TotalEnergies E&P Danmark has awarded Maersk Drilling a contract for well intervention services in the Danish North Sea.
Maersk will employ the high-efficiency jack-up rig Maersk Reacher to carry out the 21-month contract which is expected to commence in July 2022. The contract includes options to extend the duration by up to 27 additional months.
Maersk Reacher is a 350 ft, Gusto-engineered MSC CJ50 high-efficiency jack-up rig which was delivered in 2009. It is currently operating offshore Norway where it is scheduled to be replaced in a rig swap with Maersk Integrator end-February/early March 2022. Maersk Reacher will undergo a special periodic survey prior to commencing the contract with TotalEnergies.
Claus Bachmann, Head of North Sea Division in Maersk Drilling, commented, “We’re happy to build further on our long-standing collaboration with TotalEnergies by adding this long-term contract which means that two of our rigs will be working for TotalEnergies in Danish waters this year. Maersk Reacher will be available for the job after being released from its current work scope in Norway through the planned rig swap with Maersk Integrator.”
DNO has awarded a decommissioning contract to Heerema Marine Contractors for the integrated engineering, preparation, removal, and disposal (EPRD) of the Ketch and Schooner platforms.
The Ketch and Schooner platforms are located in the southern North Sea in the UK sector and were installed by Heerema in the 1990s. Both platforms are tied-back to the Murdoch complex, which will also be removed by Heerema Marine Contractors.
The Ketch platform is located in a water depth of 54 metres, and the Schooner platform is located at 71 metres of water depth. After removal, both structures will be responsibly disposed of and will be reused or recycled up to 97%.
Michel Hendriks, Heerema’s Decommissioning Director, commented, “Heerema is proud to be the contractor of choice for the decommissioning of the Ketch and Schooner platforms. The EPRD award is the result of our ambition to remove offshore structures of all sizes in a safe and sustainable manner.
“We are especially pleased to contribute to the circularity of the project by being the installation and removal contractor, which is in line with our own sustainable circular ambitions.”
The Petroleum Safety Authority Norway (PSA) has published the results of an audit of Equinor regarding the permanent plugging of wells on the Veslefrikk field.
The results have been published following the audit conducted on 30 September 2021 which was carried out in order to monitor that Equinor’s system for preparing, planning and executing the permanent plugging of wells on the Veslefrikk field complied with the regulatory requirements
In the audit, PSA examined how Equinor plans and follows up the verification well barriers the verification of well barriers; the use of new technology/methods/new materials; the assessment of risk and associated uncertainty; changes in operational sequencing; and the implementation of lessons learned from completed operations.
PSA concluded that no non-conformities and improvement points were identified allowing Equinor to move ahead.
Isaac Kenyon, SpatialEnergy Data Analyst at MapStand, spoke to Offshore Network regarding his company’s auspicious start when it launched just before the pandemic and how it has taken this adversity in its stride to help the oil and gas industry reap the benefits of data.
MapStand was created when Founder, Francis Cram, identified a major gap in the market while working at a small E&P business situated in the southern North Sea. Cram realised that one of the biggest frustrations for his company (and many others like it) was that while there were a lot of data providers available, all were very expensive and that all the free open source data was not together in one place. For many organisations it was therefore a nightmare finding easily accessible and affordable data to support their operations. With a view to changing this, Cram founded MapStand in order to build a product that brings in open source data from all around the world and make it available in one place a range of companies can easily access and utilise it, without having to pay fortunes.
Kenyon explained, “Different data providers such as governments have different data portals and these are all separate. MapStand’s aim was to combine all of these into one place with no border dividers which makes life a lot easier, especially in regions such as the North Sea where there are a lot of different countries performing different types of activities.”
The MapStand Community online platform provides global data coverage and is free for anyone to sign up, view and explore data sets. The multi-layered search feature allows company asset summaries and country overviews for E&P, Renewable Energy and Infrastructure insights.
“We have a lot of people who are excited about the product and want to support it which they do so by providing feedback in areas where we might not necessarily have as much data. They offer data they have produced or can point us in the direction of where to obtain it. A lot is therefore crowd sourced and in some areas we also get a lot of relinquishment reports from certain government agencies etc which helps to map these areas and show potential explorations prospects and leads for users,” Kenyon stated.
Products serving the industry
Aside from the MapStand Community Platform the company also has two other main products which it has launched – the MapStand Hub and the MapStand Enterprise.
The Hub is a cloud-based web mapping area for clients which adds a lot more functionality such as collaborative real-time working within a online geospatial portal. “This is a geospatial workspace is where you can pull in data sets, manipulate them and create dashboards. You can drill down on data sets, filter attributes and more. Through the Enterprise subscription we are able to distribute our data layers into other companies’ software and through APIs people can tap into our data sets and bring our data into their own products,” said Kenyon.
The Newsfeed is a functionality of our app which may in the future turn into a product where users can get daily updated sources of company activity and announcements from the energy industry. Kenyon commented, “Platforms, infrastructure, etc in the database get tagged to the newsfeed and by clicking on these tags users will get taken to those objects on the map – allowing them to explore news in a different way.”
Supporting the energy transition
Kenyon explained that the products aid oil and gas companies by providing up to date information on dispute management and territorial claims which is especially important when it comes to licences. However, MapStands solutions have been particularly useful in supporting the industry’s fight against climate change – an issue which the company keeps close to its heart.
Kenyon noted, “A lot of oil and gas companies are looking to get involved in the energy transition and re-positioning to become energy integrated companies. For them, having the combination of renewable power data sets with oil and gas data sets is very useful. We can help to highlight opportunities around carbon capture storage, building windfarms to support activities, electrifying platforms, etc.”
Collaboration is key for driving this energy transition and indeed the company, Kenyon continued. He added, “We want to scale up our energy transition collaborative efforts. Being able to work together to share data will help everyone reach their climate goals quicker and everyone will have an equal playing field know where things are and who is doing what/where. People can go on MapStand looking for opportunities and may see that there are lots of different projects nearby they have never even heard of which they could get involved in. One of our main ambitions is to promote collaboration and transparency, especially around energy data.”
In for the long-haul
Launching just before the dawn of Covid-19 was unfortunate timing, however MapStand adapted well, re-considered their goals and now have an eye for expansion on the future. “Covid was hard-hitting on the oil and gas industry at the start and we pretty much launched straight into this. We had to scale back a bit on a lot of our ambitions but we have also pivoted and focused on the long-term to support the energy transition. In many ways the pandemic has helped drive this transition and we are looking to support this going forward. Our ambition now would be to scale up the data sets we provide.”
“We are also trying to improve our products for users and are constantly working on automation and making our processes a lot smoother. Finally, we want to continue to grow our community. The larger we grow in terms of cliental and the more people signed onto our platform app the better our data quality will be worldwide,” Kenyon concluded.
Find the latest update to MapStand here.
At UDT EU LIVE 2021, in London, the energy community gathered for some much-needed networking and knowledge sharing as it continues to work through one of the most tempestuous periods in living memory. At UDT LIVE 2021, in London, the energy community gathered for some much-needed networking and knowledge sharing as it continues to work through one of the most tempestuous periods in living memory.
Senior figures and decision makers from operators, service companies, consultancies and more were in attendance, following on from UDT EU VIRTUAL which was held earlier in the year.
The key topics covered included change management, collaboration and partnerships, business change, environmental impact, data, and the energy transition. Unique presentations and panel discussions were held on each, as the energy community took the time to consider the most prominent issues impacting their business.
Highlights included:
Spirit Energy: Esther Diederen, Digital Transformation Lead, Spirit Energy, showcased her company’s digital transformation journey which, so far, has delivered 2x the cost of the initiative. From the start, the company identified that it was important to start small, and gained momentum in order to foster a sense of movement right from the start. By doing this, employees were able to see progress and benefits, and were more willing to participate.
Diederen also touched upon lessons learned along the initiative including the importance of stakeholder management, the need to stick to the ambition and vision, team diversity is a key strength, delivering a mix of quick wins and foundational deliveries is imperative and the value of failing quick and knowing when to stop. While there were still some nuts that the company needed to crack, there had been notable changes to the way the company was working and this was beginning to reflect in the value saved.
Kongsberg Digital: Stian Skjaevesland, Global Commercial Director – Digital Wells, Kongsberg Digital, explored how real-time data is collected and whether it could be collected with better quality and make more use of it; looked at how digital transformation efforts have started breaking down silos so that contextualised data is now available which adds a new layer of insight to the end-users of today and tomorrow; and showcased a used case where the company is using the contextualisation of data to reduce admin time and do real-time reporting for an operator that they work with.
Imaged Reality: With the expensive nature of field trips to assess geology and travel restrictions still hampering movement, Claudia Ruiz-Graham, CEO of Imaged Reality, explained how virtual reality can be utilised for immerse learning to substitute for visits on-site. The company’s 3DGaia platform is a tool for the oil and gas industry to explore locations in a virtual format from the comfort of home with features including remote collaboration; direct outcrop interpretation; satellite imagery; integration with seismic images; well logs and more; interpretation tools; and the ability to add personal content.
With the networking complete, attendees returned to their companies with fresh ideas and lessons learned in mind. UDT EU will return in December 2022 where it is certain that another year of dealing with Covid-19 and technological advances will provide fresh points of discussion for another exciting conference.
After receiving a letter of intent for decommissioning work in Norway in March 2021, Aker Solutions has now formally signed a sizeable award with Heerema Marine Contractors for the decommissioning of the Heimdal and Veslefrikk fields.
The scope of the work includes the reception, dismantling and recycling of three offshore installations from the fields. The Heimdal and Veslefrikk platforms will be removed by Heerema Marine Contractors and transported to Aker Solutions' decommissioning facilities at Eldøyane in Stord, Norway.
The infrastructures to be removed weigh approximately 68,000 metric tons in total. The objective is to recycle about 98% of the steel and materials.
Early engineering will begin directly for the Heimdal platforms and earliest start of offshore executions can be in 2024.
After a rigorous selection process by a panel of expert judges, on a night filled with celebration and laughter in Aberdeen, the winners of the Offshore Well Intervention Global Awards 2021 were finally revealed.
Spanning six separate categories, the awards recognised companies which had, across another incredibly challenging year, remained stalwart in their commitment to progressing the well intervention industry through creating new practices, evidencing new techniques and launching new technologies.
The OWI Awards 2021 winners:
Most Innovative Solution: Baker Hughes
Recognising that subsea wellhead removal from vessels can bring constraints and risks, Baker Hughes introduced the Terminator vessel-deployed, ROV powered subsea wellhead cutting system. This system includes a hydraulic motor, wellhead connector, and Hercules cutter in order to facilitate safe, efficient and cost-effective wellhead removals in a period of less than an hour for single cuts.
Using a mechanical cutter instead of AWJC methods, the Terminator system only requires two personnel to operate (6-8 are required for AWJC methods) and eliminates associated risks with high pressures, among other advantages.
The solution was deployed by Neptune Energy in the North Sea and was able to save the operator 6-12 rig hours while achieving no down time and no HSE issues.
Paul Stein, Commercial Director Subsea Intervention at Baker Hughes, said, “This award goes to the heart of Baker Hughes’s values around Collaborate, Lead, Care and Grow. To achieve this recognition, the team touched on all four of these values. Huge congratulations to both Jarle Hvidsten and Dave Scott, together with the Terminator project team in making this happen.
Commenting on the next steps for the Terminator solution, Stein added, “Proving the technology is now doing more work for customers and broadening its utilisation across the globe.”
Best Project Outcome: BiSN
BiSN was crowned victor of the Best Project Outcome for an outstanding campaign in the North Sea. The company was commissioned by AkerBP to set a final barrier within 30 wells to ensure a secure environmental solution so that the plugged wells did not emit pressurised gases. Due to the need to properly secure the well prior to the conductor removal, a non-permeable bismuth plug was placed inside the conductor to mitigate all risks for hydrocarbon migration from within the wellbore before the surface casing and conductor were removed.
The BiSN Wel-lok™ M2M technology was utilised for this campaign which was able to provide an environmentally safe gas tight sealing solution while reducing time, personnel and equipment required. The campaign was concluded ahead of schedule and all 30 plugs have been tested so that no emittance of gases will be detected, for perpetuity.
Colin Wooller, Global Head of Marketing at BiSN, remarked, “The whole team at BiSN appreciate the acknowledgment of winning such a prestigious award, it was truly a global effort with a very detailed testing programme completed at our UK and USA facilities in the two years prior to the start of the main campaign. Manufacturing of the tools were a separate challenge as these were the largest metal P&A plugs ever manufactured, weighing in at 15 tonnes. AkerBP provided support and technical input throughout the process, including obtaining approval from the Norwegian Petroleum Authority (PSA) to deploy the tools as a barrier, another major milestone in the acceptance of the BiSN products as a permanent P&A barrier.
“Building on the back of the PSA approval and with 300 tools now deployed across the globe, the next few years are packed with excitement for BiSN. We are leading the world in the deployment of bismuth-based alloy tools not just for P&A, but for a full range of completions and invention applications. Our research department also continues to develop new products including the soon to be launched Perf & Melt™ product that will revolutionise the P&A market again by bring the possibility of true rigless abandonment for the first time, with the elimination of section milling.”
Best Example of Collaboration: Subsea Services Alliance
The Subsea Services Alliance, which combines the collective knowledge and strengths of Schlumberger and Helix Energy Solutions Group, has been named the best example of collaboration at the Offshore Well Intervention Global Awards 2021.
The non-incorporated collaboration was conceived to deliver integrated subsea intervention and decommissioning solutions to the offshore oil and gas industry in order to maximise economic recovery and lower costs.
The capability of the Alliance has been demonstrated in the delivery of the Q7000, an advance semi-submersible well intervention vessel. The vessel has been hard at work in West Africa performing campaigns for Exxon Mobil, Total and Chevron in Nigeria; successfully lowering POB, increasing operational efficiency and capturing value.
David Carr, Senior Vice President of Helix Well Ops, noted, “After 7 years of the Subsea Services Alliance, and almost 100 wells intervened by an integrated Helix/Schlumberger package, we are very pleased to be acknowledged by the industry.”
HSE Innovation: FENNEX
FENNEX was recognised for its Behaviour-Based Safety Solution (BBSSTM) which addresses the challenges and complexities associated with end-to-end workflows governing the safety management in the offshore oil and gas industry.
Developed through the combination of deep-industry knowledge and cloud computing technologies the solution is engineered using AI and Machine Learning Technologies to allow the easy input of critical safety data into a collaborative cloud environment so that customised reports can be published in real time.
This enhances the visibility and transparency of critical trends of operations HSE risks and hazards across organisations, which was demonstrated through its implementation across Noble’s global offshore fleet. In six months the BBSSTM delivered significant operational and sustainability efficiencies including a safer workplace, boosted engagement by 30%, and a reduction in programme cost by 70% – saving 15,000 man-hours and up to half million paper cards each year.
Nassima Brown, DIRECTOR of Business Strategy & Administration at FENNEX, remarked, “We are honoured to receive this prestigious award; to be recognised as a leader in breakthrough technologies to advance safety performance in the energy sector is a wonderful endorsement of our team’s efforts and dedication to transforming the delivery of digital solutions for our industry.
“For a small tech company as ours, this recognition helps raise our profile, and provides us with an incredible industry exposure – shining a spotlight on the fantastic achievement that is possible through collaboration and strong partnership with our forward-thinking customer Noble Drilling.”
Brown added, “Our ambition is to rapidly expand and scale up the application of BBSSTM within the energy industry, and play a part in transforming and optimising critical business processes to pursue excellence in safety performance, not only within oil & gas, but any high-hazard industry.
“We will continue developing state-of-the-art digital engineering capabilities and unique skills that will be critical to drive further business value, as the industry moves into a high-efficiency future. The BBSSTM technology is the blue-print that demonstrates the significant efficiencies that are realised through agile, scalable and cost-effective solutions, and we are strongly committed to forge further partnerships, and work together to accelerate more innovations.”
Most Impactful Technology: 3M
As of October 2021, 3M has completed 125 installations of Ceramic Sand Screens for users and has maintained a manufacturing time of 6-12 weeks with variables such as size, quantity and shipping time to location.
INEOS initially contacted 3M as they wanted to fracture existing and newly drilled well stock in order to optimise production rates from a tight reservoir. For this scenario, solids control was critical and sand control ranking and selection required a cost-effective approach to sand free production over the well lifecycle.
3M responded with their Ceramic Sand Screens which were E-Line deployed in a single run through the riser system to 65° set depth. Once installed the company was happy to record no proppant flow back for eight wells in two fields and that well installations from 2014 are still producing to this day with no sand control failure. This innovative technology mitigated the need for costly surface solids separation packages, allowing INEOS to save significant costs.
Richard Jackson, Global Product Manager, Glass Bubbles & Ceramic Sand Screens at 3M, commented, “This award positions 3M’s Ceramic Sand Screen Technology as a standard and simple sand control deployed technology extending the erosional boundary envelope from a traditional methodology approach. This technology enables further value creation of optimised productivity return Operator’s request, especially in these uncertain markets.
“3M is in the process of launching its Next Generation Portfolio and associated technical and commercial quick check tool, building on its experience to further partner, support and deliver the needs of the sand control market, both in intervention and new well (cased and open hole) applications.”
Most Significant Contribution to the Industry: AME Pty Ltd
AME Pty Ltd was named winner of the prestigious awards for its Colossus In-Line String Compensator – a portable passive heave compensator that is fully self-contained and can be easily rigged up in an existing derrick to supplement or replace the rig heave compensation system.
The Colossus ILS’ sleek and functional design minimises hang-ups and clashes with hoses and cabling; requires no intervention during operations; and provides essential monitoring data directly back to AME operators and driller. Together with the Modular Tension Lift Frame it forms a primary passive compensation solution catering for well intervention, completions and well testing on board floating MODUs.
The benefits of this combined offering, such as the ability to consolidate equipment on deck to reduce the required footprint prior to and after operations and the fact that they can be rigged up and run by the drill crew with one single AME Specialist required on each shift, was enough to clinch the victory for AME at the awards ceremony in Aberdeen.
Lara Marmion, Project Engineer at AME Pty Ltd, said, “Winning this award is an honour for AME. We are proud to have been recognised by our peers as having made a significant contribution to the global well intervention industry.
“Due to an increased demand for the ILSC and AME’s other specialised equipment, we are currently in production building more equipment & expanding the fleet. AME continues to grow, having recently opened an office in Melbourne, Australia, and we look forward to returning to Norway when travel arrangements permit.”
The OWI Awards will return in 2022 to celebrate the best of the well intervention community. To stay informed regarding submitting nominations, joining the judging panel, attending the awards or hosting reach out to Isobel Singh:
Email:
Phone: +44 (0) 203 409 3043
At the Offshore Well Intervention Mediterranean 2021 conference, Remke Ellis, Domain Champion at TGT Oilfield Services, hosted a panel session to discuss the economics of well intervention and how to implement effective preventive maintenance plans in order to boost production.
Ellis opened the session by asking the panellists about ways to implement successful well intervention operations. With more than 10 years experience in completion workover well intervention, Atef Mohamed, Completion and Workover Supervisor at BAPETCO, explained that case study is essential and that key points of the operation that need to be addressed need to be set at the start – these include the scope of operation, a credible programme plan, an equipment checklist, an approved MOC, a calculation review as well as a crew and operator checklist.
Mustafa Adel Amer, Well Integrity Specialist at BAPETCO, added that the delivery of the technical aspect of the operation itself from the asset team has a big contribution to a successful project. Amer, an engineer and natural gas analyst with years of experience in the upstream oil and gas sector, gave an example by noting that the delivery of the right range of the reservoir pressure and the right range of perforation contribute to the operation being done efficiently and safely. For instance, wrong delivery of reservoir pressure can lead to safety hazards and equipment loss. Strong delivery and communication between petroleum engineering and well operations, with clean delivery of technical aspects is needed for a successful operation.
Proper well control of the operation
Mohamed spoke about measures of proper well control, commenting that operators have to differentiate between rig-based well intervention and rigless operations. When working without a rig, hazards exist because they are dealing with high well pressures. The engineers have to also confirm all the equipment is certified and depression tested. After the operation is started, the operators have to determine whether they are deploying slickline or E-Line because there are noticeable differences between one another. If they are going with whole tubing, confirming the proper functioning of check valve becomes crucial because whole tubing needs to be controlled from both inside and the outside. This option is not valid incase of slickline, or Eline because of the presence of the wire and the control around it.
Amer added that setting scenarios before going to the operation proves to be quite handy. For example, simulating scenarios of what can go wrong can help the team in repairs and in case of an unexpected event, implement measures to deal with it. Rather than dealing with it on the site, it is always good to have prior knowledge about shortcomings.
Training for the drills in well control situations for the crew is also very important and it is crucial to determine the weaknesses of the crew and if they can deal with it correctly in case of an emergency.
Checking for discrepancies in oil wells downhole
Oil pressure plays a major role in well intervention. The operators have to select the appropriate casing for the reservoir. For example, if higher oil pressure is detected, the operator might as well choose a higher-grade casing to deal with the amount of pressure. The panel concluded that oil pressure plays a major role in well intervention and having the right equipment for it also makes a huge difference in carrying out the intervention in a safe and efficient manner.
The panellists concluded by noting that, in order to increase production in both gas and oil wells it was important that that well integrity and production enhancement worked together before also acknowledging the growing influence of data analysis in the well intervention space – a phenomenon which will only serve to enhance campaigns in the future.
First Marine Solutions (FMS), an offshore moorings expert, awarded a seven-figure contract by well decommissioning specialist, Well-Safe Solutions.
The agreement will see FMS provide its full spectrum of marine consultancy services, including provision of equipment, marine services, and survey and marine engineering.
Earlier this year, Well-Safe Solutions announced it had secured the contract to execute all well decommissioning activity within Repsol Sinopec UK’s Buchan and Hannay fields. FMS’ contract will commence with this 14-well project.
Steven Brown, FMS Managing Director, said he is incredibly proud to be associated with such an innovative project. He remarked, “This well P&A campaign represents a shift in the offshore decommissioning commercial landscape for which we applaud Well-Safe Solutions. I believe its decision to award this contract to FMS firmly establishes our reputation as the North Sea’s leading integrated mooring and marine service provider.
“The agreement has been four years in the making – a period of time that has seen FMS evolve to an impressive extent through significant investment in personnel, technology and facilities. Since 2017, our workforce has increased fourfold and is now led by a management team of industry experts, allowing us to strengthen our position not only in the North Sea but across a number of international markets; we look forward to supporting Well-Safe as it expands its global business.”
Commenting on the contract award, Lou Duncan, Rig Manager at Well-Safe Solutions, noted, “As we prepare for the deployment of the Well-Safe Guardian, it’s vital to us that we utilise trusted partners to enable timely and safe fulfilment of our obligations.
“Key to our philosophy is the importance of collaboration in order to capture, retain and share knowledge for the benefit of our clients and future operations. We’re looking forward to working alongside FMS during a period of strong growth for Well-Safe Solutions.”
In an operational and financial update, Hurricane Energy has announced that it has successfully completed the plugging and final abandonment (P&A) of the Lancaster 205/21a-4z well.
The well is located in the Lancaster Field, West of Shetland in Scottish waters, which was discovered in 2009. The company is implementing a phased development of the field with the first phase of development, the Early Production System (EPS) coming on stream in June 2019.
During November 2021, the company plugged the 205/21a-4z well for a cost of c. US$1mn. Hurricane also disclosed that US$2.2mn of decommissioning security (previously classified as restricted cash) has now been released back to the company and has been used in part to fund the P&A activity.
Neptune Energy has awarded a decommissioning contract to Maersk Supply Service (MSS) for the Juliet field in the UK southern North Sea.
The decommissioning work, which will be carried out in early 2022, will utilise innovative technology to reduce the time and costs associated with the removal of the subsea infrastructure.
Piping spools and umbilicals will be removed using the Utility ROV Services system (UTROV), a remotely operated tool carrier equipped with multiple attachments for the recovery of subsea equipment, reducing the necessity for multiple vessels and equipment providers to carry out the complex work.
The UTROV system was previously used for work on the Juliet field in 2019 and will be deployed from the Maersk Forza Subsea Support Vessel.
Neptune Energy’s UK Managing Director, Alexandra Thomas, commented, “Work on decommissioning Juliet is progressing well and the activities undertaken by MSS will finalise the work on the pipelines and enable us to move forward with plugging and abandonment operations.
“The use of such innovative technologies is enabling operators to reduce the time, costs and environmental impacts associated with such operations, and ensures the safe and efficient removal of decommissioned subsea infrastructure.”
Olivier Trouvé, Maersk Supply Service’s Head of Integrated Solutions, remarked, “We are looking forward to mobilising our engineering capabilities and specialised assets to provide safe and efficient operations.”
The Juliet subsea assets were installed in 2013. Production ceased in 2017 and formal cessation of production was approved in December 2018 by the OGA. The Juliet facilities comprise two subsea wells tied back to the Pickerill ‘A’ Platform, which is owned and operated by Perenco (PUK).
Neil Greig, Sales Manager Helix well Ops (UK) Ltd, presented at the Offshore Well Intervention Mediterranean 2021 conference to highlight the capabilities of the Subsea Services Alliance and how these could be utilised in the Mediterranean.
Greig started the session by giving a detailed explanation on how intervention operations are performed from riser based vessels using dynamic positioning before adding that Helix has various intervention assets around the world capable of performing such work.
In areas such as the Gulf of Mexico the company tends to have heavier assets whereas closer to the Mediterranean in the North Sea the backbone of the fleet is made up of Light Well Intervention (LWI) vessels. These include:
Seawell ‒ A pioneered LWI vessel which provides platform for open water interventions, hydraulic, DSV and P&A services and is perfectly suited to pre-abandonment activities on old, weak well systems that require divers with the benefit of being agile in the field.
Well Enhancer ‒ Primarily an LWI and DSV asset but it is also the world’s first monohull vessel capable of coiled tubing intervention and, to date, has completed six successful campaigns with more planned.
Both vessels can perform LWI and DSV activities simultaneously bringing safety and efficiency as well as commercial advantages.
In terms of riser-based assets, Helix has a capable fleet made up of the Q4000, Q5000, Q7000, Siem Helix 1 and Siem Helix 2.
With the help of these vessels, Greig continued, Helix is able to perform operations on the full lifecycle of a field although the majority of their work is carried out in mid to later term life. They ensure maximum output of a reservoir throughout its life while avoiding damage. There is also opportunity to maximise the output of a well in ultra late life in order to offset decommissioning costs.
On the Mediterranean, Greig remarked that access to LWI in the region has been limited over the years whereas in the Gulf of Mexico, UK, Africa and Brazil there is always access to two-three LWI vessels at any one time.
Greig said, “When you want to start transporting assets to where there are not permanent vessels, this is where collaboration comes in. It is important for everyone to collaborate to make an agreement viable and get the asset in the region – you need all countries and operators to come together to create enough work. This happened in Africa and now we have some vessels down there which have scheduled work for the next few years. Once you start, there is every likelihood the work can be kept going.”
An example of excellence in Africa
Helix’s newest vessel, the Q7000, has continued its impressive streak of successful operations in West Africa where it has performed a variety of scopes including data acquisition, water shutoffs, milling, flaring, and more. It has already covered the majority of types of activities the company is looking to do with her.
Going through its advantages, Greig noted that being a DP asset it can transition at 10-11 knots (providing a significant ability to position itself without anchor handlers); its IRS single deployment means that hole trips are completed in hours not days; the Intervention Tension Frame (provided by Osbit) provides a safe working environment from which coiled tubing and wireline operations can be conducted; and the crew size has been reduced by 11 for coiled tubing and wireline and slickline operations.
Solving any problem
Greig remarked that throughout its history Helix has encountered every worst-case scenario that can be imagined and has used the full suite of tools to navigate them. Helix has, to date, performed more than 128 tree recoveries just from the UK and has conducted plug and abandonment on 155 suspended E&A wells. It has now worked on more than 1500 wells, including recently hitting 1000 wells in the UK as of August 2021.
Greig finished by noting that they have no intention of letting up but want to continue their expansion including into other parts of the Mediterranean. “There is an opportunity in the Mediterranean; it is just a case of starting the dialogue.”
Page 26 of 34
Copyright © 2025 Offshore Network
