The United Kingdom has witnessed the successful drilling of the country's first carbon storage appraisal well as part of its ambitious carbon capture and storage objectives.
According to Offshore Energies UK, this new well in the decommissioned Hewett gas field off Bacton on the coast of North Norfolk, will play a significant role in accelerating the path to net zero greenhouse gas emissions as it serves as a major carbon store in the region. The project reflects the UK industry's sustainable approach as it repurposes existing oil and gas infrastructure, delivering carbon capture and storage with the help of efficient supply chains and skilled workforce.
The site operated by the global energy company Eni, is part of the North Sea Transition Authority’s first carbon storage licencing round.
Powering the UK with gas for decades, the Hewett field will now boast a storage capacity of up to 10 million tonnes of CO2 annually as a large-scale carbon storage facility. This equals the yearly greenhouse gas emissions of around a fifth of all UK industry.
The location of Hewett is particularly well placed to support the decarbonisation of industry in Southern England and also industrial greenhouse gas producers in continental Europe.
With an aim to accelerate this process, Offshore Energies UK has initiated a round table with the European Commission, looking to navigate regulatory barriers that currently prevent cross border transport of carbon emissions.
The North Sea Transition Authority which oversees Britain’s carbon capture plans, has already awarded permits for the UK’s first two carbon storage projects. These are the Northern Endurance Partnership off Teesside in December 2024, and Liverpool Bay carbon capture and storage project in April 2025, which is also operated by Eni.
These two projects together could store more than 200 million tonnes of CO2, equivalent to taking 110 million cars off the road for a year. The permits have also unlocked £6bn worth of supply chain contracts and 4,000 construction jobs.
Enrique Cornejo, OEUK Head of Energy Policy, said, “This Hewett appraisal well is a powerful signal of industry’s commitment to invest in the UK’s net zero future. It shows how our existing energy infrastructure and expertise are being repurposed to deliver climate solutions. But for commercial carbon capture and storage to succeed at scale, government must accelerate a clear route to market for projects like Bacton CCS which are outside the government’s planned cluster sequencing process. The Hewett appraisal well is a tangible example of industry stepping up, and now it’s time for policy to keep pace.”
The journey toward large-scale carbon capture and storage (CCS) is gaining momentum, but significant technological and operational challenges continue to slow progress.
According to the CCS Wells Technology Roadmap, a comprehensive report published by the Net Zero Technology Centre (NZTC) in collaboration with DNV and commissioned by the UK’s North Sea Transition Authority (NSTA), key gaps remain in the deployment and optimisation of monitoring technologies essential to ensuring safe, efficient, and long-term CO₂ storage.
The report highlights that while technologies such as Vertical Seismic Profiling (VSP), microseismic monitoring, pulsed neutron logging, and tracer systems are critical to tracking CO₂ movement and storage integrity, each faces its own limitations that must be addressed to unlock the full potential of CCS.
For Vertical Seismic Profiling (VSP), the challenges centre around high operational costs, complex logistics, and limited spatial coverage beyond the wellbore. Although Distributed Acoustic Sensing (DAS) VSP offers enhanced spatial resolution, fibre-optic longevity and signal quality over extended periods, often decades, remain pressing concerns. The report also points out that conducting repeated surveys can be resource-intensive, impacting the long-term sustainability of monitoring programmes.
In microseismic monitoring, the quality of data is often affected by background noise, sensor coupling, and the difficulty of pinpointing small events within deep storage formations. While DAS-based systems can enhance coverage, they still fall short in sensitivity and low-frequency response compared to geophones. Automating the discrimination between injection-induced and natural seismicity, and developing real-time interpretation systems for timely risk response, remain major technological gaps.
When it comes to pulsed neutron logging, the report notes challenges in distinguishing CO₂ in low-porosity or thinly bedded formations. The presence of saline water or complex lithologies can distort results, complicating saturation analysis. Differentiating CO₂ from hydrocarbons, which both exhibit low hydrogen index signals, is also problematic. Achieving accuracy requires robust baseline data, calibration, and the integration of multiple logging methods. As cited by the report, Kim et al. proposed an approach that helps distinguish CO₂ from hydrocarbon gases in depleted gas reservoirs, an important step forward in refining this method.
Meanwhile, tracer technology still faces issues with long-term stability, especially for nanoparticle and biomarker tracers, along with potential cross-contamination and detection challenges in dilute CO₂ plumes. Infrastructure limitations, particularly in offshore or remote sites, compound the issue. The roadmap also highlights the need for improved integration of tracer data with other monitoring results, stronger regulatory frameworks for leakage quantification, and validation of new tracers for environmental safety over extended storage lifespans.
Across all these methods, the NZTC and DNV report underscores a common challenge: scaling field pilots to commercial operations that can run reliably over decades. It calls for more automation, better data integration, and enhanced sensor and tracer durability in CO₂-rich environments.
The information in this article has been extracted from The CCS Wells Technology Roadmap, a report published by the Net Zero Technology Centre (NZTC) and DNV, commissioned by the UK’s North Sea Transition Authority (NSTA). To explore the complete findings and insights, read the full report here.
Ready to be extracted via a single subsea well, Shell's Victory gas field in the UK North Sea will help maintain domestically produced gas for Britain’s homes, businesses and power generation.
Approximately 47 km north-west of the Shetland Islands, the Victory field has started production for Shell UK Limited to reach the Shetland Gas Plant via an existing pipeline network connencted to the subsea well. Utilising the existing infrastructure will reduce operational emissions. The gas will be piped to further travel the Scottish mainland at St Fergus near Peterhead, where it will be fed into the national gas network.
Peak production is estimated at around 150 million standard cubic feet per day of gas (approximately 25,000 barrels of oil equivalent per day) at full capacity, which is equivalent to heat nearly 900,000 homes per year. Most of the field’s recoverable gas is expected to be extracted by the end of the decade.
As older gas fields reach the end of production, Victory can help bridge the gap while also reducing the UK's reliance on imports.
"Gas fields like Victory play a crucial role in the UK’s energy security, and the country will rely on them for decades to come. They provide an essential fuel we need now, and act as a partner to intermittent renewables as we move through the energy transition,” Shell UK Upstream Senior Vice President, Simon Roddy said. “By developing fields like Victory next to existing infrastructure, we are making sure our production in the UK North Sea remains cost competitive and reduces operational emissions.”
Serica Energy plc has announced the signing of an agreement to acquire BP’s entire stake in the P111 and P2544 licences in the UK Central North Sea, pending the waiver of applicable pre-emption rights.
The Proposed Acquisition includes a 32% non-operated interest in the P111 licence, home to the Culzean gas condensate field, and the adjacent P2544 exploration licence.
Culzean, operated by TotalEnergies, is currently the largest single producing gas field in the UK North Sea.
Under the joint operating agreement, the Proposed Acquisition is subject to a 30-day pre-emption period, during which partners TotalEnergies (49.99%) and NEO NEXT (18.01%) may acquire BP’s stake on the same terms. Updates will follow as appropriate.
Chris Cox, Serica's CEO, stated, “Should this transaction complete, it would deliver a step-change for Serica, adding material production and cash flows from the largest producing gas field in the UK. Culzean is a world-class asset, delivering gas from a modern platform with exceptionally high uptime and low emissions.”
The Proposed Acquisition carries an economic date of 1 September 2025, with an upfront cash consideration of US$232mn, subject to customary working capital adjustments and partially offset by interim post-tax cashflows expected by completion at the end of 2025.
Two additional contingent cash payments are included: one linked to successful results from P2544 exploration, and another tied to changes in the UK ring-fence fiscal regime. Funding will come from interim Culzean cashflows and existing financial resources, including the $525 million Reserve Based Lending facility, with the potential for a new acquisition facility to support the Company’s larger asset base.
Culzean is a mid-life gas condensate field discovered in 2008 and onstream since 2019, producing c.25,500 boepd net to BP in H1 2025 at 98% efficiency.
Remaining net 2P reserves are estimated at c.33 mmboe. Production costs are US$10.7/boe, with one of the lowest carbon footprints in the UK North Sea, well below the sector average of 20 kg CO2/boe. Future infill drilling and licensed exploration offer upside potential.
Greece is in the final stages of negotiating a major offshore energy exploration contract with US oil major Chevron and local partner Helleniq Energy, aiming to conclude the deal by the end of 2025. The agreement would mark a milestone in Greece’s efforts to boost domestic energy production and strengthen its position as a regional gas transit hub.
Chevron and Helleniq Energy have jointly bid to explore four deep-sea blocks off the Peloponnese peninsula and the island of Crete. “We are working intensively with the US company and Helleniq Energy to meet the timetables and conclude the contract within 2025,” said Energy Minister Stavros Papastavrou on Action24 television.
The initiative aligns with the European Union’s strategy to reduce dependence on Russian gas and enhance energy security following the invasion of Ukraine. Greece, which currently imports most of its gas for power generation and domestic use, hopes the exploration will unlock new reserves and attract long-term investment in its energy sector.
Once signed, the contract will require approval from Greece’s court of auditors and parliament before Chevron begins seismic surveys in 2026. The exploration phase is expected to last up to five years, with any potential test drilling anticipated between 2030 and 2032.
Hunting PLC has introduced Opti-TEK, a new suite of Optimised Intervention Technologies aimed at helping operators extend well life, minimise downtime, enhance decision-making, and lower both operational costs and environmental impact.
Developed through Hunting’s TEK-HUB innovation platform, Opti-TEK combines the company’s internal expertise with strategic technology partnerships to accelerate the delivery of next-generation tools to the market.
The initial range of products includes:
Allan Gill, Product Line Director for Well Intervention, commented: “Opti-TEK represents Hunting’s commitment to delivering smarter, safer and more cost-effective interventions. By aligning cutting-edge innovation with real-world operational demands, we are enabling our customers to optimise every intervention and maximise the value of their asset.”
The launch of Opti-TEK underscores Hunting’s ongoing drive to innovate within the well intervention sector, equipping operators with advanced tools designed for greater precision, safety, and sustainability in increasingly complex field environments.
The riserless light well intervention (RLWI) market, valued at US$270.52 mn in 2024, is projected to reach US$405.81 mn by 2032, growing at a CAGR of 5.2%, according to Credence Research.
Key players shaping the market include Expro, ExxonMobil, Halliburton, Aramco, NOV, Emdad, Baker Hughes, Oceaneering, Hunting Energy, and Nortech. These companies focus on technological innovation, vessel upgrades, and digital integration to improve efficiency and safety in offshore interventions.
Logging and bottom hole surveys dominate the service segment, accounting for over 25% of demand. These services are vital for evaluating reservoirs, identifying production zones, and providing accurate well diagnostics without costly drilling. Operators increasingly adopt advanced downhole logging tools to gain real-time insights, reduce non-productive time, and optimize subsea operations.
The global increase in aging oil and gas wells serves as a significant driver for RLWI adoption. Many wells, particularly in the North Sea and mature offshore fields, require intervention to sustain production levels and extend well life. RLWI provides a practical solution by enabling remedial activities such as zonal isolation, sand control, and artificial lift installation without extensive downtime. The ability to enhance recovery rates from declining wells ensures continuous demand. This trend aligns with industry goals to maximize asset utilisation and improve return on investment.
Europe: Mature fields drive RLWI adoption
Europe holds approximately 28% of the global RLWI market, with the North Sea serving as a major hub. The region’s mature offshore infrastructure and large number of aging wells create significant demand for intervention solutions aimed at maximizing recovery rates. Operators and governments prioritise safe, cost-efficient methods, making RLWI a preferred choice over traditional rig-based systems. Continuous investment in digital integration and sustainability-driven practices strengthens Europe’s market position, ensuring RLWI remains critical for managing production from mature subsea assets.
To learn more about the RLWI market in other regions, visit Credence Research’s full report here
AF Gruppen, through its AF Offshore Decom subsidiary, has entered into a Joint Venture (JV) with THREE60 Energy after being awarded a contract with bp to provide integrated decommissioning services for the Andrew field in the North Sea.
For the first time in the UK Continental Shelf, this contract with see the JV assume the role of decommissioning partners where the two companies will deliver post-cessation of production operations, well decommissioning, facilities/pipelines/topsides preparation, substructure and topsides disposal and subsea infrastructure removal.
The JV will also work alongside the topsides removal contractor to ensure successful unified delivery of the full decommissioning scope.
The project will be carried out under a long-term framework agreement, with the contract value worth up to NOK4,000mn.
Lars Myhre Hjelmeset, EVP Offshore at AF Gruppen, said, “AF Offshore Decom has for many years been an advocate for integrated decommissioning solutions and we are very proud to make the move from concept to execution together with our client bp and partner THREE60 Energy. This initative responds to the call for new business delivery models aimed at reducing cost and complexity and supporting ‘next generation’ decommissioning.”
The Andrew field is located 225km northeast of Aberdeen and serves as a central hub for four subsea fields and includes 17 platform wells, eight subsea wells, 41km of subsea bundles, 42km of umbilicals, and 2,500 tonnes of subsea equipment.
Expro, a leading energy services provider, has successfully completed the first full deployment of its Remote Clamp Installation System (RCIS), marking a major advancement in offshore safety and operational efficiency
Developed by Expro’s Frank’s Tubular Running Services (TRS), the RCIS provides a unique industry solution for smart well completions, enabling real-time monitoring and control of downhole tools from the surface via control lines. This technology allows operators to optimise production, manage downhole safety devices essential for well integrity, and extend well life, reducing the need for costly interventions. By fully automating clamp installation on tubing, the RCIS eliminates much of the manual work traditionally required, enhancing efficiency and reducing personnel exposure on the rig floor.
The RCIS was first deployed in the UK’s North Sea during Q4 2024 as part of a test trial, delivered in collaboration with BP, which partially sponsored the technology’s development.
Following this success, the RCIS was deployed again in Q2 2025 by another North Sea operator, where Expro ran a complete hands-free Upper Completion at up to 15 joints per hour with zero non-productive time or control line damage, increasing running efficiency by 25%. Control line clamps were installed remotely, cutting installation time by around two minutes, or 50% per clamp.
Jeremy Angelle, vice-president of Well Construction, said: “This is a breakthrough in clamp installation. By automating a previously manual and high-risk process, we’ve not only increased efficiency but also advanced safety in a meaningful way.”
“The RCIS is designed to offer a practical solution for reducing exposure in hazardous zones, improving crew safety, and streamlining completion activities. As the industry continues to seek ways to minimize manual intervention and improve efficiency, the RCIS represents a scalable, forward-looking solution for offshore operations worldwide.
Angelle added: “This is a new era of safer, smarter completions.”
Russian energy major Gazprom has confirmed a lengthy delay to its Sakhalin 3 offshore project, with first gas now unlikely before 2028, three years later than previously anticipated and one year after it is supposed to start supplying China through a new cross-border pipeline.
The revised schedule was disclosed by Sakhalin Governor Valery Limarenko during an industry gathering in Yuzhno-Sakhalinsk, where he noted that production at the complex would not begin until at least 2028.
Sakhalin 3 covers four separate deposits. The smallest, Kirinskoye, holds around 162bn cubic metres of reserves and began output in 2013 using subsea equipment supplied by FMC Technologies, now part of TechnipFMC.
Gazprom had initially intended to apply the same approach at South Kirinskoye, the largest field in the block with an estimated 815bn cubic metres of reserves.
That strategy collapsed in 2015 after the United States introduced sanctions following Russia’s annexation of Crimea. Since then, Gazprom has been forced to turn to domestic suppliers.
In 2019, it awarded a contract to defence manufacturer Almaz-Antey to design and build subsea production systems. While the company delivered two specialised subsea wellheads in 2023, progress on the remaining infrastructure has stalled, with no clear delivery schedule announced.
The continued delays underscore the difficulties Gazprom faces in developing technically complex offshore projects without Western technology, particularly as pressure mounts to secure new export flows to China.
Weatherford International plc has announced that it has been awarded an eight-year contract by SNGN Romgaz S.A., Romania’s largest natural gas producer and main supplier, and the third-largest gas producer in Europe.
The contract involves providing services for real-time monitoring and transmission of dynamic parameters from gas well wellheads, enhancing production optimization through digital and AI-enabled insights.
This represents Romgaz’s first engagement of such services, demonstrating the company’s commitment to digital transformation and production automation. Under the agreement, Weatherford will implement a wellsite monitoring campaign across thousands of existing wells. Using cloud infrastructure, Weatherford technology will gather critical field data, providing Romgaz with essential information for production decisions. This data will guide in-field automated infrastructure supplied by Weatherford to achieve Romgaz’s production optimisation goals.
Girish K Saligram, president and chief executive officer of Weatherford, commented, “We are proud to support Romgaz in their first deployment of real-time monitoring services. With our technology, expertise, and recent investments in Romania, Weatherford is well positioned to help Romgaz optimise production and build fields of the future with solutions that enable smarter and more reliable operations.”
Razvan Popescu, chief executive officer of Romgaz, added, “Partnering with Weatherford marks a significant step forward in Romgaz’s digital transformation journey. For the first time, we are implementing real-time wellsite monitoring technologies that will provide actionable insights and enhance the efficiency of our operations. This initiative aligns with our strategic objectives of innovation and operational excellence. We are confident that this collaboration with Weatherford represents a strategic first step in integrating AI-driven technologies into our operations and laying the foundation for a new era of intelligent transformation.”
Weatherford’s well monitoring solutions deliver continuous, high-fidelity well data, enabling smarter decision-making and proactive intervention strategies. Implementing these systems will allow Romgaz to gain enhanced visibility of well conditions and optimise production throughout the duration of the contract.
Petrofac has secured an extension to its contract with ONEgas West, reinforcing its presence in the Southern North Sea market.
The deal, issued on 15 September 2025, continues Petrofac’s long-running service role across ONEgas West’s portfolio, including support for the Clipper South complex, Leman Alpha assets, Bacton Terminal, and OneGas barge operations.
John Pearson, chief operating officer of Petrofac’s Asset Solutions and Energy Transition Projects, noted that the company has supported these assets since 2020, positioning it as an embedded member of the delivery team with the ability to assist in production enhancement and field life extension.
This extension builds on a similar EPC contract awarded in March 2024, when Petrofac won a two-year brownfield EPC extension with ONEgas West, which is operated by NAM and owned by Shell UK. The renewed scope underscores ONEgas West’s confidence in Petrofac’s teams in Great Yarmouth and Aberdeen, valued for their operational knowledge and delivery.
As the industry faces pressures including energy transition goals and tighter regulation, contracts like this become strategic. Supporting key infrastructure such as terminals, complex offshore installations, and barge operations helps ensure continuity of supply and contributes to operational resilience.
For Petrofac, this deal strengthens its standing in one of its primary markets and demonstrates its capability to deliver both maintenance and enhancement in challenging offshore settings.
“Having supported these assets since 2020, Petrofac is embedded within the delivery team and is uniquely placed to support production enhancement and field life extension,” said Pearson.
“The North Sea remains one of Asset Solutions’ core markets and this award demonstrates confidence held in our team and the value they drive. We look forward to continuing this relationship, delivering safe and reliable operations.”
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