Europe

• Region: North Sea
• Topics: Decommissioning
• Date: Mar, 2023

Decommissioning and P&A specialist, Mermaid Subsea Services UK, has been awarded a multi-well contract on behalf of North Sea operator following the completion of its inaugural vessel-based P&A campaign.

The two-year contract includes the decommissioning of 22 wells, representing the integrated subsea provider’s largest contract to date, and the creation of 12 new roles at Mermaid’s Aberdeen headquarters.

Scott Cormack, Mermaid Regional Director, commented, “We are delighted to announce the award of this contract, which follow hot on the heels of our well P&A activity during Q4 2022 with collaborative partner, Exceed.

“This project serves to underline the reputation we have so quickly gained for safe, efficient and cost-effective vessel-based well P^&A, which draws upon or core team’s combined track record across the decommissioning sector.”

According to the company, activity relating to the newly acquired contract is already underway.

• Region: North Sea
• Topics: Decommissioning
• Date: Feb, 2023

Rovco has successfully completed a contract awarded by Well-Safe Solutions to support its plug and abandonment and decommissioning operations in the southern North Sea.

Rovco provided Well-Safe Solutions with field survey operations, to ensure the safe and efficient decommissioning of a platform which ceased production in 2015. Last year, Well-Safe Solutions signed an agreement with Ithaca Energy to plug and abandon six wells on the platform and work will continue to be carried out by the company this year.

The project utilised the VOS Star, on charter from Vroon, equipped as standard with Seaeye Leopard work-class ROVs, fitted with multi-beam echo sounders, the highest quality 4K stereo cameras, manipulators, recovery basket and photogrammetry technology to carry out specialist hydrographic surveys and underwater asset inspections.

As part of the project, the company supported the client with debris survey and clearance solutions in water depths of 20 to 30 metres, as well as habitat characterisation surveys to mitigate risk and eliminate uncertainty about seabed conditions prior to the client deploying a jack-up vessel at the site.

Using its innovative SubSLAM X2 technology, Rovco also performed jacket inspection operations, providing the client with highly detailed 3D models of the platform footings to precisely identify any scouring across the structure.

Powered by sister company Vaarst, SubSLAM X2 produces 3D reconstructions of underwater assets in real-time, from which users can take measurements with sub-millimetric accuracy. Mounted on an ROV, travelling dynamically at general visual inspection speed, SubSLAM’s ability to zoom in, rotate and fly means that it can provide full coverage of a structure from all angles, as well as the seabed and surrounding environment.

Simon Miller, Chief Revenue Officer at Rovco, commented, “Being awarded a second contract with Well-Safe Solutions underlines their confidence in Rovco’s proven track-record.

“Accurate data sets from subsea surveys and inspections is key to the safety and efficiency of their operations and they know they can rely on our people and our technology to provide the highest quality data in real-time.”

“We’re pleased to be able to play a continuing role in decommissioning and the energy transition in the North Sea, supporting Well-Safe Solutions in its quest to safely and cost-efficiently plug and abandon wells in the Southern North Sea.”

This is the second contract that Rovco has secured with Well-Safe Solutions, having previously performed survey work on an abandoned subsea wellhead in UK waters in 2021.

• Region: North Sea
• Date: Feb, 2023

Well-Safe Solutions has signed a multi-year framework agreement with Apache Corporation (now a subsidiary of APA Corporation) to decommission wells in the North Sea, as part of the company’s Plug and Abandonment Club offering.

The deal will provide Apache with access to the specialist decommissioning assets Well-Safe Defender and Well-Safe Guardia to complete the P&A work on its well stock.

Chris Hay, Director of Strategy and Business Development, Well-Safe Solutions, said, “We are ready to assist Apache with its well decommissioning requirements, affording it the flexibility to book its wells into our campaigns when required.

“Our multi-well, multi-operator P&A Clubs give our clients cost certainty and leverage the cumulative experience gained by our specialist decommissioning teams on both assets across hundreds of wells to date.”

Separate from the frame agreement, Apache has secured a slot for Well-Safe Solutions to plug and abandon subsea wells in the UK Continental Shelf. This work is expected to begin in 2024 as part of a continuous campaign, enabling Well-Safe Solutions to maximise schedule flexibility and improve efficiencies for the member companies within the campaign.

The P&A Club’s focus on operational and cost efficiency aligns with the industry regulator, the North Sea Transition Authority’s, target to reduce the cost of decommissioning upstream oil and gas infrastructure in the UKCS by 35% by the end of 2022.

• Region: North Sea
• Topics: Decommissioning
• Date: Feb, 2023

Data and subsea service provider, Reach Subsea ASA, has secured a decommissioning contract for work in the North Sea.

The contract represents about 40 project days for execution in Q1 2023, and will see the utilisation of the Olympic Delta vessel. Reach Subsea have an existing cooperation with Olympic Subsea for the vessel, and both parties have agreed to extend their collaboration for the entirety of 2023.

“The market activity is high, and we are pleased to see that we are able to secure contracts across a range of segments. Continuing the good cooperation with Olympic both on ROV services and joint marketing of vessels, shows that our common service offering has been well perceived by clients,” said Jostein Alendal, CEO of Reach Subsea.

The extended collaboration comprises an additional 150 days of frim work for the two ROVs currently mobilised on the vessel. Reach Subsea is contracted to provide this service to Olympic for the charter duration to a tier 1 oil and gas contractor.

• Region: North Sea
• Topics: Decommissioning
• Date: Feb, 2023

DOF Subsea has been awarded an Engineering, Preparatory works, Removal, Transportation, Recycling and Disposal (EPRD) contract by Norwegian energy giant Equinor Energy AS.

The contract is in relation to the Heimdal subsea decommissioning works and includes the recovery and disposal of approximately 2,000 tons of subsea equipment. The offshore work is scheduled in two main campaigns across three DOF vessels between 2024 and 2028, with project management and engineering work to start immediately. The preliminary work will be delivered by DOF’s expert cessation team based in Bergen, Norway.

Mons S. Aase, Group CEO, DOF, said, “I’m pleased that we are once again trusted to deliver a complex subsea project for Equinor. I look forward to completing the project successfully and safely.”

Heimdal is the Equinor-operated field in the North Sea, which has been operational since 1985. The contract states DOF Subsea are responsible for the removal, dismantling and recycling of the main platform topsides and jacket.

• Region: North Sea
• Topics: Decommissioning
• Date: Feb, 2023

Aker Solutions can now offer operators a Second Life Report on the raw materials a platform contributes to the circular economy as part of its decommissioning offering in light of the fact that 99% of a drilling platform can be recycled.

The report spotlights the quantity of materials yielded in decommissioning work, and for topsides with heavy lift records, that leads to a lot of valuable raw materials. Maintaining more sustainable economic activity relies heavily on reusing as many materials as possible, as far less energy is used in the recovery of recycled materials than in the production of newer ones. Steel recovered offshore has many unique qualities and uses that can be capitalised on.

However, the process of rendering these huge structures into salvageable materials can be a brutal endeavour. For example, on its final journey, the drilling platform used in the Norwegian Valhall oil and gas field was carried on the Pioneering Spirit heavy lift vessel only to be left at the Aker Solution’s Stord yard in May 2022 as large machines waited to demolish it. The 6,700 ton platform was first stripped of all hazardous materials and electrical waste before it was levelled by explosives. This process, however, speeds up the demo and makes it safer by bringing down heavy structures to ground level, avoiding the need to work from height.

The original Valhall installations have produced over one billion barrels of oil equivalent since the field entered production in 1982, with two platforms having been recycled at the Stord yard, and a third will be decommissioned later this year. While the original structures will continue on as raw materials, Aker Solutions has aided Aker BP in extending the life of the remaining Valhall centre for an extra 40 years.

Aker Solutions has already accumulated a pipeline of orders for structural teardowns in the North Sea, and already have some 40,000 tons of recovered hulks awaiting dismantling and recycling at the Stord’s yard.

• Region: All
• Topics: Decommissioning
• Date: Jan, 2023

Claxton, the University of Aberdeen, the National Decommissioning Centre and the Net Zero Technology Centre (which is providing funding and oversight), have continued to move ahead in the delivery of the Underwater Laser Cutting (UWLC) system, an alternative and clean underwater cutting technology ready to take the decommissioning market by storm. 

UWLC improves efficiency when used for downsizing activity or applicable subsea decommissioning scopes and offers the flexibility of deployment methods in storage ponds, tanks and offshore. It was noted by the partners that the technology has the potential to ‘revolutionise’ subsea cutting. 

The initial phase of the partnership, delivered between 2019 and 2021, saw the development of the UWLC system targeted at delivering offshore cutting trials in 70 metres seawater depth. The Net Zero Technology Centre funding supported partners in the development of underwater capable optics; the design and manufacturing of an underwater laser cutting head; procurement and packaging of a 15KW laser generator for offshore operations; and design and manufacture of control system software and hardware suitable for 50 bar hyperbaric conditions.

Successful delivery of this phase was demonstrated through subsea cutting performed at 70 metres seawater depth. This included 250 underwater cuts performed on structural steel up to 120 mm thick; Human Machine Interface (HMI) and 500 metre depth capable electronic control system; the design and manufacture of 500 metre depth rated subsea laser cutting head; and the system verified at technology readiness level 6 and suitable for further development. 

The next phase of the partnership is planned for 2023-24 and involved the development of the UWLC system targeted at delivering a cutting tool suitable for real offshore cutting scope. The Net Zero Technology Centre will provide funding once again for this stage and a Tier 1 oil and gas producer and vessel operator will also contribute. 

This phase will include a selection of suitable cutting opportunities; the development of the laser cutting head through the incorporation of lessons learned from phase 1; the development of a cutting tool to manipulate the laser cutting head to suit the cutting scope; and the integration of the HMI and electronic control from phase 1 into the intelligent cutting tool to optimise cutting head manipulation and performance.

The success of the second phase will be measured by performance on an actual offshore cutting scope against typical mechanical or abrasive cutting solutions. The objective is to demonstrate the system as a proven cutting technology for suitable applications, with the system being verified at technology readiness level 7 and suitable for further commercialisation.

“It is fantastic to be involved in such a great partnership and work with an inspiring team on this development project,” commented Craig Baxter – Decommissioning Technical Manager, Claxton. “The technology is showing great promise in delivering cross sector decommissioning work scopes. I am looking forward to delivering an offshore decommissioning work scope through 2023 with a view to commercialising the technology and opening it up as a cutting solution available to the oil and gas, nuclear and offshore wind decommissioning market.”

• Region: North Sea
• Date: Dec, 2022

Global well integrity company, Coretrax, has collaborated with Lee Energy Systems (LES) to deliver a one-trip solution for a major North Sea operator for its P&A campaign.

The collaboration aims to maximise operational efficiencies for the creation of solutions for remedial annular cementing and plug cementing. Coretrax’s CX-2 bridge plug and CX-RTP (retrievable test packer) were deployed with LES’ GATOR Hydromechanical Perforator in order to provide a single-trip system which successfully placed environmental caps across eight wells.

The combined technologies will save operators a total of seven hours in downhole trips.

“As essential decommissioning projects continue to take place across the North Sea, the campaign is a clear example of how our suite of technology, with support from our skilled partners, can service all aspects of the plugging and abandonment process to deliver a full turn-key service,” said John Fraser, Chief Executive Officer, Coretrax.

“In the current economic climate, reducing rig time can save operators considerable expenditure while also reducing project carbon emissions, working closely with Lee Energy Systems and the operator on this project we were thrilled to be able to develop a solution which delivered such significant efficiencies.”

Owner of LES, Paul Lee, commented, “On behalf of the entire Lee Energy System’s team, I would like to thank John Fraser and all the Coretrax team for their commitment and professionalism in seeing these operations through to fruition.

“LES is delighted with its technical relationship with Coretrax where it focuses on its best-in-class solutions as well as ourselves and bring the combination of these teams together. Continuing to improve on these solutions and innovations will continue to be the focus of our two companies. Our goal is to provide industry-leading solutions to this challenging, costly and most important end of well life cycle decom operations.”  

• Region: All
• Date: Nov, 2022

Celebrations rang through the night last week as the third annual OWI Awards 2022 brought industry giants together to highlight the very best in offshore well intervention.

This year the ceremony was hosted in Aberdeen on 25 November, 2022, and showcased a host of innovative technologies and solutions over the span of eight categories. The judging panel was made up of top operators from around the world ready to find the best of the best in well intervention.

Vaarst kicked off the night by taking home the Digital Transformation Leader trophy for its excellent work on the SubSLAM X2, a trailblazing digital solution which collects real-time intelligent data in order to deliver underwater live 3D point clouds with sub-millimetre precision.

Next up was Expro which was the big winner of the night, claiming victory in two award categories; Champion Integrated Well Service Company and Most Innovative Solution. The company’s integrated subsea intervention package and Octopoda system were recognised by the judging panel for their ingenuity and impact on the outer industry, thus earning the double win.

The award for the Best Example of Collaboration went to AKOFS Offshore in this hotly contested category, for its exemplary work with Equinor, offering the AKOFS Seafarer for integrated services utilising the company’s OneTeam model. The services are provided through four entities ­– AKOFS Offshore, IKM Subsea, Archer and Welltec – highlighting the integral prosperities of collaborative work within the industry.

Tendeka took to the top spot for the Best Project Outcome award, shining a light on the company’s remedial solution, Filtrex Conformable Sand Screen, which showed huge success restoring sand-free production across a three-well campaign in Indonesia. The remarkable performance earned Tendeka high recognition from the judging panel.

As sustainability is an incredibly hot topic within the industry at the minute, the award for Environmental Sustainability Innovation presented a very strong roster, but ultimately there could only be one winner, and Exceed pipped everyone else to the post. The company is on a mission to be the global leader of intergraded well management for energy transition, and was subsequently rewarded for its work on carbon neutral well operation.

SLB was awarded for its Plug and Abandonment Excellence thanks to its industry-first wireline service, Epilogue Isolation, wherein operators are no longer required to remove the inner pipe to evaluate well integrity, revolutionising conventional operations. The service reduces P&A rig days, minimising costs and reduces carbon footprint, all of which make the company a worthwhile winner in the eyes of the judges.

To end the ceremony, the final award was that of Significant Contribution to the Industry; an award which showcases the impressive portfolios accumulated by the finalists over the span of their respective company life cycles. The winner of the prestigious award was Weatherford for its rig-less framework approach to decommissioning pre-abandoned phase 3 wells.

Overall, the ceremony was a cause for celebration for not only the winners, but for all the finalists for all the hard work and dedication each operator has put into making the well intervention industry be the best it can be.

• Region: North Sea
• Topics: Decommissioning
• Date: Nov, 2022

Harbour Energy, ConocoPhillips, Spirit Energy and Repsol Sinopec has formed a well decommissioning collaborative initiative in conjunction with the Net Zero Technology Centre (NTZC).

The initiative will enable new technologies to be trialled and tested in collaborative field trials – both offshore in the UK and onshore in several international locations – enabling faster, lower-cost trials and wider industry adoption. The initiative will have a total of up to UK£1.5mn annual funding to test innovative well decommissioning technologies.

The multi-operator led initiative will aim to fund up to five technologies per year and support a minimum of three field trials for each. By year four, the goal is to have a minimum of six technologies successfully qualified and adopted.

Rebecca Allinson, Head of Emissions Reduction, Net Zero Technology Centre, said, “This collaborative approach is a real game changer for well decommissioning technology development realised through the proactive attitude and willingness of our existing members to collaborate and share information.

“It is a unique multi-operator approach that will deliver the pace of technology development required to meet the industry commitment to reach a minimum of 35% cost reduction and 50% emissions reduction in well decommissioning by 2035.”

Vice President, Decommissioning and Energy Technology, Repsol Sinopec, Adam Sheikh, commented, “We look forward to working closely with the NZTC, other operators and technology developers to accelerate the pace of well decommissioning technology development and acceptance to the end that we, along with other operators within the UKCS, can realise the savings new technology can offer in a timely manner.”

• Region: North Sea
• Topics: Decommissioning
• Date: Nov, 2022

Offshore Energies UK (OEUK), the leading representative body for the UK’s offshore energy industry, has published its latest Decommissioning Insight report.

More than 2,000 North Sea wells involved in oil and gas extraction are to be decommissioned at a cost of around UK£20bn over the next decade, says a new industry forecast.

The wells have played a crucial role in providing the UK with the energy to keep homes warm, run businesses and power vehicles.

Decommissioning is the process of withdrawing offshore energy infrastructure from use once it’s no longer needed or at the end of its lifecycle.

The report finds UK decommissioning is expanding fast and predicts a surge in activity over the next three to four years. It says the sector will continue growing as other emerging offshore energy technologies, like offshore wind farms, also require the service.

It is estimated around 2,100 North Sea wells will be decommissioned over the next decade – around 200 per year – at an average cost of £7.8mn per well.

In 2021 a 10th of UKCS oil and gas expenditure went into decommissioning. This proportion has risen to 14% in 2022 and is set to rise to 19% by 2031. Over the next 10 years, expenditure on decommissioning is predicted to total £19.7bn, with well decommissioning comprising nearly half of this spend.

Over 75% of total decommissioning spend will be within the central North Sea, (stretching from Yorkshire to the northern tip of Scotland), and the northern North Sea, (covering an area north of Scotland and east of Shetland and Orkney). The surge in work could particularly benefit industrial communities on adjacent coastlines, especially around Teesside, Humber, Aberdeen and Inverness. Decommissioning in the Irish Sea will generate more economic benefits in places like Merseyside.

However, the growth in other renewable energies, such as offshore wind, could cause bottlenecks in demand for decommissioning services, the report says.

It means the offshore wind, carbon capture and storage, and oil and gas sectors will need to work together and be transparent about planned projects to make sure the opportunity is properly managed.

OEUK Decommissioning Manager, Ricky Thomson, said, “The UK’s decommissioning sector is snowballing and will continue growing for years to come.

“But this poses a challenge as well as an opportunity. The growth of renewables and demand for decommissioning services and expertise will create increasing pressure for resources.

“This is a great problem to have and it’s vital this opportunity is properly managed across the sector so that UK firms can capture the lion’s share of this £20bn opportunity.

“With the right support from government and action from the industry, the UK could make major gains from decommissioning, as well as retain thousands of jobs for this growing sector.”

• Region: North Sea
• Topics: Decommissioning
• Date: Nov, 2022

ASCO, a provider of fully-integrated logistics and materials management services in the oil and gas, decommissioning and new energy sectors, has secured four new contracts for NORM decontamination and disposal services with major operators, worth more than UK£10mn.

NORM Solutions, part of ASCO's environmental service division, has won the multi-year contracts with leading operators to provide safe management and decontamination of naturally occurring radioactive material (NORM) on North Sea installations as they are decommissioned.

NORM Solutions will handle the receipt and decontamination of all types of offshore materials and equipment, safely cleaning the items to be returned offshore or recycled. They will also handle NORM-contaminated sludges and liquids, repackaging these for safe onward transport and disposal.

The contracts will be further supported by deploying ASCO's radiation protection supervisors, who manage the offshore processes required to identify and safely store and offload any contaminated material.

Chris Lloyd, Head of Environmental and Decommissioning at ASCO, said, "Since ASCO acquired full ownership of NORM Solutions in 2019, the business has gone from strength to strength. The quality of our facilities and the professionalism of our team at NORM Solutions has played a major part in these contract successes and we greatly appreciate our customers faith in the services we deliver.”

Lloyd continued that with the UK acting as a leader in the decommissioning market worldwide, he anticipates continued growth at NORM Solutions to service increasing demand.