Wellhead Integrity

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.
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.
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.
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.
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.
Wellhead Integrity

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

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.

Well location
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.

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

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

Well location
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.

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.
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Epoxy Injection in Gravel-Pack to Shut Off Water Producing Zones & Extend Production Lifetime

A Norwegian operator faced excessive water production in a subsea gas well due to issues in lower zones. Using CannSeal Annulus epoxy plug and a tubing ME plug, water was successfully shut off, enhancing well recovery.

NCS

Region

2022

Year

99%

Reduction of Water

Challenge

A Norwegian operator had a subsea gas producer with significant water production suspected to come from the lower producing zones. The water production rate was above expected levels leading to a declining pressure that could potentially result in a risk of not being able to re-start the well if the production of water was not reduced.  

Some of the screens had water tracers installed but due to misplacement of the screens during completion the tally was off and therefore determining the exact location of the water production could be difficult.  

The horizontal reservoir section was completed with 5,5” screens and a gravel packed annulus making it necessary to shut of water on the inside as well as the outside of the screens. 

Solution

The solution was to set a CannSeal annulus epoxy plug in conjunction with an ME plug installed inside the tubing to effectively fulfill the objective of completely sealing off the lower zones.  

Due to a reported 100% gravel pack in the annulus only one sealant injection at plug depth was deemed necessary. A standard ME retrievable bridge plug (RBP) plug was planned for setting at same depth of the epoxy plug.  

Prior to the CannSeal water shutoff treatment a third-party PLT run with a caliper was performed with the aim of establishing where the liquid level was, origin of water production, potential presence of crossflow, as well as the integrity of the tubing wall for the CannSeal tool injection arms and sealing O-rings. This run showed no obstacles for the CannSeal operation, and it also concluded with the exact target depth for injection of the high viscous epoxy. The injection was performed in a long blank pipe between two screen sections.  

Value Created

Together, the epoxy annulus injection and the tubing ME plug successfully shut off the water produced from the lower zones and drastically enhanced well recovery. The latest report from the operator states that the well is now producing as normal with a 99% reduction of water and the gas production rate at levels seen before the breakthrough. 

Key Capabilities

  • Rig-less water shutoff intervention
  • Ultra-high viscosity epoxy designed for self-bearing properties in horizontal wells
  • Instant measurable results post injection
  • Two competent plugs established, each by a single injection strategy

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CS Epoxy Injection in Gravel Pack to Shut Off Water Producing Zones Extend Production Lifetime

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