European Commission-endorsed body, European Technology & Innovation Platform on Geothermal (ETIP-Geothermal), has launched the new vision for geothermal 2030/50, 'Geothermal Horizons: from Cities to Regions'.
Designed in lines with the EU climate-neutral milestone by 2050, this vision aims to address the climate transition and secure Europe’s energy supply in an affordable way. Its research agenda targets the development of novel geothermal applications tailored to meet the diverse energy needs of European citizens and industries. A crucial step is the integration of these applications into the European energy security scheme, particularly in regions vulnerable to external energy dependencies.
“This ETIP Geothermal Vision looks towards the future of geothermal energy development to achieve the European Union’s climate-neutral milestone by 2050, and it highlights the great benefits of geothermal to decarbonise our economy. It is a unique solution to allow a sustainable energy transition with a paradigm shift for a circular economy. Geothermal is a key enabler for energy system integration, bringing renewable resources to the power, and heating and cooling industries in addition to energy storage and critical raw materials supply,” said Luca Xodo, ETIP Geothermal Chair.
The Greater Kittiwake Area joint venture has appointed EnQuest to continue as GKA operator for the full decommissioning scope, with Shell transferring its decommissioning management role to EnQuest.
Shell had retained operator responsibility for decommissioning the Kittiwake platform and the Mallard field, a subsea tie-back to the Kittiwake platform, when it divested the GKA fields.
EnQuest is delivering on its strategic objective to be the preferred decommissioning operator in the North Sea. The company has demonstrated exceptional decommissioning operator performance through execution of complex decommissioning projects, including the removal of the EnQuest Producer and Northern Producer facilities and the ongoing and extensive well plug and abandonment (P&A) scopes at the Thistle and Heather fields at 40% below benchmark costs. It is on track to complete the P&A of 77 wells, which represents 60% of the EnQuest operated suspended and shut-in wells, within 5 years of cessation of production.
John Allan, EnQuest Decommissioning Director, said, “This is a great vote of confidence in EnQuest by our GKA partners Shell and Dana. It reflects our strong track record of safe, efficient and successful execution of complex decommissioning scopes which is an important part of our company growth strategy.“
Offshore engineering solutions provider Aquaterra Energy has launched well re-entry and re-abandonment services along with its new patent-pending recoverable abandonment frame (RAF)
The combined solution will address challenges in locating, re-entering and re-abandoning legacy wells that penetrate, or pass through, offshore oil and gas reservoirs or saline aquifers that have been earmarked to be repurposed for carbon dioxide (CO2) or hydrogen storage.
The significant economic and technical challenges of re-abandoning problematic legacy wells that pose a leak risk beneath the seabed could derail many carbon capture and storage (CCS) and hydrogen storage projects, that intend to use previously penetrated oil and gas or saline aquifer formations. Technical challenges such as traditional relief well drilling could be infeasible in shallow intersects or where azimuth and depth are unknown.
Excavation methods require enormous amounts of material to be removed and may also fail to isolate re-abandonment loading from the compromised legacy well, meaning both methods may fall short in addressing technical, environmental, safety, and regulatory issues effectively.
Aquaterra Energy’s solution overcomes these challenges by employing advanced seabed and subsurface surveying technologies, well imaging, marking, and tagging to precisely locate wells. This allows the RAF to adjust to an exact well position and install conduits below the seabed to re-engage the legacy well and then back to the surface to allow for successful re-abandonment via a vertical well re-entry tieback method. Crucially the RAF also protects the legacy well components from environmental, lateral and axial loading generated by wave action on the tieback conduits and the re-abandonment operation itself.
George Morrison, CEO at Aquaterra Energy, said, “The introduction of the RAF and our re-entry services illustrate our strategy of pivoting decades of offshore expertise to address the wider challenges of the energy transition. Our team is committed to innovating and taking on the tough issues, ensuring that carbon and hydrogen storage can be effectively delivered as part of our broader commitment to driving the energy transition forward.”
The technology is intended for repeated use across multiple wells or locations with flexibility built in for differing seabed conditions. Its modular design allows for shipping worldwide or road transport for quayside assembly. This could enable the effective abandonment or re-abandonment of wells that may not have been previously possible, while also significantly lowering costs, saving operators £18-20 million per abandoned well - an estimated 80% reduction in comparison to other methods currently deployed. The approach could also lead to major reductions in project timelines, estimated to be up to 50% quicker per well.
"The RAF and our associated suite of services for legacy well re-entry represents a significant leap forward in abandonment technology," said Ben Cannell, Innovation Director at Aquaterra Energy. "Well re-abandonment for CCS is a new challenge, and our solution has been developed to meet it head-on. By reducing project risk, costs and operational time, we're not only making well abandonment more efficient, but also enabling the viability of carbon or hydrogen storage, as these projects would generally be far more costly or even impossible to deliver."
Aquaterra Energy is currently in discussions with major oil and gas operators and specialist CCS operators in several global regions, including the North Sea and APAC, to deploy their legacy well re-entry services and RAF technology.
The UKCS 2024 Wells Insights Report from the North Sea Transition Authority (NSTA) stated there is a huge opportunity to access resources in a timelier, clean and cost-effective way to support the UK’s supply chain.
The report revealed that well intervention is currently able to provide hydrocarbon production at a cost of less than £12/boe, making it a very attractive option in line with today’s oil and gas prices. The report outlines the importance of operators striving to increase their well intervention activity in order to extend the production lifespan of their wells, and to provide a stable flow of work for the UK’s supply chain.
Carlo Procaccini, NSTA Chief Technical Officer, said, “Well intervention work can and does produce impressive results, boosting efficiency and providing cleaner and cost-effective production. We expect that bringing together operators with the supply chain will highlight significant opportunities for everyone.”
In 2023, interventions increased in the Northern North Sea to 102 wells, compared to the 82 in 2022. There has also been an increase West of Shetland where nine wells benefitted from intervention work last year, up from two in 2022. However, Central North Sea, Southern North Sea and the east Irish Sea have experienced a decrease in activity.
To encourage more interventions, the NTSA has already held one-to-one sessions with leading North Sea operators and completed a detailed study of 795 shut-in wells to understand the percentage figure that could be brought back online.
Separately, the report outlined that a total active well stock on the UKCS currently sits at 2,546, down from 2,560 in 2022. The past year has also seen an increase in the number of shut-in wells to an all-time high of 31% of the active well stock (795 wells). While a proportion of these wells could be brought back online, without the necessary investment in infrastructure or downhole interventions, it is more likely these wells will be permanently decommissioned.
In terms of spending, the report highlighted the total exploration and appraisal well spend was UK£571mn, compared to UK£275mn in 2022.
Archer Well Services has secured a global exclusive license agreement with Raptor Data Limited, enhancing its well integrity and plugging & abandonment (P&A) offerings with innovative technology.
This partnership integrates Raptor's advanced wireless acoustic telemetry technologies into Archer Well Services’ well integrity portfolio, significantly improving monitoring capabilities.
Raptor is a UK-headquartered company dedicated to research, design, engineering and manufacture of downhole tools for plug and abandonment. The company's proprietary wireless acoustic telemetry technology is a leader in the market for plug and barrier validation and verification (V&V) and associated workflows for confirming wellbore barrier quality and integrity.
Nicholas Pantin, Executive Vice President of Archer Well Services, said, “Raptor has developed a state-of-the-art downhole acoustic monitoring tool that, with its wireless data broadcasting capabilities, will expand Archer Well Services solutions in the temporary and permanent plug and barriers V&V market, including data transmission of downhole pressure and temperature broadcasted via a wireless acoustic telemetry from below the barrier. This demonstrates Archer’s major commitment to continue improving and managing the placement of reliable well barriers.”
Paul McClure, CEO of Raptor Data Limited UK, said, “I am delighted to announce our partnership with Archer Well Services. Together we complete the strongest offering for well decommissioning in the global market and this positions both companies as leaders of well P&A with a unique set of solutions and workflows for plug and barrier V&V. A combined Archer Well Services – Raptor Data in this space provides unparalleled resources and a technically differentiated global platform to build a scalable high impact business at the cutting edge of technology.”
Kent is collaborating with the UK’s Energy Institute to create guidelines for decarbonisation economics in Greenhouse Gas (GHG) emission reduction projects in the upstream oil and gas industries.
This report will provide clear, actionable guidance to help the sector achieve its environmental goals, demystifying the economics of decarbonisation, including the societal cost of carbon. While it will focus on the UK North Sea upstream sector, it will take a global view so that it can serve as a basis for future research across the world. It will involve the collaboration of Kent’s Environmental team, Asset Decarbonisation team, and Energy Environment Economic (E3) Modelling and Communications team.
"We have seen the challenges of presenting decarbonisation projects against standard project economics with the only justification being the reduced OPEX related to Emission Trading Scheme credits and potential increased revenue from an increase in sales gas quantities from reducing fuel and flare gas," said Graham Filsell, Kent’s Decarbonisation lead. "There is a strong case for the societal cost of carbon and potentially an individual asset marginal abatement cost to form part of the project economics for decarbonisation projects."
James Lawson, chair of USEG (Upstream Environmental Group) added, "Decarbonisation and GHG reduction projects are inherently holistic, involving a wide spectrum of energy professionals, many of whom have not previously engaged in economic assessments and project prioritisation. Furthermore, these projects compete for capital and resources with other industry sectors. Therefore, a clear, concise, and targeted document that all energy professionals can refer to will be invaluable for ensuring that capital and resources are allocated appropriately and in line with net zero commitments."
• Demystifying Decarbonisation Economics: Provide clarity for energy professionals with limited exposure to project economics, such as environmental or sustainability managers.
• Understanding Carbon Costs: Offer insights into how carbon costs are calculated and influenced by market forces, including societal costs.
• Alternative Metrics: Recommend non-standard metrics beyond NPV to ensure that decarbonisation goals are met, delivered as a technical note to the industry.
• Justification of Metrics: Articulate and justify the choice of both standard and non-standard metrics used in the guidance.
• Upstream O&G Value Chain: Focus on the upstream sector of the O&G value chain affected by decarbonisation and assess the potential to broaden the scope to the full value chain.
Petrofac will be supporting the Netherlands’ ambitions for CO2 capture and storage as TotalEnergies EP Nederland BV has chosen its services for a multi-million-dollar front-end-engineering design (FEED) for a CO2 injection platform.
The project involves the decommissioning of topsides and installation of a new repurposed platform connecting to the Aramis CO2 distribution network.
Petrofac is already working on a FEED project covering the design of the 32” CO2 trunkline, including onshore, landfall and offshore sections, together with the offshore CO distribution hub platform for the Aramis system, that it took up earlier this year. This additional scope will enhance the company's carbon transport and storage (CCS) sector internationally, influencing its reputation in managing the challenges and opportunities in delivering CO2 capture, transport, and storage at scale.
John Pearson, Chief Operating Officer, Energy Transition Projects, Petrofac, said, “This award demonstrates confidence in our abilities to provide vital engineering and project delivery expertise to projects that span the CCS value chain. This project, associated with the overall Aramis development, is another key component to the Netherlands’ ambitions to capture millions of tonnes of CO2 from industrial emitters in the region. We are immensely proud to be making an important contribution to these ambitions.”
Allseas has reported that Brent Charlie topsides have been successfully delivered to Able UK’s Seaton Port in Hartlepool, UK.
Weighing more than 31,000 t, Brent Charlie is the largest single offshore topsides to be lifted, transported and delivered to shore, according to Allseas. It was initially removed in a single lift by the Pioneering Spirit, Allseas’ heavy lift vessel that is capable of lifting entire topsides of up to 48,000 t and 20,000 t jackets.
After being carried on the vessel to near-location, the topsides was transferred to the custom barge, Iron Lady, for the short tow to the Tees Estuary and onwards to the Seaton Port disposal facility.
Barge and topsides were grounded onto the grounding bed in the wet dock for the load-in. All safety checks complete, the former production platform was skidded onto Quay 6, designed specifically to distribute the weight of the heaviest topsides facilities.
Now delivered, the massive topsides will be decommissioned with as much recycled or re-used as possible. Able UK has achieved over 97% recycling/re-use rates on previously decommissioned Brent topsides Delta (24,000 tonnes), Bravo (25,000 tonnes), and Alpha (17,000 tonnes), and aims to match or exceed this figure for Charlie using its well-established supply chain.
Geothermal services provider DMT GmbH & Co. KG will be exploring geothermal potential in Münster for Stadtwerke Münster GmbH who commissioned the project as part of the 2030 decarbonisation strategy
The project will involve a large-scale 3D seismic measurement campaign before winter 2024/25, surveying the deep underground between 1,400 and 7,000 meters, covering the entire city.
"25% of the heat demand in Germany could already be covered in the long term, sustainably and CO2-neutrally using deep geothermal energy. The first steps to accelerate the heat transition with the help of deep geothermal energy have been taken. Now it is important to consistently use and roll out instruments such as exploration loans or insurance, national and international funding and accelerated approval procedures. This means that projects like the one in Münster can soon be implemented throughout Germany," said Maik Tiedemann, Chairman of the Management Board / CEO of DMT, and CEO of the TÜV NORD GROUP Business Unit Energy & Resources.
The campaign will see five vibrator fleets working in parallel, consisting of up to 18 vibro trucks and a measuring crew of around 80. Data collected from the campaign will influence further planning and implementation of the heat transition using deep geothermal energy in Münster and the associated decarbonisation.
"The upcoming measurements in the deep underground around Münster will provide valuable information to specify the agenda for the use of deep geothermal energy in the Münsterland and to define a roadmap for this project. With our recent acquisition of high-quality and state-of-the-art measuring instruments, we are also well prepared for the expected increase in orders," said Thorsten Müller, Head of Business Entity Exploration Seismic at DMT, who leads operational teams.
Electrocentrale București (ELCEN), one of Romania’s leading producers of thermal and electric energy, has signed a MoU with Sage Geosystems for the carrying out of a feasibility study for the implementation of geothermal technologies in the Bucharest district heating system.
The benefits of this collaboration are aimed at ensuring sustainability, innovation and efficient economic solutions for the future of centralised heating in Bucharest in an approach that is consistent with the national and European energy transition objectives.
Through the MoU, ELCEN will facilitate access to the relevant data and necessary infrastructure in order to carry out the study, and will contribute its technical expertise and specific operational knowledge to the centralised heating system within Bucharest. Sage Geosystems will perform the technical and geological analysis and feasibility study on the geothermal utilisation solution.
The aim of the partnership is to explore how geothermal energy can be implemented within the city the replace a fossil fuel-based thermal plant with a clean alternative. The first project is expected to generate up to 70MW of thermal power for a district in Bucharest, and upon its a success, will be expanded to other Romanian projects and cities.
General Director of ELCEN, Claudiu Crețu, stated, “We signed this Memorandum of Understanding to see how we can use the geothermal potential in the coming years for the heating of Bucharest as efficiently and sustainably as possible in a hybrid approach."
Cindy Taff, CEO and Co-Founder of Sage Geosystems, commented, “Sage is thrilled to be supporting Romania’s transition to clean energy and to introduce geothermal energy applications to its capital city.”
Perenco UK has completed a campaign of velocity string installations on five wells at the West Sole Charlie platform in the Southern North Sea (SNS), situated 70 km east of Perenco’s Dimlington terminal on the Yorkshire Coast.
The campaign was conducted by the Petrodec HAEVA rig and has delivered sustained production gains of around +5 MMscf/d, in line with expectations.
In a technical and commercial feat, the company completed ahead of schedule. Each of the wells are seeing improved production rates, running with 100% uptime, withouth the need for cycling. Two of these wells were brought online from scratch as they remained shut-in and were not producing.
The net effect is a new production rate for the West Sole field sustained above the 30 MMscf/d level. Recompletion using velocity strings is a proven technology in fields that are no longer producing at their original high gas rates.
In the case of West Sole, the original completion with 5½” tubings were no longer optimal, given the now partially depleted reservoir. Inserting velocity strings of narrower diameter helps to increase the fluid velocities, thereby sustaining production at lower pressures and allowing extension of field life. Perenco had previously deployed this technique to good effect in 2020 at the Hyde field and decided to continue with similar deployment at West Sole Charlie. Other SNS fields, such as Apollo, are also being evaluated for the same.
Perenco UK SNS Managing Director, Jo White, said, “Demand for gas in the UK is set to remain high, so enhancing recovery from domestic gas fields is vital for both energy security and for improving overall emissions intensity. Local natural gas resources have a significantly lower carbon footprint than imported liquified natural gas (LNG), which today accounts for a high proportion of the balance of supply. West Sole was the first offshore natural gas field to be developed in the UK. Since 1967, it has delivered cumulative production of more than 2.2 trillion cubic feet of gas. It remains a significant production hub in the SNS offshore gas network, with potential for future development and tie-in of nearby gas discoveries. Through renewal and application of new technology a sustainable and productive future remains possible for decades to come for the West Sole field.”
The North Sea Transition Authority (NSTA) has warned North Sea operators that they must act now on well decommissioning or risk losing the support of the associated supply chain which will begin to look elsewhere in search of work.
Repeated delays to well plugging and abandonment work, competition for rigs from overseas and cost pressures are pushing up the estimated bill for decommissioning on the UK Continental Shelf – information made clear in the latest Decommissioning Cost and Performance Update from the organisation. According to this report, operators expect to spend about UK£24bn on decommissioning between 2023 and 2032, up UK£3bn on the forecast for the same period in last year’s report.
The NSTA has drawn attention to the importance of sharing knowledge, learning lessons and producing robust plans which helped lower the cost of decommissioning by an estimated UK£15bn between 2017 and 2022. However, it stated that further improvements have been difficult to achieve as much of the low-hanging fruit has been picked.
More than half of the overall estimate of UK£40bn (in constant 2021 prices) is to be spent during this 10-year period, which shows near-term actions will set the direction for the sector. Embedding good practice now and striking a balance between supply chain capacity and demand for its services is crucial, the NSTA reports.
Pockets of operators continue to collaborate, perform admirably and deliver savings, but the majority need to improve by doubling down on their planning. Operators spent around UK£2bn on decommissioning last year, which was in line with forecasts, but they completed much less work than originally planned. In regard to P&A, the NSTA stated that operators can keep their costs under control and meet their regulatory obligations by engaging early with the UK’s world-leading supply chain, providing details of their inactive wells and, most importantly, placing contracts to get the work done.
Hundreds of wells will need to be decommissioned every year as more oil and gas fields shut down, the NSTA explained. However, operators only achieved 70% of planned well decommissioning activities last year. Some operators, it continued, are deferring in hope that prices will go down in the coming years. However, failing to award contracts reduces the supply chain’s revenues and ability to invest in capacity and resources. Rig contractors are actively seeking opportunities in other regions where operators offer longer, more secure contracts. If this trend continues, prices will increase, as reflected in market forecasts.
In addition to exploring the use of sanctions, the NSTA is spearheading a project to identify which UKCS wells will be ready for decommissioning between 2026 to 2030 and assess the supply chain capacity required to undertake the work in a timely and cost-effective manner.
“With spending forecast to peak at UK£2.5bn per year in the current decade, decommissioning can ensure that the UK’s world-leading supply chain is equipped to help operators clean up their oil and gas infrastructure over the next 50 years and support the carbon storage sector, which will rely on many of the same resources,” said Pauline Innes, the NSTA’s Supply Chain and Decommissioning Director.
“I am concerned that this huge opportunity to safeguard highly-skilled jobs and support the transition will be wasted if operators fail to tackle their well decommissioning backlogs. The supply chain wants to do this work, but it is not physically tied to the UK. Its skills and resources are in demand in other regions, and we are starting to see companies marketing their rigs elsewhere. Operators need to use the supply chain, now, or risk losing it.”
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