Interwell’s wellhead Integrity technology consists of unique safety solutions offering two independent barriers on the wellhead outlets, controlled access to annulus during injection or bleed-off operations, and continuous pressure & temperature monitoring of annulus even during emergency shut-down. Interwell Advanced Monitoring & Control Solutions including the VR Sensor™, MSAS™, and A-Pro™, provide unparalleled monitoring and dual barriers control of annulus pressure in dry wellheads, ensuring enhanced well integrity throughout the well lifecycle

Annulus Pressure Management Interwell’s annulus pressure monitoring and management system provides a cost-effective and reliable system for continuous pressure and temperature monitoring, and pressure management applications.

Topside 6 products

Casing Barrier Solutions

Leading the way in innovative barrier technology for casing applications. Our advanced solutions ensure the highest standards of safety, performance, and reliability for operational efficiency.

Barrier Verification Barrier verification enhances safety and compliance, reducing risks and costs over time. By implementing robust verification processes, we ensure ongoing regulatory adherence and foster a culture of continuous improvement within the industry.
Temporary P&A Interwell offers secure & efficient Temporary P&A solutions with advanced casing plugs, ensuring well integrity and compliance during well suspension and abandonment operations.
Well Testing (Pressure/Leak/Inflow Test) Detect leaks, perform pressure and inflow tests on casing, liner or BOPs with high operational efficiency and no left-hand rotation.

Upper 1 products

Middle 1 products

Lower 1 products

Completion

Interwell offers cutting-edge completion solutions that enhance production and well integrity, access and flow control. This ensures superior well performance, reliability, substantially reduced rig time during the installation phase and increased well uptime during the production phase.

Flow Control We offer a wide range of products during and after the completion phase. Our flow control products are tested to highest level of industry standards and provide reduced time and HSE risks.
Interventionless Completion Installations Interwell enhances production and eliminates intervention needs during and after completion installations by providing remotely operated completion tools.
Production Optimisation Prevent water influx, increase oil and gas production and extend well lifespan. Isolate zones, retrofit gas lift and optimise revenue through tailored solutions.
Rigless Installation of VXT The Inter Remote Bypass Valve (IRBV) enhances efficiency in subsea operations with a vertical x-mas tree (VXT). It enables batch operations and reduces costs by minimising rig time and interventions, providing a remotely controlled, pressure-cycled barrier compliant with ISO standards.
Scale & Corrosion Management Enhance integrity, well uptime and ensure stable and continuous Chemical Injection (CI) by utilising Interwell’s unique barrier qualified CI solutions.
Temporary P&A Interwell offers secure & efficient Temporary P&A solutions with advanced casing plugs, ensuring well integrity and compliance during well suspension and abandonment operations.
Well Testing (Pressure/Leak/Inflow Test) Detect leaks, perform pressure and inflow tests on casing, liner or BOPs with high operational efficiency and no left-hand rotation.

Intervention

Our well Intervention portfolio comprises of cutting-edge barrier products. Demonstrating the extremes of mechanical barriers; wireline deployed annular isolation to multi-functioning valves, all of which can be verified through novel means.

Annulus Isolation Isolate the annulus to prevent water influx, stop water production, and enhance oil and gas recovery, extending the life of your well.
Barrier Monitoring Log pressure and temperature below a barrier for real-time or long-term verification. Data can be monitored live or sent to the surface.
Completion Repair Repair old and new completions, including setting packers, leak testing and straddle operations. Achieve reduces costs, compared to a full new completion.
Production Optimisation Prevent water influx, increase oil and gas production and extend well lifespan. Isolate zones, retrofit gas lift and optimise revenue through tailored solutions.
Temporary P&A Interwell offers secure & efficient Temporary P&A solutions with advanced casing plugs, ensuring well integrity and compliance during well suspension and abandonment operations.
Well Integrity Re-establish well integrity, extend well lifespan and increase revenue. Efficient, cost-effective solutions compared to new completions.
Well Testing (Pressure/Leak/Inflow Test) Detect leaks, perform pressure and inflow tests on casing, liner or BOPs with high operational efficiency and no left-hand rotation.
Zonal Isolation Advanced zonal isolation solutions for complex well environments, designed to eliminate unwanted fluid migration, restore production integrity, and meet the most demanding regulatory requirements.
Water Shut-Off Excessive water production reduces efficiency, increases costs, and accelerates well decline. Interwell delivers tailored precision water shut-off solutions. Designed to address the root cause, not just the symptom.

Upper 30 products

Middle 26 products

Lower 26 products

Plug & Abandonment

Eliminate risk, prevent leaks and reduce environmental impact; securing your wells and safeguarding the future.

Barrier Verification Barrier verification enhances safety and compliance, reducing risks and costs over time. By implementing robust verification processes, we ensure ongoing regulatory adherence and foster a culture of continuous improvement within the industry.
Reservoir Barrier RockSolid™ Permanent Abandonment Barrier Technology.
Sustained Casing Pressure (SCP/SCVF) Eliminate sustained casing pressure with RockSolid™: a rigless, single-run solution that creates a permanent rock-to-rock barrier, restoring caprock integrity for eternity. Achieve more with less, ensuring unmatched well stability and performance.
Slot Recovery Ongoing rigless deployments with our proprietary, thermite-based solution deliver a targeted exothermic reaction removing all wellbore elements to reinstate caprock integrity in the well cross section; as nature intended and for eternity.
Temporary P&A Interwell offers secure & efficient Temporary P&A solutions with advanced casing plugs, ensuring well integrity and compliance during well suspension and abandonment operations.
Well Testing (Pressure/Leak/Inflow Test) Detect leaks, perform pressure and inflow tests on casing, liner or BOPs with high operational efficiency and no left-hand rotation.
Zonal Isolation Advanced zonal isolation solutions for complex well environments, designed to eliminate unwanted fluid migration, restore production integrity, and meet the most demanding regulatory requirements.

Upper 7 products

Middle 8 products

Lower 8 products

Renewables & Low Carbon

At Interwell, we are committed to a sustainable future by integrating renewable energy solutions into our portfolio of services. With expertise honed over years in the oil & gas sector, we bring a unique perspective and a robust set of skills to the renewable energy landscape.

Annulus Pressure Management Interwell’s annulus pressure monitoring and management system provides a cost-effective and reliable system for continuous pressure and temperature monitoring, and pressure management applications.
Barrier Verification Barrier verification enhances safety and compliance, reducing risks and costs over time. By implementing robust verification processes, we ensure ongoing regulatory adherence and foster a culture of continuous improvement within the industry.
Barrier Monitoring Log pressure and temperature below a barrier for real-time or long-term verification. Data can be monitored live or sent to the surface.
Completion Repair Repair old and new completions, including setting packers, leak testing and straddle operations. Achieve reduces costs, compared to a full new completion.
Flow Control We offer a wide range of products during and after the completion phase. Our flow control products are tested to highest level of industry standards and provide reduced time and HSE risks.
Sustained Casing Pressure (SCP/SCVF) Eliminate sustained casing pressure with RockSolid™: a rigless, single-run solution that creates a permanent rock-to-rock barrier, restoring caprock integrity for eternity. Achieve more with less, ensuring unmatched well stability and performance.
Scale & Corrosion Management Enhance integrity, well uptime and ensure stable and continuous Chemical Injection (CI) by utilising Interwell’s unique barrier qualified CI solutions.
Temporary P&A Interwell offers secure & efficient Temporary P&A solutions with advanced casing plugs, ensuring well integrity and compliance during well suspension and abandonment operations.
Well Integrity Re-establish well integrity, extend well lifespan and increase revenue. Efficient, cost-effective solutions compared to new completions.
Zonal Isolation Advanced zonal isolation solutions for complex well environments, designed to eliminate unwanted fluid migration, restore production integrity, and meet the most demanding regulatory requirements.

Plug & Abandonment RockSolid™ is a new alternative to slot recovery and permanent abandonment (P&A) of wellbores. The technology is based on thermite which melts all well elements and solidifies to reinstate caprock integrity.
Plugs & Packers We provide reliable wellbore isolation in demanding environments, from high-pressure operations to complex well geometries. Offering both retrievable and permanent options, they ensure secure sealing and anchoring for temporary or long-term needs. These solutions help minimise downtime, protect reservoirs and optimise well performance during interventions and workover operations.
Glass Barrier Plugs Explore our portfolio of Glass Barrier Plugs including the Inter Remote Bypass Valve (IRBV) and Inter Remote Shatter Valve (IRSV). These tools improve well performance and safety, reduce wireline interventions, ensure seamless completions and withstand extreme conditions; offering flexible and cost-effective solutions.
Straddle Solutions Interwell’s Straddle Solutions offer flexible tools for well intervention, including production control and safety valve retrofitting. The Anchored Production Straddle (APS) features a slim design for workover applications and gas-lift system retrofitting. The Insert Valve Carrier (IVC) repairs safety valve nipples cost-effectively, while the Injection Safety Valve (ISV) stabilises water injection. These solutions ensure optimal well performance and reduced costs.
Flow Control Interwell’s Flow Control Solutions boost well efficiency and integrity. The Injection Safety Valve (ISV) stabilises water injection and prevents inflow, reducing chattering with adjustable pressure and API 14A compliance. The Intelligent Barrier Valve (IBV) provides reliable, remote-controlled operation; reducing risks, costs and meets ISO 14310 V0 standards.
Setting Tools Setting tools are essential for installing downhole isolation devices and enhancing well interventions & completions. Interwell’s tools, like the Electronic Setting Tool (EST) and Hydraulic Running Tool (HRT), offer control, versatility and efficiency. They simplify operations, reduce risks and ensures cost-effective well management.
Data Acquisition Interwell's data acquisition technologies enable real-time wireless monitoring and control to ensure well integrity and efficiency. Delivering continuous downhole data, these systems simplify operations, reduce costs and enhance safety with easy deployment via slickline, electric line or coiled tubing. Our acoustic communication ensures secure data transmission without affecting barriers. With monitoring capabilities of up to 10 years, these tools are ideal for barrier verification, pressure logging and integrity management; supporting long-term well performance with fewer interventions.
Plug & Packer Add-Ons Interwell’s Plug & Packer Add-Ons enhance well integrity and streamline operations. They ensure secure well isolation, manage flow direction and handle high pressures while collecting debris. Advanced control features and reliable temporary barriers optimise well performance, reduce intervention needs and improve operational efficiency.
Chemical Injection Interwell’s Chemical Injection Systems, like the SureFlo™ range, tackle U-tubing effects and unstable flow; enhancing well performance. Key benefits include anti-U-tubing protection and dual back check systems, ensuring efficient chemical injection and reliable operation. Integrated design tools and software optimised performance, boosting efficiency and well reliability throughout the field life.
Side Pocket Mandrels Interwell’s Side Pocket Mandrels, including the NexLift™ Series, are designed for modern gas lift operations. Our mandrels improve well integrity, simplify valve handling and boost gas lift efficiency; reducing intervention needs.
Gas Lift Solutions Improve production efficiency and well integrity with Interwell’s gas lift solutions. Designed for challenging wells and environments, our gas lift technologies reduce operational interventions and support reliable performance. Gas Lift Valves (GLVs) handle scale, erosion and high pressures; helping to minimise downtime. Our retrofit systems provide an efficient alternative to recompletions, allowing upgrades while maintaining well integrity. Interwell’s approach supports long-term well performance.
Annular Sensor System Interwell’s Annular Sensor Systems monitor wellhead integrity with continuous pressure and temperature checks. They ensure safety under impact, reduce costs by eliminating traditional valves and provide both autonomous and manual pressure management. These systems enhance well safety and efficiency throughout the well lifecycle.
Surface Annular Systems Our Surface Annular Systems ensure wellhead integrity by addressing sustained annulus pressure (SAP) and enhancing barrier integrity. The Master Surface Annulus Safety Valve (MSAS™) and Hydraulic Surface Annulus Safety Valve (HSAS™) create independent barriers, meet regulatory standards and mitigate risks. These systems enhance safety, reduce lifecycle costs and improve operational reliability. Discover our portfolio of Surface Annular Systems below.
Annular Isolation Solutions Interwell’s Annular Isolation Solutions enhance well performance and extend field life. The CannSeal ZonalSeal uses patented epoxy technology to create precise annular seals in a single run, reducing water production. Compatible with standard electric wireline, it's ideal for vertical and horizontal wells, improving recovery and efficiently prolonging well life.

About Us

ESG

Wellhead Integrity

Well location

Casing Barrier Solutions

Leading the way in innovative barrier technology for casing applications. Our advanced solutions ensure the highest standards of safety, performance, and reliability for operational efficiency.

Applications

Barrier Verification Barrier verification enhances safety and compliance, reducing risks and costs over time. By implementing robust verification processes, we ensure ongoing regulatory adherence and foster a culture of continuous improvement within the industry.
Temporary P&A Interwell offers secure & efficient Temporary P&A solutions with advanced casing plugs, ensuring well integrity and compliance during well suspension and abandonment operations.
Well Testing (Pressure/Leak/Inflow Test) Detect leaks, perform pressure and inflow tests on casing, liner or BOPs with high operational efficiency and no left-hand rotation.

Well location

Completion

Applications

Flow Control We offer a wide range of products during and after the completion phase. Our flow control products are tested to highest level of industry standards and provide reduced time and HSE risks.
Interventionless Completion Installations Interwell enhances production and eliminates intervention needs during and after completion installations by providing remotely operated completion tools.
Production Optimisation Prevent water influx, increase oil and gas production and extend well lifespan. Isolate zones, retrofit gas lift and optimise revenue through tailored solutions.
Rigless Installation of VXT The Inter Remote Bypass Valve (IRBV) enhances efficiency in subsea operations with a vertical x-mas tree (VXT). It enables batch operations and reduces costs by minimising rig time and interventions, providing a remotely controlled, pressure-cycled barrier compliant with ISO standards.
Scale & Corrosion Management Enhance integrity, well uptime and ensure stable and continuous Chemical Injection (CI) by utilising Interwell’s unique barrier qualified CI solutions.
Temporary P&A Interwell offers secure & efficient Temporary P&A solutions with advanced casing plugs, ensuring well integrity and compliance during well suspension and abandonment operations.
Well Testing (Pressure/Leak/Inflow Test) Detect leaks, perform pressure and inflow tests on casing, liner or BOPs with high operational efficiency and no left-hand rotation.

Well location

Intervention

Applications

Annulus Isolation Isolate the annulus to prevent water influx, stop water production, and enhance oil and gas recovery, extending the life of your well.
Barrier Monitoring Log pressure and temperature below a barrier for real-time or long-term verification. Data can be monitored live or sent to the surface.
Completion Repair Repair old and new completions, including setting packers, leak testing and straddle operations. Achieve reduces costs, compared to a full new completion.
Production Optimisation Prevent water influx, increase oil and gas production and extend well lifespan. Isolate zones, retrofit gas lift and optimise revenue through tailored solutions.
Temporary P&A Interwell offers secure & efficient Temporary P&A solutions with advanced casing plugs, ensuring well integrity and compliance during well suspension and abandonment operations.
Well Integrity Re-establish well integrity, extend well lifespan and increase revenue. Efficient, cost-effective solutions compared to new completions.
Well Testing (Pressure/Leak/Inflow Test) Detect leaks, perform pressure and inflow tests on casing, liner or BOPs with high operational efficiency and no left-hand rotation.
Zonal Isolation Advanced zonal isolation solutions for complex well environments, designed to eliminate unwanted fluid migration, restore production integrity, and meet the most demanding regulatory requirements.
Water Shut-Off Excessive water production reduces efficiency, increases costs, and accelerates well decline. Interwell delivers tailored precision water shut-off solutions. Designed to address the root cause, not just the symptom.

Well location

Plug & Abandonment

Eliminate risk, prevent leaks and reduce environmental impact; securing your wells and safeguarding the future.

Applications

Barrier Verification Barrier verification enhances safety and compliance, reducing risks and costs over time. By implementing robust verification processes, we ensure ongoing regulatory adherence and foster a culture of continuous improvement within the industry.
Reservoir Barrier RockSolid™ Permanent Abandonment Barrier Technology.
Sustained Casing Pressure (SCP/SCVF) Eliminate sustained casing pressure with RockSolid™: a rigless, single-run solution that creates a permanent rock-to-rock barrier, restoring caprock integrity for eternity. Achieve more with less, ensuring unmatched well stability and performance.
Slot Recovery Ongoing rigless deployments with our proprietary, thermite-based solution deliver a targeted exothermic reaction removing all wellbore elements to reinstate caprock integrity in the well cross section; as nature intended and for eternity.
Temporary P&A Interwell offers secure & efficient Temporary P&A solutions with advanced casing plugs, ensuring well integrity and compliance during well suspension and abandonment operations.
Well Testing (Pressure/Leak/Inflow Test) Detect leaks, perform pressure and inflow tests on casing, liner or BOPs with high operational efficiency and no left-hand rotation.
Zonal Isolation Advanced zonal isolation solutions for complex well environments, designed to eliminate unwanted fluid migration, restore production integrity, and meet the most demanding regulatory requirements.

Well location

Renewables & Low Carbon

Applications

Annulus Pressure Management Interwell’s annulus pressure monitoring and management system provides a cost-effective and reliable system for continuous pressure and temperature monitoring, and pressure management applications.
Barrier Verification Barrier verification enhances safety and compliance, reducing risks and costs over time. By implementing robust verification processes, we ensure ongoing regulatory adherence and foster a culture of continuous improvement within the industry.
Barrier Monitoring Log pressure and temperature below a barrier for real-time or long-term verification. Data can be monitored live or sent to the surface.
Completion Repair Repair old and new completions, including setting packers, leak testing and straddle operations. Achieve reduces costs, compared to a full new completion.
Flow Control We offer a wide range of products during and after the completion phase. Our flow control products are tested to highest level of industry standards and provide reduced time and HSE risks.
Sustained Casing Pressure (SCP/SCVF) Eliminate sustained casing pressure with RockSolid™: a rigless, single-run solution that creates a permanent rock-to-rock barrier, restoring caprock integrity for eternity. Achieve more with less, ensuring unmatched well stability and performance.
Scale & Corrosion Management Enhance integrity, well uptime and ensure stable and continuous Chemical Injection (CI) by utilising Interwell’s unique barrier qualified CI solutions.
Temporary P&A Interwell offers secure & efficient Temporary P&A solutions with advanced casing plugs, ensuring well integrity and compliance during well suspension and abandonment operations.
Well Integrity Re-establish well integrity, extend well lifespan and increase revenue. Efficient, cost-effective solutions compared to new completions.
Zonal Isolation Advanced zonal isolation solutions for complex well environments, designed to eliminate unwanted fluid migration, restore production integrity, and meet the most demanding regulatory requirements.

Well location

Choose Product type

Plug & Abandonment RockSolid™ is a new alternative to slot recovery and permanent abandonment (P&A) of wellbores. The technology is based on thermite which melts all well elements and solidifies to reinstate caprock integrity.
Plugs & Packers We provide reliable wellbore isolation in demanding environments, from high-pressure operations to complex well geometries. Offering both retrievable and permanent options, they ensure secure sealing and anchoring for temporary or long-term needs. These solutions help minimise downtime, protect reservoirs and optimise well performance during interventions and workover operations.
Glass Barrier Plugs Explore our portfolio of Glass Barrier Plugs including the Inter Remote Bypass Valve (IRBV) and Inter Remote Shatter Valve (IRSV). These tools improve well performance and safety, reduce wireline interventions, ensure seamless completions and withstand extreme conditions; offering flexible and cost-effective solutions.
Straddle Solutions Interwell’s Straddle Solutions offer flexible tools for well intervention, including production control and safety valve retrofitting. The Anchored Production Straddle (APS) features a slim design for workover applications and gas-lift system retrofitting. The Insert Valve Carrier (IVC) repairs safety valve nipples cost-effectively, while the Injection Safety Valve (ISV) stabilises water injection. These solutions ensure optimal well performance and reduced costs.
Flow Control Interwell’s Flow Control Solutions boost well efficiency and integrity. The Injection Safety Valve (ISV) stabilises water injection and prevents inflow, reducing chattering with adjustable pressure and API 14A compliance. The Intelligent Barrier Valve (IBV) provides reliable, remote-controlled operation; reducing risks, costs and meets ISO 14310 V0 standards.
Setting Tools Setting tools are essential for installing downhole isolation devices and enhancing well interventions & completions. Interwell’s tools, like the Electronic Setting Tool (EST) and Hydraulic Running Tool (HRT), offer control, versatility and efficiency. They simplify operations, reduce risks and ensures cost-effective well management.
Data Acquisition Interwell's data acquisition technologies enable real-time wireless monitoring and control to ensure well integrity and efficiency. Delivering continuous downhole data, these systems simplify operations, reduce costs and enhance safety with easy deployment via slickline, electric line or coiled tubing. Our acoustic communication ensures secure data transmission without affecting barriers. With monitoring capabilities of up to 10 years, these tools are ideal for barrier verification, pressure logging and integrity management; supporting long-term well performance with fewer interventions.
Plug & Packer Add-Ons Interwell’s Plug & Packer Add-Ons enhance well integrity and streamline operations. They ensure secure well isolation, manage flow direction and handle high pressures while collecting debris. Advanced control features and reliable temporary barriers optimise well performance, reduce intervention needs and improve operational efficiency.
Chemical Injection Interwell’s Chemical Injection Systems, like the SureFlo™ range, tackle U-tubing effects and unstable flow; enhancing well performance. Key benefits include anti-U-tubing protection and dual back check systems, ensuring efficient chemical injection and reliable operation. Integrated design tools and software optimised performance, boosting efficiency and well reliability throughout the field life.
Side Pocket Mandrels Interwell’s Side Pocket Mandrels, including the NexLift™ Series, are designed for modern gas lift operations. Our mandrels improve well integrity, simplify valve handling and boost gas lift efficiency; reducing intervention needs.
Gas Lift Solutions Improve production efficiency and well integrity with Interwell’s gas lift solutions. Designed for challenging wells and environments, our gas lift technologies reduce operational interventions and support reliable performance. Gas Lift Valves (GLVs) handle scale, erosion and high pressures; helping to minimise downtime. Our retrofit systems provide an efficient alternative to recompletions, allowing upgrades while maintaining well integrity. Interwell’s approach supports long-term well performance.
Annular Sensor System Interwell’s Annular Sensor Systems monitor wellhead integrity with continuous pressure and temperature checks. They ensure safety under impact, reduce costs by eliminating traditional valves and provide both autonomous and manual pressure management. These systems enhance well safety and efficiency throughout the well lifecycle.
Surface Annular Systems Our Surface Annular Systems ensure wellhead integrity by addressing sustained annulus pressure (SAP) and enhancing barrier integrity. The Master Surface Annulus Safety Valve (MSAS™) and Hydraulic Surface Annulus Safety Valve (HSAS™) create independent barriers, meet regulatory standards and mitigate risks. These systems enhance safety, reduce lifecycle costs and improve operational reliability. Discover our portfolio of Surface Annular Systems below.
Annular Isolation Solutions Interwell’s Annular Isolation Solutions enhance well performance and extend field life. The CannSeal ZonalSeal uses patented epoxy technology to create precise annular seals in a single run, reducing water production. Compatible with standard electric wireline, it's ideal for vertical and horizontal wells, improving recovery and efficiently prolonging well life.

Interwell's MSAS and VR Sense Installed Offshore Denmark

A North Sea gas field faced subsidence, bringing wellheads closer to the sea and increasing wave impact risks. Interwell’s MSAS™ system was installed on the active wellhead side, providing a primary barrier against leaks, while the VR Sense™ on the passive side, allowed real-time annulus monitoring and established double-barrier protection.

Region

2024

Year

Challenge

The oil and gas field consisting of multiple platforms in the Danish sector of the North Sea has been a major natural gas provider for nearly 40 years. During years in production there has been a natural subsidence of over 5 meters in the seabed, resulting in the topside facilities sinking correspondingly towards the sea level. To revitalise production from the field, it was decided to replace old platforms with new modern ones, extending this air gap.

However, the Wellhead Deck where wellheads, gate valves and related equipment is located and accessed remains on the same level, closer to the sea. Due to improved wave calculation models available and to comply with the company’s two-barrier philosophy, the operator seeked to improve the wellhead barrier situation by reducing the outlet footprint to minimise bending moments caused by potential wave impacts and to provide continuous real-time monitoring of their annuli.

Solution

Solution Interwell’s Master Surface Annulus Safety (MSAS™) system was installed on the active (gas injection or bleed-off) side of the wellhead. The MSAS™ valve is installed in the threaded Valve Removal (VR) profile incorporated in the body of the wellhead while the Hydraulic Actuator (HAC) is connected to the MSAS™ valve and secured inside the single block gate valve body. The MSAS™ is a fail-safe closed system, which is operated by applying hydraulic pressure to open the system to initiate injection or bleed-off, and removal of pressure to close. The MSAS™ valve becomes the primary barrier towards uncontrolled annulus inventory release, and the gate valve the secondary barrier.

On the passive side of the wellhead, in addition to reducing the outlet footprint and providing a double barrier, the VR Sense™ was installed, providing continuous real-time monitoring of annulus pressure and temperature. The VR Sense™ system consists of a smart VR Plug with a pressure and temperature sensor in front of the plug, which is installed in the threaded VR Profile in the body of the wellhead as the primary barrier, and a testable flange assembly on the outside becoming the system’s secondary barrier.

MSAS™ independent barrier valve with electronic setting, securing annulus content in high-risk gas-lifted wells — L to R: MSAS & VR Sense.

Value Created

Wells equipped with MSAS and VR sense on active and passive side of outlets of the wellhead provides:

Effective annulus pressure and temperature management.
Significant improvements to the surface barrier integrity by moving the barrier envelope from the outlet gate valves on each side to form a part of the envelope of the wellhead body.
Reduced outlet footprint and thereby increased robustness against bending moments caused by wave impacts:
- On the active side of the wellhead; by fitting the MSAS inside VR profile and single block gate valve.
- On the passive side of the wellhead: by fitting the VR Sense inside the VR profile and flange assembly.
Mitigated risk for uncontrolled annular inventory release by utilising VR Profile equipment by:
- Reduced likelihood of leaks by reducing footprint (reduced surface area subject to potential impacts).
- Reducing leak time and potential by isolating annular inventory inside annulus if surface impact occurs.
Reduced servicing and testing of gate valves by reducing or replacing one or multiple valves on each side of the wellhead.
Mitigated risk of inaccurate pressure readings and leak paths by taking the data from within the wellhead using the VR Sense System, rather than passing the pressure through external gate valve flanges, intrument lines and pressure gauges.