS operations
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Rig Move - Stena Spey to K2 Field
The Stena Spey MODU will be drilling in the K2 field on behalf of Ithaca Energy for approximately 41 days. The drilling operations are expected to commence around 5th June 2023.
Ithaca Energy will be using the Stena Spey to drill a well in the K2 Field. The drilling campaign is planned for 41 days commencing June '23, with the anchors pre-layed prior to rig arrival. A gaurd vessel will be at the location from when the anchors are pre-laid until the Stena Spey arrives on location. The K2 field lies within the UKCS block 22/14c, approximately 235km NW from Aberdeen.
See detailed map on our bulletin website
Decommissioning - Gawain subsea infrastructure
The HAEVA Jackup Barge will support the decommissioning of the Gawain Subsea infrastructure.
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DP3 and DP4 Decommissioning Jackets Removal: Preparations - South Morecambe Field Irish Sea
Pre-removal preparations by multi-purpose vessel and construction support vessel at DP3 and DP4 jackets, South Morecambe Field, East Irish Sea
The Bay Towage - operated MV Torch multi-purpose vessel working on behalf of Spirit Energy is scheduled to mobilise from the Port of Barrow to undertake a programme of cardinal buoy system (AtoN) removal at each of the DP3 and DP4 jackets during an operational window opening on 15th May 2023 and closing approximately one month later (depending on the metocean conditions encountered during the period). The 4 no. buoys, one each at the points of the compass, and currently installed at ca. 400 m radius from each jacket structure, will be removed. The programme at each jacket will take ca. 1 day to execute.
The Allseas - operated Oceanic construction support vessel working on behalf of Spirit Energy is scheduled to mobilise from Rotterdam to undertake pre-removal preparations to each of the DP3 and DP4 jackets as soon as 2nd June. The preparations at each jacket will take up to ca. 21 days.
See detailed map on our bulletin website
Geotechnical Survey - Devils Hole (block 27/5)
The Geoquip Marine Seehorn (call sign 5BSW5) is scheduled to undertake Geotechnical survey work at the Devils Hole location (block 27/5), between w/c 05/06/23 and 30/06/23.
On behalf of the Licencee (North Sea Natural Resources), Three60 Energy have contracted the Geotechnical Vessel, Geoquip Marine Seehorn (call sign 5BSW5), to undertake drilling and sampling operations at 3 locations (with a 150m radius), at block 27/5 (Devils Hole).
Work is anticipated to take up to 5 days and is scheduled between w/c 05/06/23 and 30/06/23.
See detailed map on our bulletin website
Well Tie-in Operations - Apache STORR 3
Apache North Sea will be using the DSV Seven Atlantic in early June 2023 to assist with divers for the STORR 3 Well Tie-in Operations. Diving Operations from the DSV Seven Atlantic for the STORR 3 Well tie-in Operations within the STORR 500m zone
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Cable Route Survey - Central North Sea Electrification
Ocean Researcher is scheduled to complete a cable route survey from the a Central North Sea 'Hub' location to a landfall area offshore Peterhead. Operations are scheduled to resume last week June 23 and are anticipated to take ~9 days to complete. The vessel shall utilise hull mounted MBES and sub bottom profiler and be towing a sonar fish and magnetomer. In addition seabed samples and camera transects shall be aquired along the proposed cable routing to determine seabed habitat.
NOTE NEAR SHORE ROUTING COORDINATES TO BE FURTHER CONFIRMED
See detailed map on our bulletin website
Environmental Baseline & Habitat Assessment Survey - Viking Carbon Capture & Storage
Ocean Researcher is scheduled to perform EBS & HAB Assessment Survey in the Viking area. Vessel shall utilise hull mounted MBES, Sub bottom profiler and being towing a sonar fish and magnetometer. Further seabed sampling and camera transects shall be aquired throughout the greater working area. Operations are ~4 days and scheduled to commence approx 25th July 23
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Seabed Surveys - Balmoral Area
Ocean Researcher shall perform analogue seabed surveys at the Balmoral area from ~mid July 23. Vessel shall aquire seabed bathymetry and features data utilising a MBES, side scan sonar, magnetometer and sub bottom profiler. All vessels are requested to maintain a wide berth during survey operations. ~7days operations remain.
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Environmental Baseline & Habitat Assessment Survey - Solan Field
Ocean Researcher shall be performing a Geophysical and environmental Seabed Survey at the Solan Field. Vessel scheduled to perform works in early July. Duration ~3-4days subject weather
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Geophysical Site Survey Operations - Greater Britannia Area
Survey Vessel Ocean Reliance shall be operating within the Greater Britannia area from ~1st June until ~mid August 23, conducting shallow seismic operations.
Vessel shall be towing a 1200m shallow seismic streamer, side scan sonar fish and magnetometer. All vessels are requested to maintain a wide berth.
Three site surveys are to be aquired;
Leverett - 20KM X 20KM Greater working area - (Total Operational duration, subject weather ~ 12 Days)
Brodgar - 15KM x 15KM Greater Working area - (Total Operational duration, subject weather - 10 Days)
Gilderoy & Streambeacon - 25KM x 25KM Greater Working Area - (Total Operational durationm subject weather - ~17 Days)
See detailed map on our bulletin website
Rig - Maersk Resilient
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig Move - Ocean Great White from Ben Lawers to Schiehallion West Drill Centre
Please be advised that the moorings as detailed in this notice have been installed at the existing Schiehallion West Drill Centre, circa 2 nautical miles SW of the Schiehallion Glen Lyon FPSO. The moorings include seabed and mid-line buoys. The Semi-submersible rig 'Ocean Great White', is now located at Schiehallion West. The rig is due to remain on site for approximately 2-3 months.
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Rig Location - Ocean Endeavor
The Ocean Endeavor is drilling a development well at the Gannet F location with a 12-anchor spread. The Ocean Endeavor rig will be drilling a development well at the Penguins location at Drill-Centre #7. It has a 12-anchor spread, which extend subsea up to 1.5km from rig centre. The existing pre-lay submission will be retracted once this submission is in place. 2 Wells will be drilled from this location, expected to be concluded in the D50 case 1st October.
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Rig - COSL Innovator
Oil & gas rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig - Valaris Gorilla VI
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Anchor handling operations at Buzzard Northern Terrace Manifold location
Rig (COSL Innovator)on location as of 15th May 2023 at 21:30 hours. Rig anchor handling and cross-tensioning complete at Buzzard Northern Terrace Manifold location at 17th May 2023 at 16:45 hours.
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Seismic Survey - NVG North - Northern North Sea - Norway
Amazon Warrior is conducting a 3D seismic survey in the Northern North Sea between UK quads 220 & 221 and Norwegian quads 0033-0036 & 6201-6204 between April and June 2023. The vessel will be towing 12 8km long seismic receivers at a depth of 18m and will have restricted manoeuvrability.
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Seismic Survey - NVG South - Northern North Sea
Amazon Warrior is conducting a 3D seismic survey in the Northern North Sea between UK quads 9 & 10 and Norwegian quads 24, 25 & 26 between June and September 2023. The survey vessel will be towing 12 8km long seismic receiver cables at a depth of 18m and will have restricted manoeuvrability.
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GEAD Infill Pipeline - Golden Eagle Northern Drill Centre
CNOOC will be installing a production jumper and associated infrastructure within the 500m safety zone of the Golden Eagle Northern drill centre (NDC) manifold in block 14/26a which will connect the recently completed NP4 well to the NDC manifold. Mobilisation of the Seven Kestrel is expected on 29th May with earliest commencement is 30th May 2023.
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Dropped Pipeline - Carrack QA Platform
Dropped Pipeline 16 mtr x 4" section of redundant Pipeline resting on seabed. Plans to recover
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DSV Campaign PL335 Project - Ninian Central Platform
Seven Atlantic (Call Sign 2CBP2) will be carrying Project work for the reinstatement of PL335 in the vicinity of the Ninian Central Platform, as noted below: Dates = 18th June to 8th July 2023 - Duration expected to be approx. 20 Days
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Offshore Site Investigation - Victory Field Development
An offshore geotechnical site investigation is to be conducted for the proposed Victory field development off the west coast of Shetland in block UKCS 207/1a. The survey comprises deep geotechnical sampling and in-situ testing, geotechnical laboratory testing and reporting required for the interpretation of design parameters for pipeline and foundation design. The survey will be conducted by the MV Fugro Quest
The scope of work for the Victory Field Development geotechnical site investigation will be executed by the Fugro Quest. The scope of work comprises four continuous PCPT boreholes to a target depth of 30 m below seafloor and two composite boreholes to a target depth of 30 m below seafloor, in water depths ranging from 130 – 300 m LAT
See detailed map on our bulletin website
Rig - Transocean Spitsbergen
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig - Askepott
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig - Noble Resolve
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig - Shelfdrilling Winner (ex Noble Sam Turner)
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig - Transocean Norge
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig - Askeladden
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig Move - Deepsea Atlantic
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig - Seajacks Hydra
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig - Seafox 4
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig - JB-115
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Buzzard NTM Drilling - COSL Innovator
The COSL Innovator will be drilling 2 wells at the Buzzard Northern Terrace Manifold. Expected spud of the first well is expected on 29th May and completions of the second well expected around 23rd November.
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4D Survey - Edradour-Glenlivet
We will be carrying out 4D Seismic Survey work within the WOS Edradour-Glenlivet area noted below: Between the Dates = 15th July to 10th August 2023 (expected to be approx. 25 Days )
Vessels:
- Seismic Vessel Amazon Conqueror (Call Sign C6GJ4)
- Support Vessel Ocean Mermaid (Call Sign C6BI8)
- Chase Vessel Linde G (Call Sign V7A2093)
Towed Equipment:
Ten 5100m long streamers will be towed behind the Amazon Conqueror covering a 1km wide by 6km long area behind the vessel.
Equipment towed at depths up to 25m below the surface at 4 to 5 knots.
For the duration of the Project, there will be 2 x Transponders moored 5m above the seabed at the following locations:
(co-ords in ED50 30N)
EG Transponder 1 542434 E 6746027 N
EG Transponder 2 549819 E 6775980 N
Contact for further details:
Wilfried Vallerin TEPUK Project Manager : ot.uk-wos23-gac@totalenergies.com
Ryad Bellahsene TEPUK Geophysical Manager : ryad.bellahsene@totalenergies.com
See detailed map on our bulletin website
4D Survey - Laggan-Tormore
We will be carrying out 4D Seismic Survey work within the WOS Laggan-Tormore area noted below: Between the Dates = 18th May to 11th July 2023 (expected to be approx. 54 Days )
Vessels:
- Seismic Vessel Amazon Conqueror (Call Sign C6GJ4)
- Support Vessel Ocean Mermaid (Call Sign C6BI8)
- Chase Vessel Linde G (Call Sign V7A2093)
Towed Equipment:
Sixteen 5100m long streamers will be towed behind the Amazon Conqueror covering a 1km wide by 6km long area behind the vessel.
Equipment towed at depths up to 25m below the surface at 4 to 5 knots.
For the duration of the Project, there will be 2 x Transponders moored 5m above the seabed at the following locations:
(co-ords in ED50 30N)
LT Transponder 1 489298 E 6742607 N
LT Transponder 2 506941 E 6763739 N
Contact for further details:
Wilfried Vallerin TEPUK Project Manager ot.uk-wos23-gac@totalenergies.com
Ryad Bellahsene TEPUK Geophysical Manager ryad.bellahsene@totalenergies.com
See detailed map on our bulletin website
Survey - Liverpool Bay Area
Lennox: Lennox & SS Well 15-6z (2.5km x 3km box). Pipelines from Lennox to 15m water depth Export Pipeline. Export pipeline from Talacre Beach up through Gwynt-y-mor windfarm to the edge of the traffic management zone to the south of Douglas.
Works are:
- Geophysical
- Environmental grabs and camera
4D Survey - Gudrun Field
Equinor will conduct a seismic 4D survey over the Gudrun field in Norway, extending into UK sector on block P108 & P313. 2 x seismic vessels will be used, Ramform Vanguard and PGS Apollo. Ramform Vanguard will be towing a streamer spread of 900m wide and 6000m long behind. The seismic fleet will be assisted by 1 Supply vessel Thor Freyja and 1 escort vessel Sanco Sea.
The 4D seismic survey will consist of approximately 254 full fold sqkm, 56 sail lines with an average full fold line length of ~17km.
2 seismic vessels will be used:
- Ramform Vanguard (Vessel identification 9188714, call sign LANM8) and
- PGS Apollo (Vessel identification 9378228, call sign C6ZH9)
Ramform Vanguard will be towing a streamer spread of 900m wide and 6000m long behind (12x75mx6000m) towed at 20m depth and will be sailing at 4.5 to 5 knots with restricted manoeuvrability. The seismic fleet will be assisted by:
- 1 x Supply vessel Thor Freyja and
- 1 x escort vessel Sanco Sea
Rig - Ocean Patriot
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Temporary switching off of platform Navigation Aids (foghorns/lanterns) - Serica Bruce platforms
The Serica Bruce platform is upgrading its platform Navigation aids from 3rd-30th June 2023. During this time our Main/Secondary foghorns and Main/Secondary lanterns will be turned off but all main and emergency lighting will continue to operate as normal. We will continue to monitor vessel movements via our standby vessel (EERV) and through platform-based Radar Early Warning System (REWS).
The Serica Bruce platform is upgrading its platform Navigation aids from 3rd-30th June 2023. During this time our Main/Secondary foghorns and Main/Secondary lanterns will be turned off but all main and emergency lighting will continue to operate as normal. We will continue to monitor vessel movements via our standby vessel (EERV). Note that the potential for a vessel colliding with any of the Bruce platforms is detected primarily through platform-based Radar Early Warning System (REWS) and is supported by the marine radar on the ERRV in accordance with the Marine Operations Manual (SER UK PRO 5.6 1000) and Collision Avoidance System (SER-BRU-P5 ) which details the process undertaken for identification and assessment of the ship collision risk. Note we have submitted a variation to our Consent to Locate (CtL)with OPRED/DESNZ and informed the NLB.
See detailed map on our bulletin website
OBN Survey - Gullfaks
Node-on-a-rope seismic survey over the Gullfaks Field. 3400 seismic nodes are to be laid on the seabed. Please avoid this area while the survey is ongoing.
Survey to be carried out by the vessels SW Vespucci, Ocean Dee and Thor Alpha.
SW Vespucci will lay nodes on the seabed around the 3 Gullfaks platforms. The nodes are organised in a series of 29 lines in the E-W direction. On each line, there will be a node every 25m. Nodes lines are 400m apart.
When deploying the nodes, Vespucci will be very restricted in her manoeuvrability. She will have nodes, ropes and weights being deployed from her stern at a speed of 1-2 knots.
After deploying the nodes, Vespucci will then deploy 2 seismic sources and fire shot points every 50m over the whole area at ana average speed of 4.5 knots. Shot points are also fired along straight lines in the E-W direction. The source lines will be 100m apart. The towed equipment behind Vespucci when acting as source vessel will measure approximately 200m x 100m (LxW).
Ocean Dee and Thor Alpha will act as support and guard vessels for SW Vespucci during the survey.
SW Vespucci: Call Sign 5BXF2 - IMO 9452971 - vesoff@shearwatergeo.com - +47 5699 9697
Thor Alpha: Call Sign OZ2070 – IMO 9458559 - thoralpha@thor.fo - +44 20 78 58 56 99
Ocean Dee: Call Sign ZDJY8 – IMO 9486037 - dee.bridge@atlantic-vessel.com - +47 2396 1139
See detailed map on our bulletin website
Rig - Noble Reacher
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Shallow Pipeline Protection - Bittern W/Inj PL1650 & Gas Lift PL1649
The 12-inch water injection pipeline PL1650 and piggybacked 4-inch gas lift pipeline PL1649 are in an approximately 1m deep seabed crater and covered by grout bags.
The 12-inch water injection pipeline PL1650 and piggybacked 4-inch gas lift pipeline were in freespan for approximately 10 metres with a span height of approximately 1 metre. The freespan has been filled with grout bags and the pipelines covered as far as practibale by divers.
An approximately 1m deep crater remains and the pipeline protection is now diver placed grout bags.
See detailed map on our bulletin website
Seabed hazards following removal of Banff FPSO anchors & moorings
A series of deep, steep sided trenches at mooring line touchdown points. 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, cut into the clay seabed.
See detailed map on our bulletin website
ERDA Jack-up Barge at Ravenspurn South Charlie
Please be advised that the ERDA Jack-up Barge is due to depart from Holland on Tuesday 9th May 2023 (dependent on weather), and transit to Ravenspurn South Charlie (RSC) in the Ravenspurn South (UKCS 42/30) field where it will commence well intervention work, with an estimated arrival of Wednesday 10th May 2023. The Jack-up Barge will remain at RSC until 16th July 2023.
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Rig - Transocean Enabler
This oil & gas drilling rig has moved to this new position. Rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig - Deepsea Aberdeen
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig - Prospector 1
This oil & gas drilling rig has moved to this new position. Rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig - Deepsea Yanti
This oil & gas drilling rig has moved to this new position. Rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Geotechnical survey by anchored vessel - Earn site
Up to 3 x 30 m deep boreholes will be drilled for geotechnical sampling. Vessel name is MV Investigator. The vessel has a 4-point mooring system, will have limited mobility and will maintain a 500 m exclusion zone.
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Rig - Noble Integrator (ex Maersk)
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Seismic Survey - Clair Field
Ocean-Bottom-Seismic survey over Clair and Clair-Ridge oil fields. The operation will involve placing seismic receivers (nodes) on the seabed and the use of a seismic source (airguns). Survey duration is estimated to be around 3 months - starting ~20th April 2023
The seismic survey over Clair and Clair-Ridge fields will utilize four (4) vessels (Normand Tonjer, Siddis Mariner, Oceanic Champion and Shemarrah II)
The survey will involve placing seismic recievers (nodes) on the seabed using two node handling vessels (Normand Tonjer & Siddis Mariner) and firing the seismic source from the Oceanic Champion. Shemarah II will be utilized as the guard vessel.
The survey is scheduled to start around 20th April and should be completed by the 31st July 2023.
See detailed map on our bulletin website
Snagging Hazard - NW Buchan Field (12 tonne anchor)
There is a 12 tonne anchor on the seabed in the following position. This is an anchor lost in 2013 or before and it should be noted this is NOT correctly charted on the current version of FishSAFE. Please exercise extreme caution in the vicinity.
Following a recent snagging incident in February 2023, it has become evident that this anchor has been incorrectly charted on the current and recent versions of FishSAFE. Please note that this is the correct position of the 12 tonne anchor lost in 2013 or before. This will be added to FishSAFE v46 to be released in the summer of 2023.
See detailed map on our bulletin website
Drilling Operations - Valaris 123 MODU on location to drill appraisal well 42/15a-H Crosgan
The drilling operations will be carried out using the Valaris-123. The operations and move are waiting on weather and planned to commence on the 16th March 2023 and the drilling program is estimated to take 75 days in total. This will include Hammering of the conductor and a Vertical Seismic Profile (VSP).
The 42/15a – Crosgan planned appraisal well will be drilled using the Valaris-123 self elevated jack-up rig and will be towed by three tug boats, into position over the proposed well. (42 15 a) Admiralty Chart Number 2182A .
Once in position the rig will pin down its legs on the seabed. Stabilisation materials (rock) may be required to stabilise the legs. The 30" conductor will be pilled in place to a depth of run at ±70 m (230 ft) Piling of the conductor will be undertaken using a hammer and is expected to last up to 8 hours. Drilling operations at Crosgan are expected to take 75 days. Vertical Seismic Profile will be used to acquire data on the well, which will involve the use of a seismic array from the jack-up rig into the wellbore. The VSP operation is expected to take 24 hours to complete and will involve a four-gun array.
See detailed map on our bulletin website
Subsea Decommissioning - Don and Miller
Construction Support Vessels, Normand Jarstein and Edda Freya, will be carrying out decommissioning activities at the Don and Miller Fields. First campaign is scheduled to mobilise early April with work continuing through to early September
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Decommissioning/IRM Activities - Central North Sea & Southern North Sea
The CSV Boka Southern Ocean will be completing decommissioning scopes at SNS, Balmoral, Brenda, Huntington and MacCulloch. The DSV Boka Da Vinci will be completing decommissioning activities at SNS, Balmoral, Huntington and MacCulloch, and IRM activities at Joanne, Johnston and Catcher.
The CSV Boka Southern Ocean is due to mobilise in Aberdeen on 25th May 23 to undertake a 194 day offshore campaign to execute the Central North Sea and Southern North Sea Decommissioning Scopes. The vessel will be working at SNS, Balmoral, Brenda, Huntington and MacCulloch 500m safety zones. Throughout the campaign, port calls will be completed to/from Lerwick and Blythe for the waste disposal activities. Upon completion of the offshore campaign, the vessel will demobilise in Peterhead.
The DSV Boka Da Vinci is due to mobilise in Sunderland on 3rd April 23 to undertake a 245 day offshore campaign to execute the IRM and Central North Sea and Southern North Sea Decommissioning Scopes. The vessel will be working at SNS, Joanne, Johnston, Catcher Balmoral, Huntington and MacCulloch 500m safety zones. Upon completion of the offshore campaign, the vessel will demobilise in Sunderland
See detailed map on our bulletin website
Rig - Scarabeo 8
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Transocean Barents at Benriach
The Transocean Barents rig will be moored at the Benriach location from March 2023 to September 2023. Eight (8) anchors will be deployed up to 2100m from the rig at the locations noted. Vessels are requested to stay clear of the mooring pattern with closest approach 2500m (1.35 NM) from Rig.
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Brent Subsea Infrastructure Decommissioning Programme
Carrying out Subsea Decommissioning programme in the Brent Field. The Subsea Infrastructure Decommissioning project intends to conduct decommissioning scope on Brent infrastructure in 2023. This will entail decommissioning pipelines/umbilical and power cables (by various methods) and the removal of subsea infrastructure, mattresses, grout bags, and subsea debris.
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Hazard - Boulder (T22-0938) North of Fulmar
During debris recovery, a large boulder was observed by the ROV. Boulder dimension 3.0m x.1.6m x 0.6m.
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Jacky Field Decommissioning Subsea Structures
Items still on seabed prior to final decommissioning of field.
Items still on seabed prior to final decommissioning of field-
• Rock berm covering conductor stump cement patio.
• 2 x pipeline ends protected with Rock Filter Units
• 1 x Power Cable End
See detailed map on our bulletin website
Rig - Valaris 72
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig - Linus
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig - Noble Resolute (ex Maersk Resolute)
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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BP-7 wellhead and Xmas tree
BP-7 is a new subsea oil well. The wellhead supports a Xmas tree and integrated "fishing friendly" wellhead protection structure. BP-7 is a new subsea oil well. The wellhead supports a Xmas tree and integrated wellhead protection structure. The wellhead protection structure has legs that penetrate the seabed and a ‘fishing friendly’ profile with sloping sides designed to deflect trawls and offer protection against dropped objects
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Plugging & Abandonment of Wells via use of Jack-Up Vessel
Jack up vessel Valaris Norway will be towed alongside the 47/8A platform, once in location it will 'jack up' and connect to the 47/8A via a 'walk to work'. Once connected a series of works will be undertaken to enable the plugging and abandonment of the wells associated with the 47/8A
Jack up vessel Valaris Norway will be towed alongside the 47/8A platform, once in location it will 'jack up' and connect to the 47/8A via a 'walk to work'. Once connected a series of works will be undertaken to enable the plugging and abandonment of the wells associated with the 47/8A
See detailed map on our bulletin website
Wells Abandonment and Wellhead Severance - Platypus 48/01a 5 & 48/01a 6
Wells to be permanently abandoned and wellheads removed. Wells to have shallow environmental plugs set and wellheads severed below the mudline and recovered, followed by debris survey to ensure clean seabed.
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Rig - West Phoenix
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Drilling Activity - Breagh A with the Noble Resilient
The Noble Resilient will attend the Breagh A platform from 27th Feb 2023 for a period of approximately 4 months in order to complete well intervention activities.
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Decommissioning - Elland Well
This is to decommission two wellhead conductors at the Elland well location using the Normand Jarstein.
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Rig move to Captain Field
The COSL Pioneer MODU will be drilling in the Captain field on behalf of Ithaca Energy for approximately 155 days. The drilling operations are expected to commence around 1st March 2023.
Ithaca Energy will be using the COSL Pioneer to drill EUB04i, EUC01i and EUC02i injector wells. Ithaca propose to batch drill the three wells. The drilling campaign is planned for 155 days commencing March '23, with the anchors pre-layed prior to rig arrival. The Captain platform ERRV will act as a gaurd vessel at the location from when the anchors are pre-laid until the COSL Pionner arrives on location. The Captain field lies within the UKCS block 13/22s, approximately 91km North of Aberdeen and 191km from the UK/Norway median line.
See detailed map on our bulletin website
Drilling Rig - Noble Hans Deul
The Drilling Rig Noble Hans Duel will be located next to the Blythe Platform for approximately 85 days from March 2023. The drilling rig Noble Hans Duel will be fully within the platform's 500m safety zone.
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Drilling Activity - Valaris 122 at Shearwater
The Valaris 122 (jack-up drilling rig) will be conducting drilling operations at the Shearwater field on the 30/22b-SW-IWA well. The Valaris 122 will be drilling as a standalone location in the Shearwater field on a single well campaign. The total duration of drilling and suspension activities is expected to last approximately 194 days.
Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
See detailed map on our bulletin website
Rig - Maersk Invincible
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Tolmount East Development Drilling
Scheduled drilling operations at the location are due to be concluded early Feb and the MODU Noble Innovator shall be removed from location. On conclusions of operations a statutory 500metre exclusion zone has been established. Further field development remains ongoing throughout the course of 2023, in support of tieing back the Tolmount East Well to the Tolmount Platform. All vessels are requested to maintain a wide berth and avoid deployment of static gear within ~1nm of the location.
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Rig - Paul B Loyd Junior
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig - 590021
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Lost core barrel - Abbey Field - Block 47/3
The core barrel of seabed sampling equipment has sheared while undertaking sampling in the Abbey field (Block 47/3) and is now sticking approximately 2.75 m out of the seabed.
Geotechnical survey activities are currently underway in the Abbey field, Block 47/3. While carrying out seabed sampling with a vibrocore, the core barrel sheared off and remains stuck in the seabed. The core barrel is a hollow cylindrical tube, with diameter of approximately 10 cm. It is estimated that the core barrel sticks out of the seabed and it is approximately 2.75 m proud of the seabed.
See detailed map on our bulletin website
Anchor on pipeline PL2104
Anchor discovered on pipeline during survey activities 17/12/2022. Approx dimensions L3.9M X W2.0m X H1.8m
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Drill collar on North Eigg well 3/24c-6
It is intended to leave the drill collar stump on the North Eigg well 3/24c-6. This will be +/- 20 ft above seabed and is 8” outer diameter. Well 3/24c-6 is located 40 m South of the 3/24c-6B well.
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Rig Move - Valaris V120 MODU at Talbot
Notice to alert sea users to drilling and completion operations at the Talbot subsea development well location, in block 30/13e, using the Valaris V120 MODU.
The Valaris V120 jackup drilling rig is currently on location at the Jade platform. It is due to complete operations on the current well at the end of January, then move to the Talbot subsea development well location, in block 30/13e, to commence drilling and completion operations on three wells.
See detailed map on our bulletin website
Wellhead Structure - N. Eigg 3/24c-6b
Left wellhead structure - CL/1317/0. The N. Eigg 3/24c-6b wellhead (DrilQuip 18-3/4" SS-15 Rigid Lockdown 15,000 psi) will be left in place once the well suspension operations have been completed. The wellhead height above the seabed is 9 ft (2.74 m). The N. Eigg (3/24c-6b) wellhead is subject to its own Consent to Locate for a Permanent/Fixed Structure on the seabed.
The N. Eigg 3/24c-6b wellhead Consent to Locate will become effective when the PBLJ departs the N. Eigg location and the 3/24c-6b well is left suspended.
See detailed map on our bulletin website
Deployment of Spherical Directional Waverider Buoy - Northern North Sea
Shell deployed a new wave buoy in the Northern North Sea on 05-October-2021. Colour: Yellow, Size: 0.9 diameter, Fl: 5 10s
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Rig - Well Safe Protector
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig - West Elara
This oil & gas drilling rig has moved to this new position. Rigs are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig - Seafox 2
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Rig - Maersk Innovator
This oil & gas drilling rig has moved to this new position. Rig are protected by a 500m safety zone and some may have anchors extending beyond this zone.
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Foinaven Buoyant Risers
The Foinaven FPSO has been removed from the field as part of a decommissioning project. Beneath the FPSO were 13 buoyant risers which remain in the water column. These contain buoyant sections which sit up to 160m above the seafloor within the 500m zone. These provide a significant snagging risk to any vessel operating in the area.
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Judy oil export tie in spool at NORPIPE wye - pipe exposure
Judy oil export tie in spool at NORPIPE wye - pipe exposure over ca 50m creating additional trawl hazard. Rock was removed from Judy oil export tie in spool at NORPIPE wye in mid 2022 in support of valve changeout at NORPIPE wye. Valve changeout has been delayed until 2025 at which point rock will be reinstated. Absence of rock poses an increased risk of snagging fishing nets and also of pipeline damage.
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Confirmation of Cardinal Buoys Deployment – at the Pickerill A Jacket
On the 29th March 2022, Leask Marine's C-Force completed its buoy deployment at 11:00 . The vessel Departed Pickerill A Field at 13:00 for transit to Great Yarmouth after the completion of work and arrived alongside at 20:00 the same day. This is a final notification to confirm the 4 cardinal buoys are in their final position and will remain in place until 30th June 2024 as per approval from ML/784/0.
Pickerill A former Platform Lat: 53° 32’ 57.0875” N Long: 01° 04’ 33.3425” E
The cardinal buoys will be deployed within the Pickerill 500 m zone at the following coordinates:
UPDATE: The latest version of the marine Licence accepts the 4 buoys final location is precisely as above.
See detailed map on our bulletin website
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
See detailed map on our bulletin website
Plugged and Abandoned Well : Sween
Sween UKCS 3/30 : Abandoned Wellhead (3/30-7)
No overtrawlability trial done yet, rough ground may be experienced.
See detailed map on our bulletin website
Plugged and Abandoned Well : Balvenie
Balvenie UKCS 3/14: Abandoned Wellhead (3/14d-18)
No overtrawlability trial done yet, rough ground may be experienced.
See detailed map on our bulletin website