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.
  • 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.
  • Interventionless Completion Installations Interwell enhances production and eliminates intervention needs during and after completion installations by providing remotely operated completion tools.
  • 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.
  • 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.
  • 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.
  • 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.
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.


  • 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.
  • Annulus Isolation Isolate the annulus to prevent water influx, stop water production, and enhance oil and gas recovery, extending the life of your well.
  • Completion Repair Repair old and new completions, including setting packers, leak testing, and straddle operations. Achieve cost savings compared to a full new completion.
  • 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.
  • 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.
  • 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.


  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
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.
  • Completion Repair Repair old and new completions, including setting packers, leak testing, and straddle operations. Achieve cost savings compared to a full new completion.
  • 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.
  • 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.
  • 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.
  • 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.
  • Well integrity Re-establish well integrity, extend well lifespan, and increase revenue. Efficient, cost-effective solutions compared to new completions.
  • 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.
  • 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.
  • 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.
  • 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.


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.


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.


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.


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.


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.
IN rocksolid lava

Multi Product Application Delivers Reliabilities and Efficiencies to Subsea P&A Campaign

A subsea P&A campaign in Australia's North West Shelf required dual V0 barriers with tight ID restrictions and high temperatures. Interwell provided a solution using its MSP system and HPHT plugs to remove the Crown Plugs, set suspension plugs, and verify barrier integrity per NORSOK guidelines. The plugs were retrieved efficiently, with the MSP allowing heavy-duty pulling if needed. The operation was completed successfully with real-time monitoring, ensuring well integrity and meeting the client’s objectives.

APAC

Region

2021

Year

200,000lbs

Handles 200,000lbs force retrieval

Challenge

A 2 x Well Subsea P&A campaign for an operator in the North West Shelf of Western Australia required dual V0 barriers whilst topside equipment was removed. To negate having to remove these barriers during the P&A stage they could set below the Production Packer which had relatively tight ID restrictions and high temperature. As per NORSOK guidelines, a barrier is required to be tested in direction of flow. Prior to installation the Crown Plug (CP) and current suspension barriers had to be removed after being installed 
for 9 years.

Solution

To counter any potential issues whilst retrieving the CPs Interwell’s MSP was identified as it would allow up to 200,000lbs of force to be applied to the Plug. The system consists of 2 x V0 dual flapper valves for Well Control and has the means to reinstall the CP immediately after un-setting if required. This system has been run in the North Sea over 400 times.

The current suspension plugs (Interwell’s HPHT), which had been installed for 9 years and evaluated on previous long term suspension operations was deemed to be suitable for standard retrieval on Slickline. 

2 x 7” THEX Plugs qualified above and beyond the well envelope regarding pressure and temperature, as well as being qualified to ISO 14310 V0 were identified as required equipment for this suspension. As these would be set relatively close together, being set in the tailpipe below the Packer, an Interwell BVS wireless gauge system was used with an Interwell SP-EST. This suppled live surface readout on E-line to confirm the integrity of the upper barrier and to test the lower THEX in the direction of flow as per NORSOK 
D-10 guidelines. Fluid compatibility for the Well kill fluids was evaluated and deemed to be suitable for all equipment during the planning stage.

L to R: THEX & MSP

 

Key Capabilities

  • MSP Tool Pipe deployed CP recovery system to allow max pulling capability
  • HPHT plug for long-term integrity and reliable retrieval
  • THEX Vo Plugs for dual deep-set barrier
  • BVS Live system to confirm installed barrier, its integrity and allow test in direction flow
  • Surface powered EST for real-time setting log data for verification purposes

Value Created

The use of the MSP system in both wells allowed the 2 x CP’s to be retrieved safely on the first attempts, with the provision for heavy-duty pulling or circulation if required. This operation was simple, and consistent with other similar sequences relating to Pipe deployed/retrieved XT or Tubing Hanger assemblies utilising standard BOP control which operators are comfortable with.

Both 7” HPHT Plugs were un-set using standard retrieval/jarring procedures and retrieved to surface with no overpull or drag, despite being installed long term. The Plugs were equalised first to ensure pressure was balanced before un-setting the element and anchor slips, confirming their integrity over the installed period. On recovery, all mechanical sections of the Plugs had functioned as designed, some blisters bubbling within the Element was noted which indicated Gas cap present below.

The deep-set T-HEX Plugs permitted easy passing through the Well restrictions which allowed plugs to be set below the Production Packer, providing an ISO barrier tested to the required pressure at the relatively high temperature. The BVS not only allowed both Plugs to be set close together to verify integrity but by leaving a positive pressure above the lower Plug before setting the upper THEX, then bleeding off pressure above, allowed the lower barrier to be tested and monitored in the direction of flow on live E-Line readout at surface, giving the customer instantaneous verification. The customer was then able to confirm success and complete well objectives.

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