Topside

Interwell’s topside wellhead 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.

  • 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.
Drilling

We offer a wide range of solutions for temporary suspension, pressure testing, inflow testing and monitoring for the drilling phase.

  • 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.
Completion

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

  • 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.
  • 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 providing the company a reduction of 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 Optimization Prevent water influx, increase oil and gas production, and extend well lifespan. Isolate zones, retrofit gas lift, and optimize 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 minimizing rig time and interventions, providing a remotely controlled, pressure-cycled barrier compliant with ISO standards.
  • Scale and Corrosion Management Enhance integrity, well uptime and ensure stable and continuous Chemical Injection (CI) by utilizing 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 cost savings compared to a full new completion.
  • Production Optimization Prevent water influx, increase oil and gas production, and extend well lifespan. Isolate zones, retrofit gas lift, and optimize 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.
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 solidify to reinstate caprock integrity.

  • 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 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.
New Energy

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 and 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 cost savings 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 providing the company a reduction of 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 and Corrosion Management Enhance integrity, well uptime and ensure stable and continuous Chemical Injection (CI) by utilizing 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 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.
  • P&A 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 solidify to reinstate caprock integrity.
  • Plugs and 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 minimize downtime, protect reservoirs, and optimize well performance during interventions and workover operations.
  • Completion Tools Explore our diverse portfolio of Completion Tools, including the Inter Remote Bypass Valve (IRBV) and Inter Remote Shatter Valve (IRSV), improve well performance and safety. These tools reduce wireline interventions, ensure seamless completions, and withstand extreme conditions, offering flexible, 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) stabilizes 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) stabilizes 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 and costs, and meets ISO 14310 V0 standards.
  • Setting tools Setting tools are essential for installing downhole isolation devices, enhancing well interventions and completions. Interwell’s tools, like the Electronic Setting Tool (EST) and Hydraulic Running Tool (HRT), offer control, versatility, and efficiency, simplifying operations, reducing risks, and ensuring 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 and Packer Add-ons Interwell’s Plug and 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 optimize 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 optimize 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. The NexLift SI and NexLift SI-B offer single-piece construction for enhanced strength and cost savings, while the NexLift RO features fewer welds to reduce failures. 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 minimize 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 (HSAS™) valve create independent barriers, meeting regulatory standards and mitigating 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 prolonging well life efficiently.
Topside

Interwell’s topside wellhead 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.

Well location
Drilling

We offer a wide range of solutions for temporary suspension, pressure testing, inflow testing and monitoring for the drilling phase.

Well location
Completion

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

Well location
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.

Well location
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 solidify to reinstate caprock integrity.

Well location
New Energy

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 and gas sector, we bring a unique perspective and a robust set of skills to the renewable energy landscape.

Well location
Choose Product type
  • P&A 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 solidify to reinstate caprock integrity.
  • Plugs and 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 minimize downtime, protect reservoirs, and optimize well performance during interventions and workover operations.
  • Completion Tools Explore our diverse portfolio of Completion Tools, including the Inter Remote Bypass Valve (IRBV) and Inter Remote Shatter Valve (IRSV), improve well performance and safety. These tools reduce wireline interventions, ensure seamless completions, and withstand extreme conditions, offering flexible, 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) stabilizes 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) stabilizes 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 and costs, and meets ISO 14310 V0 standards.
  • Setting tools Setting tools are essential for installing downhole isolation devices, enhancing well interventions and completions. Interwell’s tools, like the Electronic Setting Tool (EST) and Hydraulic Running Tool (HRT), offer control, versatility, and efficiency, simplifying operations, reducing risks, and ensuring 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 and Packer Add-ons Interwell’s Plug and 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 optimize 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 optimize 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. The NexLift SI and NexLift SI-B offer single-piece construction for enhanced strength and cost savings, while the NexLift RO features fewer welds to reduce failures. 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 minimize 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 (HSAS™) valve create independent barriers, meeting regulatory standards and mitigating 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 prolonging well life efficiently.
MSAS B

MSAS

Enhanced protection against uncontrolled annular release inclusive dropped objects

Surface Annular Systems Annulus Pressure Management

This product can be used in:

Completion symbol Completion Topside symbol Topside New Energy symbol New Energy

The product

The Master Surface Annulus Safety Valve (MSAS)

MSAS™ fail-safe close barrier valve is the only integrity-valve solution that delivers independent double barrier integrity at wellhead side outlets. The MSAS™ mitigates the risk of uncontrolled release of annular content from leaks or accidents, including dropped objects. The product family has an excellent track record since its introduction in 2008. 

Technology

Gas lifted, gas vented or wells with sustained annulus pressure pose a considerable risk to personnel and facilities. In these applications annulus gate valves and ring gaskets are the primary well barrier. Gate valves provide only a single barrier, which can be breached upon impact or collision.

The MSAS™ provides an additional independent barrier in the wellhead VR profile. The MSAS™ is hydraulically operated and connected to electronic setting device. Should an impact or collision take place, the API 6FD/FB fire tested barrier valve locked in the VR profile will close and remain within the wellehad, thus securing the pressurized annular volume. 

The MSAS™ system can be integrated in an API gate valve (MSAS-G™) and has a smaller footprint as the valve actuator is installed within the gate valve bore. 

Features & Benefits

  • Based on API 6A
  • Fire tested to API 6FD & 6FB
  • BI-directional flow
  • For gas injection and annulus venting applications
  • Fail safe close barrier valve
  • Independent barrier
  • NORSOK D-010 compliant
  • Enhances well integrity
  • Can be used to substitute the annular safety valve or downhole gas vent valve, or similar down hole barrier
  • Eliminates the need for an ESD gate valve
  • Easy installation and service, even in live wells
  • No piping midification required

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Adaptability

Application Areas

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.

Explore Annulus Pressure Management

Related Products

Surface Annular Systems

A-Pro

  • Remote & Continous Real-Time Monitoring
  • Independant testable well barriers (MSAS & VR Sensor)
  • Enhanced well integrity and well uptime, and reduced HSE risks
Application area
Annulus Pressure Management
Annular Sensor System

VR Sense-R

  • Double barrier at wellhead outlets
  • Continous annulus P&T monitoring
  • Replaceable VRPT on live wells
Application area
Annulus Pressure Management
Annular Sensor System

VR Sense

  • Double barrier at wellhead outlets
  • Continous annulus P&T monitoring
  • Dropped object protection
Application area
Annulus Pressure Management
Surface Annular Systems

VR-Tool

  • Fully enclosed pressure envelope
  • Telecopic pistons
  • Light weighted
Application area
Annulus Pressure Management
Surface Annular Systems

HSAS

  • Double barrier at wellhead outlets
  • Fail safe closed mechanism (ESD)
  • Bi-directional flow- and test capabilites
Application area
Annulus Pressure Management
Plug and Packer Add-ons

Intelligent Barrier Valve

  • The IBV is a downhole barrier valve designes to complement a plugging device
  • Maintained barrier qualification after multiple open close cycles in mud
  • Extensive batterie life, ideal for time and cost savings in workovers.
Application area
Annulus Pressure Management Annulus Isolation Completion Repair Temporary P&A +3

Case studies