Treating and removing scale build-up within a tubing retrievable subsurface safety valve (TRSSSV) can be problematic, costly, and timely. For scale dissolvers to work effectively, they require extended soak periods to penetrate the scale.
To meet this problem, Oilenco has introduced the Oilenco Bullheading Jetting Sleeve which combines traditional soaking methods with a ‘jetting’ action, targeting scale dissolvers directly at critical components of the downhole safety valve, agitating the scale as well as soaking it?
Combining two tried and tested technologies, the new tool delivers optimum scale treatment results by using a repeated method of scale soak and targeted jetting.
Requiring minimal well intervention, this innovative product is designed to precisely target critical areas within the TRSSSV using a ‘jetting’ action to optimise distribution and efficacy of scale treatment. Designed with a minimum of two jet subs, the system is preconfigured to target key mechanical components within the TRSSSV before being deployed into the well on slickline.
Unique to the Bullheading Jetting Sleeve is the multi jet sub system. Each jet sub consists of an array of micro nozzles that create a 360⁰ jetting pattern. By positioning two or more jet subs at key locations within the safety valve (i.e. flow tube, exercise profile, flapper, etc.), scale dissolver can be precisely targeted at these critical areas.
Between each jet sub there is a flowrate sensing valve that directs fluid to either the upper or lower jet sub depending on the velocity of the fluid passing through it. When pumping stops, the jetting stops. When not jetting, the Bullheading Jetting Sleeve reverts to a conventional soak arrangement allowing the scale dissolver to soak into the scale. As soon as surface pumping is reintroduced, the jet subs become active and intense fluid agitation can recommence.
With constant replenishment of fluid, the system maximises performance of the scale dissolver in the most efficient time frame. Every drop of dissolver can be targeted at any critical area of the TRSSSV where scale build up could be affecting the functionality of the valve.
An ideal dual technology solution when scale build-up is identified as the likely cause of a TRSSSV not functioning, the Bullheading Jetting Sleeve (patent pending) is an innovative addition to the Oilenco safety valve management portfolio, re-establishing the integrity of a well and allowing operations to continue.
With an ever-increasing demand and healthy oil price appearing to reach relative stability, much of the oil and gas industry has thrived across 2022, despite the tumultuous geopolitical environment threatening to upset Covid-19 recovery efforts.
As supply from Russia continues to reduce, European countries are preparing to fill the gap by boosting production while balancing their environmental commitments. To help walk this tightrope, there are calls for operators in the North Sea to invest more into offshore well intervention an opportunity which could see it emerge as a cornerstone of the North Sea industry.
With more capital available for spending on such activities and a plethora of shut-ins, experts have highlighted how the industry is also presented with a blank canvas in the North Sea for testing new technologies. The eventual implementation of these could really help tip the balance in the risk versus reward scale and take down a potential barrier preventing future interventions.
While stimulating production is the most pressing concern at this time, increasingly influential regulators are ensuring that the decommissioning wave on the horizon is not removed from gaze. As climate concerns continue to mount and the ageing region advances in its maturity, there is growing pressure for the industry to expand their attention on end of life activity. This is work that will not simply disappear and, with soaring profits rolling in from high demand and healthy oil price, there are calls for operators to take advantage of this boom and get ahead of their liabilities – a trend which could open up the market for companies offering project management, engineering analysis, data collection, downhole tools, etc within this workscope.
Download the full, free-to-read report on these trends and more here.
The North Sea Transition Authority (NSTA), in its latest Wells Insight Report, has recommended a series of measures to bolster oil and gas production in the North Sea.
The report found that drilling activity had remained low in 2021 due to the impact of Covid-19 with drilling operations falling from 141 wells in 2019 to 66 in 2020. It added that, as a result of this production totalled 480 million barrels in 2021 which was down from 600 million in 2019.
The NSTA report suggested that drilling will most likely pick up in the medium term, spurred by the 33rd offshore oil and gas licensing round (the first since 2019).
However, a pivotal component of bringing production rates back up is the implementation of more well interventions – a policy which the NSTA wishes to see more of. It noted that due to a reduction in well maintenance in 2021, the performance of the existing wellstock has further declined, with 34% of total active wells on the UKCS now shut-in or plugged.
Many types of intervention cost just UK£5-10 per barrel, which should make it an attractive option for industry, particularly when oil and gas prices are high.
Disappointingly, the NSTA added, intervention work was carried out on just 15% of wells in 2021, down from 17% in 2020, resulting in the addition of only 36.2 million barrels of production, well below the average of 50 million added in previous years.
Some operators are facing logistical constraints on their platforms and/or with supply chain availability. In addition, subsea well intervention remains stubbornly low, as fewer than 10% of subsea wells are being surveyed and/or receiving maintenance work each year.
To sustain domestic production and bolster the UK’s energy security, the NSTA is actively working with operators on ways to accelerate exploration and development plans and perform more maintenance and intervention work on the existing well stock.
Dana Petroleum has selected leading service provider, Petrofac, to provide well management services for all of its UK North Sea operated assets.
The two-year contract, which will include providing services to both the Triton FPSO (Floating Production Storage and Offloading) and the Western Isles FPSO vessels, continues on the back of an existing five-year relationship between the two companies. Petrofac previously provided outsourced well engineering services to Dana’s 11 operated and 18 non-operated Licenses in the UK North Sea.
The contract includes full life cycle well engineering, from initial concept through detailed design and planning, supporting well construction, intervention, and decommissioning activities. The contract is valued at approximately US$60mn.
“I’m proud of the value we have been delivering to Dana for the last five years, but there is no better validation of our delivery than our customers decision to retain our services. We look forward to supporting their delivery of value for their shareholders through continued safe, reliable and efficient operations,” said Nick Shorten, Chief Operating Officer, Petrofac’s Asset Solutions.
Chief Operating Officer at Dana Petroleum, Andy Duncanson, said, “We are really pleased to award this new contract to Petrofac. Dana is committed to doing all we can to support the supply chain and nurture the specialist skills that are so important for both our business and the wider sector.”
Leading energy services provider, Expro, has successfully completed the plug and abandonment of Ireland’s first indigenous gas wells.
Expro provided the delivery of integrated subsea and well test services over an eight-month period to intervene, plug and abandon subsea wells from a mobile offshore drilling unit located in the Celtic Sea.
The intervention scope utilised Expro’s ELSA (Expro Landing String Assemblies) system, supported by a complete backup system and direct hydraulic topside and subsea controls package.
Achieving more than 3,000 successful operations globally, ELSA is Expro’s industry-leading subsea well access technology, providing clients with a safe and environmentally secure operating system for commissioning and decommissioning subsea wells.
Expro’s Vice President of Subsea Well Access, Graham Cheyne, said, “With ten wells successfully intervened and abandoned one after another in a short timeframe, the reliability of the system was proven with 100% operational uptime and zero NPT, improving the efficiency of Expro and our client’s subsea operations over the extended operational period.
“This project not only enhances our already established subsea well access experience and track record, but it also demonstrates our strong position to deliver value and extraordinary performance in the integrated decommissioning and plug and abandonment market.”
The Petroleum Safety Authority Norway (PSA) has given its consent for Aker BP to use the mobile drilling facility AKOFS Seafarer for well intervention activities on the Skarv field.
The AKOFS Seafarer is owned by AKFOS Offshore which undertakes well intervention and subsea installations in Norway as well as internationally.
Located in the Norwegian Sea, the Skarv field has been developed with a floating production, storage and offloading vessel (FPSO) with five subsea templates with 15 wells. Work is ongoing to evaluate the potential of infill wells and other prospects in the area due to a decline in production.
At the OWI MED 2022 conferenee, Abdullah Moustafa Mohamed Saad, Senior Production Technologist, Cheiron/Bapetco, will explain how changes in conditions lead to low and zero coat production gains.
The conference will be held in Athens, Greece, on 20 September 2022. The hottest talking points within the Mediterranean and North Africa region, along with the latest well intervention intelligence from the region will be discussed at the event.
Abdullah will help the audience learn about closed in gas wells in heterogeneous reservoirs and explore how changes in stimulation cost unlocks more economic potential.
Through his presentation, he will make participants analyse artificial lift optimisation and cost changes and explain them the impact of reduced back pressures from years of production loss, that could help in intermittent operations.
Visitors at the event can explore well stimulation methods and effective production enhancement strategies to increase well stock value in mature wells.
Reach out to the details below:
Joseph Watson
Project Manager
T: +44 (0) 20 3409 5720
e:
OWI MED 2022 is back as a live event after last year’s inaugural virtual launch. The conference will be held in Athens, Greece, on 20 September 2022. The hottest talking points within the Mediterranean and North Africa region, along with the latest well intervention intelligence from the region will be discussed at the event.
Eman Sayed Shahin, Performance Lead and Senior Petroleum Engineer from Dragon Oil, will be presenting a case study on the success of advanced reservoir management via an integration between real-time monitoring system and classical reservoir model, in the Gulf of Suez.
She will review how the J-100 well was equipped with a real-time automation system, which helped detect problems in the well and reduce delays in receiving data from periodic visits to the well.
Eman will explore how this integrated work-flow highlights the integration between real time remote monitoring systems in offshore fields and how this can add considerable benefits to the business.
Reach out to the details below:
Joseph Watson
Project Manager
T: +44 (0) 20 3409 5720
e:
Well-Safe has awarded a contract to Trendsetter Engineering for the utilisation of the Trident Intervention System and technical services for abandonments in the UK, North Sea.
The system will be deployed from the Well-Safe Guardian rig to conduct a multi-well P&A campaign for an estimated 320 day duration.
Trendsetter owns and operates five 15,000 psi subsea intervention systems for hydraulic, riserless light well and intervention riser-based operations. Their flagship intervention system, TRIDENT, utilises advanced technologies to provide high-spec capability in a lightweight and modular package, furthering Trendsetter’s goal of bringing innovation to subsea intervention.
Mike Cargol, Vice President of Rentals & Services for Trendsetter Engineering, commented, “We are excited to work with Well-Safe to bring TRIDENT to the North Sea for plug and abandonment operations. We look forward to providing our value-added intervention services and are eager to identify additional opportunities for collaboration for our two companies.”
Neil Ferguson, Operations Director at Well-Safe Solutions, added, “Trendsetter is an ambitious partner with a strong track record of technical delivery around the world. Adding this capability to the Well-Safe Guardian unlocks considerable operational improvements and time savings for our clients during well intervention operations.”
At the OWI MED 2022, being held in Athens, Greece on 20 September, Matthew Vick, Senior Subsea Wells Engineer from bp will speak about their Gulf of Mexico riserless intervention campaign.
Attendees will have the exclusive opportunity to access a case study from bp on their ongoing riserless Intervention Campaign in the Gulf of Mexico.
Vick will review the broad scope of well access equipment that can be utilised from a single vessel, including mechanical wireline, hydraulic via TRT, hydraulic via well service jumper hose and hydraulic via stimulation choke insert.
During the talk, he will explore an overview of the planning and execution of the campaign including well access, well integrity restoration, well surveillance, well stimulation and protection, and fishing.
OWI MED allows attendees to access new regulations and innovative LWI technologies to develop a best practice intervention strategy for production, integrity and P&A projects.
Reach out to the details below:
Joseph Watson
Project Manager
T: +44 (0) 20 3409 5720
e:
Yerasimos Angelis, Managing Director of GA R&D Ltd., will be presenting a case study at the OWI MED 2022, which will take place in Athens, Greece on 20 September 2022.
He will speak about the highlights from over 300 U-line runs where this market-leading technology has reduced the cost and carbon impact of well intervention operations across the globe, including the North Sea.
The MD will explore U-line technology and how it can reduce cost and carbon impact of well-intervention. Along with demonstrating how the technology has improved the scope of well interventions that operators can achieve within budgets, he will also analyse how the services run on; slickline, e-line and fiber deployment.
The hottest talking points within the Mediterranean and North Africa region, along with the latest well intervention intelligence from the region will be discussed at the event.
Reach out to the details below:
Joseph Watson
Project Manager
T: +44 (0) 20 3409 5720
e:
Paradigm’s e-Winch Technology, used by Archer aboard the Seafarer vessel in Norway, has received praises for playing an important part in significantly increasing well intervention efficiency while reducing CO2 emissions.
In 2020, Paradigm Technology Services B.V, a leader in oilfield technologies, delivered four NORSOK e-Winch units to Deepwell AS (now Archer AS) of Norway, for continuous operations aboard the Seafarer vessel.
Step changes in efficiency, performance and safety were core principles throughout the design and engineering phase, with the four double-drum units containing a wide range of Paradigm’s existing proprietary solutions as well as some new designs. Features such as dynamic breaking and constant speed control (taken from a suite of advanced winch control software options) have added significantly to the safety of vessel-based intervention operations, whilst the new ‘hands-off’ drum exchange system enable drums to be changed out safely without anyone ever being in the line of fire.
A wide range of operations have been performed with the e-Winch units, including plug and perforation, pre-P&A activities (plug setting, tubing punching/cutting), zonal isolations, production logging, injection logging, DHSV replacements, GLV changeouts and tubing/screen punching. Over the past year, the success of the whole Seafarer vessel has been notable and has been attracting industry attention having performed work on a large number of subsea wells within a short time frame.
The control options afforded by the e-Winch technology has helped significantly with the operational performance, with four winch control locations available to the team; a local hand-held remote control, a local deck mounted Zone 1 panel, a full control chair system with control panel with camera feedback situated in the vessel’s control room, and full remote operation from shore (or indeed anywhere worldwide).
William Ash, Managing Director of Paradigm Technology Services, said, “We are incredibly proud to be playing a small part in the success of the incredible Seafarer vessel. To fit such an amount of winch functionality into the restricted footprint was indeed a challenge, but with the great collaboration of all involved it has resulted in an excellent technical solution which is also helping drive down CO2 emissions with the all-electric e-Winch technology”.
Bendt Nybøe, Technical Lead Archer Husoy, added, “Due to the flexible set up, the easy rig up, the special safe drum change out systems, the advanced winch control software, the winches are performing even better and easier than we predicted.”
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