
Cooper Energy Limited, an exploration and production company, has announced that the Helix Q7000 vessel has commenced work on the first well of the Basker Manta Gummy (BMG) decommissioning programme.
Although the company admitted that progress has been slower than anticipated, it is now making headway on the project with the Helix Q7000 – a purpose-built DP3 semisubmersible vessel from Helix Energy Solutions – now commencing work on the Basker-3 well after initially arriving late to the BMG field. The late arrival of the vessel resulted in Cooper Energy incurring more than three months of holding costs for the remaining contractor spread on the BMG programme and, in addition, more time was required during start-up activities due to factors such as loading of equipment and integration of the Integrated Riser System (IRS).
While Cooper Energy does not anticipate the start-up delays to impact the remainder of the project, the slow progress means re-forecasting of the programme for the remaining six BMG wells is required. As a result of this, the company has revised its mid-case cost estimate for the BMG decommissioning from AUS$193-198mn to approximately AUS$240-280mn. In order to keep this as low as possible, the company has indicated it will be applying learnings from the Basker-3 decommissioning work to the remaining wells. In addition, where possible, Cooper Energy and its contractors will aim to simplify the scope of decommissioning.
While the focus remains on executing the decommissioning programme safely and within the minimum time possible, the company has indicated there are certain risks retaining, including variables outside of the company’s control that could increase the total cost of the decommissioning programme.
Previously, the Helix Q7000 was at work offshore in New Zealand, conducting a decommissioning campaign on the Tui oil field. Click here to learn more.

Aquaterra Energy, a leader in global offshore energy engineering solutions, has won a three-year contract with a leading UK exploration and production company to provide analysis services across the company’s offshore operations.
As per the contract, Aquaterra Energy will provide a range of offshore analysis services to deliver vital insights for the operator, enabling it to optimise its operational performance. This will include riser and conductor analysis for jack-ups and semi-submersibles alongside integrity management, decommissioning and late-life analysis.
“We’re delighted to strengthen our partnership with this customer by signing this contract,” remarked James Larnder, Managing Director of Aquaterra Energy. “We have dedicated significant time and resources to winning these long-term analysis contracts, and the success we’ve seen in this area is a testament to the first-class service delivered by our expert in-house team. To support this growth, we have doubled our analysis team over the last few years, with a focus on recruiting graduates through our award-winning graduate programme.”
Aquaterra Energy will support the operator with recommendations to manage risks and optimise offshore designs for its global portfolio across the full offshore project lifecycle, from extending or decommissioning late-life wells, to early-stage planning. In doing so, it aims to enhance performance, lower costs and support the reduction of carbon emissions from the company’s operations.
Martin Harrop, Analysis Manager at Aquaterra Energy, added, “We’re an agile, solutions-driven partner, and through these long-term agreements can provide customers with assurances and recommendations from the earliest stages of their projects – where we can provide the most value to project delivery and identifying efficiency gains. We work closely with our in-house project engineers to ensure the solutions we suggest to clients are not just what’s best from an analytical perspective, but also an engineering one, and the growth we’ve seen in this area speaks to the quality of our service.”

In a recent update on the SPS-88 well from the Bauna Project site in Brazil, Karoon Energy said that it will install a lightweight intervention vessel (LWIV) to start an intervention process so that the impacted well can be brought back to production.
Production from the SPS-88 well was first affected in November 2023 due to the formation of hydrates owing to an equipment failure in the gaslift dehydration unit of the floating, production, storage and offloading (FPSO) platform. Of the 12 subsea wells from the area that are joined to the Altera&Ocyan-operated FPSO via flowlines, two Patola wells were bought online last year. While the company closely worked with the FPSO operator, and had the faulty equipment successfully replaced and topsides issues resolved to remove the hydrates by circulating fluids, a mechanical blockage in the gas lift valve still obstructs the well's production capacity.
The obstruction has led the company to decide upon undertaking a 20-day intervention process by LWIV that will cost it approximately US$5-10mn. Subjected to engaging a LWIV and ancillary services and equipment, the company noted on its latest statement that this work will be initiated on the fourth quarter of 2024.
As highlighted on its statement, the intervention work will reflect on Karoon's production costs as it will swing between the range of US$10.5-15.0 per boe for the year from the previous US$9.0-14.0 per boe. While the Bauna FPSO comes with a storage capacity of 631,000 boe, the intervention plans has also led it to lower its last year production goals to stand around 9.0mn boe.
Coretrax is set for further growth as the company has secured five multi-year contract wins for 2024 and plans to expand its footprint in the Asia Pacific region by a further 30%.
The latest deals encompass key milestones including the business’ first project win in Latin America and its first expandable casing patch deployment in the UAE.
Following a string of successful geothermal and carbon capture and storage (CCS) projects, Coretrax has secured its largest geothermal contract to date – a multi-year project in Denmark where it will deliver its Origin wellbore clean up technology across 17 geothermal wells.
John Fraser, CEO of Coretrax, stated, “We have experienced a period of sustained growth and are excited to be entering 2024 with a strong pipeline of work and plans for further expansion in the coming months. Our technology spans the entire well lifecycle which means we can support operators from drilling right through to the plugging and abandonment phase.”
The company is also expected to increase its 320-strong workforce by an additional 100 personnel across its bases in Europe, the Middle East, Asia Pacific and the Americas.
“The coming 12 months will see us increase our headcount and footprint globally,” Fraser continued, “with Asia Pacific a particular focus for the business as we respond to increasing demand for our technology across countries including Australia, Brunei and Malaysia. We are also eager to extend our operations in the geothermal and CCS sectors with our circulation tools gaining a strong track record in these emerging markets.”
The contract wins come off the back of the company expanding its well intervention offering by acquiring a suite of new technology from Wireline Drilling Technologies.
Independent wells expert, Elemental Energies, has announced the senior appointment of Willem Boon von Ochssee as Head of Wells.
The key appointment comes as the company charts a course for continued expansion in the coming year.
In his global role, Boon von Ochssee will be responsible for managing the business’ well engineering and wider technical strategy, providing expertise and oversight to projects across oil and gas, decommissioning and low carbon. With over thirty years’ industry experience, he joins Elemental Energies from Spirit Energy, where he worked as the operator’s Wells Technical Authority. He is a specialist in well engineering, project management, drilling management systems and well integrity assurance.
Mike Adams, CEO of Elemental Energies said, “Willem is recognised across the industry as a leading technical authority and is a highly respected member of the wells community. We are passionate about the role wells play in the future of the energy sector, and building a uniquely capable technical organisation is critical to that. Willem brings perspective from both the operator and supply chain viewpoint and will help to foster a strong technical culture across the business.”
Willem is a Co-Chair of the Offshore Energies UK (OEUK) licence to operate well group and is an active member on a number of cross industry committees, including the Society of Petroleum Engineers (SPE) and North Sea Transition Authority. He also plays a key role in the Net Zero Transition Centre’s Alternative Barrier Collaboration forum.
Adams continued, “Willem brings a unique commitment to supporting the wider engineering community through close links with OEUK and SPE. This dedication to supporting professional development, innovation in technology, and cross industry collaboration makes him a perfect cultural fit for us.”
Commenting on his new role, Boon von Ochssee said, “The opportunity to support, develop and manage the outstanding team here is hugely appealing. Fostering collaboration across the whole energy industry is extremely important to me and I will bring that ethos into this new role – working closely with customers to deliver a first class well management service whether for oil and gas, decommissioning or low carbon projects.”
Thermoplastic composite pipe (TCP) provider Strohm has supplied TotalEnergies with a TCP jumper, which has been commissioned for a 1,600 m deepwater project in West Africa.
This installation has followed a rigorous testing programme, during which TotalEnergies qualified the Netherlands-based company's TCP jumper for permanent subsea applications. All pre-deployment inspections and tests were successfully passed, certifying it for its full life cycle on schedule.
The installation of Strohm’s 5.2” ID, 340 bar design pressure TCP Jumper in the Egina field was supported by a local Nigerian subsea services provider. The pipe’s lightweight properties allowed it to be transported by a small, multi-purpose vessel and installed by local contractors, greatly reducing carbon emissions and costs. Strohm personnel were mobilised offshore to assist in the installation process.
Martin van Onna, Strohm CEO, said, “We are immensely proud to see our first TCP Jumper for our highly valued client TotalEnergies installed and operational in West Africa. This success reaffirms TCP as an ideal deepwater solution and strengthens our leading position in the market.”
Strohm’s TCP provides a robust, corrosion free and field-proven solution for operators. TCP jumpers can be manufactured and shipped in long continuous lengths, stored onsite for long periods of time, cut to length when required and terminated within hours, with no change to its properties or lifespan. TCP for subsea jumpers as well as flowlines and risers have proven to reduce the CO2 footprint of pipeline infrastructures by more than 50%.

Pertamina, an Indonesia state-owned oil and gas corporation, has revealed that it is exploring Rig-to-CCS (carbon capture storage) developments with Korea National Oil Company (KNOC).
The collaboration aims to repurpose offshore oil and gas platforms into CCS facilities and is being pursued through a joint study agreement. This was signed by Nicke Widyawati, President Director of Pertamina, and Dong Sub Kim, President & CEO of KNOC, in a bid to reduce emission and support net zero commitments.
“I highly appreciate this collaboration. Apart from enriching CCS studies, this collaboration also helps address Indonesia's challenges regarding abandonment and site restoration (ASR) of offshore platforms,” remarked Widyawati.
“The cost of conventional ASR or decommissioning is extremely high, necessitating an alternative ASR solution, especially reutilisation, in order to ensure the gradual and efficient implementation of ASR for these offshore platforms.”
Oki Muraza, the Senior Vice President of Research and Technology Innovation of Pertamina, added, “This collaboration could be extended to the development of Rig-to-Wind Farm, Rig-to-Fish-Farm, and Rig-to-LNG Terminal to transport natural gas to locations where energy facilities are yet to be established.”
Many companies are seeking to address the decommissioning challenge which is increasing in urgency. Click here to discover Offshore Network's unique report on the global decommissioning outlook.

Well integrity and production optimisation specialist Coretrax has strengthened its portfolio after acquiring a complementary suite of well intervention technology from Wireline Drilling Technologies.
The significant investment has expanded Coretrax’s offering. Since completing the acquisition, the firm has signed a global route to market agreement with a supermajor to support its well intervention requirements internationally and secured additional work in the Middle East with an existing client.
The company has already integrated the new assets and software, which include wireline pump units, drilling units and tractor modules into its existing technology portfolio. The additional equipment boosts Coretrax’s current well integrity offering, enabling the business to access and address damaged wellbores, and support highly deviated wells more efficiently.
John Fraser, CEO at Coretrax, said, “This investment demonstrates our continued drive to enhance and improve our services, positioning Coretrax as a full turnkey solution for
all wellbore entry and remediation operations. The additional technologies have integrated seamlessly into our portfolio of tools and are supporting several new contracts including a global supermajor and an ongoing long-term project in the Middle East.
“As the industry remains focused on extracting maximum recovery from existing wells, demand for wireline applications has increased as operators realise the cost and sustainability
benefits they bring across well intervention, frac plug drilling, well conveyancing and lateral drilling. Our recent investment will undoubtedly open up new markets for the business and we are excited about the opportunities this will bring.”
The AGSM AIM Group has invested in a specialised geothermal energy project in Verona, Italy, which will see the construction of geothermal wells capable of providing clean thermal energy to those connected to the district heating network.
The project process, which began in December 2023 with the approval by the Board of Directors of AGSM AIM as part of the industrial and economic plan of the ‘Geothermal Project’, will continue over the coming weeks with the establishment of a company to lead the project.
The project will provide geothermal energy to five cogeneration plants in Verona located in Borgo Trento, Forte Procolo, Golosine, City Center and Banks, as well as the Vicenza district heating plants in the future. Utilising geothermal energy is a key part of the objectives and actions envisaged by AGSM AIM’s industrial and strategic plan which places sustainability among the main pillars of growth for the group.
Federico Testa, President of AGSM AIM, said, “Thanks to this important technology our Group confirms that it faces the challenges of the energy sector with a new vocation of values, always directed towards sustainable development and cost containment for citizens and businesses.”
The project aims to bring economic benefits to district heating customers due to the strong reduction of methane gas that will be compensated by geothermal resources. The thermal source is expected to save more than 40% of the gas consumed by the region, thus reducing CO2 emissions by approximately 30,000 tons.
A UK£1mn investment in developing its largest subsea Chopsaw to date has paid off for Decom Engineering (Decom) following impressive results on its first deployment.
The C1-46 Chopsaw played a pivotal role in a subsea infrastructure decommissioning project on behalf of DeepOcean in the northern region of the North Sea.
This ambitious project involved the removal of pipelines, control umbilicals, and various subsea structures from the seabed in water depths of up to 180 metres, each requiring precise and efficient cutting.
The Decom team was tasked with cutting a wide range of pipe sizes, from 1,042 mm OD concrete-coated carbon steel pipes to 220 mm OD super duplex pipes. These subsea pipelines needed to be segmented into 9.5 metre sections for efficient recovery to the vessel deck.
Powered from topside and ROV using a Hydraulic Power Unit (HPU), reeler, hot stabs and control panel, the C1-46 exceeded all expectations, proving its worth in the harshest of subsea environments. The smaller C1-24 chopsaw was utilised for certain tasks and also operated with a mix of topside and ROV controls.
The C1-46 averaged 15 cuts before requiring a blade change, significantly reducing the need for recovery to the surface and impressively completed 79 cuts on its first deployment, showcasing a remarkable 100% success rate.
Substantial time savings of almost 300% were achieved compared to using traditional diamond wire saws which typically have longer cut times, carry a risk of wires breaking, and require multiple trips to the surface vessel for blade replacement. Using customised insertable and replaceable tips voided the need for blade changes, reducing costs and increasing efficiency by minimising vessel time.
In contrast, the C1-46 completed some cuts in as little as 20 minutes, while the C1-24 saw excelled in cutting super duplex and flexible risers - materials that traditional shears can’t handle.
Furthermore, Decom’s innovative approach to reducing seabed dredging time by modifying the saw’s clamps reduced dredge time from 3.5 hours to just 30 minutes.
Established in the United Kingdom in 2011, Decom is an R&D specialist focusing on the design and fabrication of cutting solutions and innovative decommissioning equipment, with a growing reputation for providing complex deep water project solutions.
Decom Engineering Managing Director, Sean Conway, said, “The C1-46 Chopsaw is a remarkable piece of subsea engineering which was designed, developed, and deployed in under six months, specifically for this North Sea decommissioning campaign.
“This project underlined our commitment to engineering innovation and underlined our credentials for pushing the limits of what’s achievable in subsea decommissioning. To efficiently cut through a submerged 1,042mm reinforced concrete coated pipe is not without its challenges, but the C1-46 was more than up to this difficult task.
“It’s been a valuable learning experience and the performance of the C1-46 Chopsaw sets the benchmark for going on to roll out our technologies which offer multiple benefits to contractors and operators engaged in complex subsea decommissioning projects.”
The C1-46 Chopsaw has been designed to cut tubulars and other materials up to 46” diameter and is able to cut a wide range of materials, including inconel alloys, duplex and concrete.
It can be operated in water depths of up to 2,000 metres, has the ability to cut in any orientation, and is capable of multiple cuts per blade (20-100), resulting in large cost savings and increased efficiency. Blade changes are efficient and safe and the chopsaw can be supplied set up in a number of configurations and settings to suit project requirements.
40 years since the launch of its first subsea test tree system, Expro, a leading energy services provider, has remained at the forefront of subsea landing string technology.
The first 10ksi subsea test tree assembly (SSTTA) was created for an exploration and appraisal well project for Hamilton Brothers in the North Sea in 1983. Several of its SSTTA technologies have been on a first to market basis and have helped to progress the sector’s capabilities over the years. Expro has now undertaken more than 3,000 subsea deployments in exploration and appraisal, completion, and intervention applications, and remains a global leader in large-bore SSTTA solutions.
Other subsea well access major milestones Expro has achieved over the years have included the introduction of the first 7 3/8” 10ksi horizontal tree completion landing string system; the launch of the industry’s first 6 ¾” high debris SSTTA system; the release of the first large bore 6 ¾” 10 ksi subsea electro hydraulic control system; unveiling the first 6 ¾” 10ksi dual bore and mono-bore subsea test tree offshore; revealing the first 15ksi 6 1/8” horizontal tree SSTTA and electro-hydraulic control system; and the development of 7 3/8” 10ksi high debris SSTTA.
The evolution of subsea test tree assemblies has allowed the company to expand into the open water well intervention market through the introduction of both riser-based and riser-less well intervention solutions. Such success and dedication to subsea well access application even earned the company the accolade of Intervention Champion of the Year at the recently-held OWI Global Awards 2023.
At the company is showing no signs of building on its successful history. In a bid to continue this history, it has sought to boost its subsea capabilities by acquiring PRT Offshore, the only company to offer a complete Hook-to-Hanger solution enabling comprehensive well completions, interventions, and decommissioning services from surface to subsea. The acquisition enables Expro to expand its portfolio of cost-effective, technology-enabled services in the North and Latin America region and accelerate the growth of PRT Offshore’s surface equipment offering into the Europe and sub-Saharan Africa and Asia Pacific regions.
“At Expro, we’ve been first to the market with many of our subsea test tree assembly products and, as future technical challenges arise, we believe that with our customer-bespoke solution philosophy, we’ll continue to be at the top of the subsea test tree application,” remarked Graham Cheyne, Expro’s Vice President of Subsea Well Access.
“From starting in 1983 supporting operators in the Norwegian North Sea, we’ve become a global player in all parts of the world, supplying fully integrated technologies and services from surface to seabed – the hook to hangar concept. The subsea test tree market operates in the full well lifecycle – from exploration and appraisal through to abandonment and decommissioning while continually looking to improve our delivery and operational performance, and service quality to our global client base.
"Whilst leading in this market for over 40 years with many first to market technologies we are committed to delivering the new technology requirements of tomorrow in order to meet our customer needs whilst maintaining the high level of service quality and customer care.”

Leading institutional investor in the global energy and infrastructure sectors, EIG, has entered into definitive agreements with Novonor S.A. and the Brazilian Development Bank (BNDES) in order to acquire Ocyan Participações S.A.
Ocyan is a Brazilian-based solutions provider to the offshore oil and gas industry that boasts a 23-year track record of delivering for the sector, including in the operation of subsea and decommissioning projects. It is the only operating in the floating production storage and offloading (FPSO) industry and currently operates four offshore units through a joint venture with Altera Infrastructure.
R. Blair Thomas, EIG’s Chairman and Chief Executive Officer, remarked, “I have known and respected Ocyan for decades. The company’s resilience and the strength of its business have helped it overcome significant economic headwinds while maintaining a healthy balance sheet, positioning Ocyan for long-term growth. Brazil is home to over 25% of the global FPSO fleets, and we believe the future market dynamics for oil and gas infrastructure in Brazil are very favourable, underscoring our dual commitment to supporting growth and development in this important region while creating value for our investors. We are also excited to support Ocyan’s ventures in the renewables space to help drive the energy transition forward.”
EIG is looking to finalise the takeover to the tune of US$390mn, continuing its history of investment into the South American country – it has invested more than US$2bn there since 1998. As the latest example of this, the acquisition of Ocyan reflects the company’s comprehensive Brazilian strategy focusing on infrastructure supporting deepwater crude oil production, responsible decommissioning activities and renewables / low-carbon projects.
Roberto Prisco Paraiso Ramos, Ocyan’s Chief Executive Officer, remarked, “Ocyan has built and operated more than US$4bn of drilling rigs, pipelaying support vessels and FPSOs, alone or in joint ventures, always enjoying the very strong support of its shareholders and Novonor. This acquisition does not impact current contracts and operations with our clients and suppliers. This is another important chapter in our history and one that will undoubtedly create new opportunities for Ocyan.”
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