Pressure Activated Sealants for Repairing Well Leaks

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3 Followers
Deployed by 11 companies

Rigless Repairs of SCSSV / DHSV, Wellheads, Threaded Connections, Packers, Subsea Control and Wellhead Systems

Page last modified
April 11 2024

Seal-Tite have successfully repaired over 1000 subsurface safety valve systems in both subsea and on dry tree applications. Wellheads seals such as casing and tubing hangers have been repaired over 1500 times. 

Pressure activated sealants only polymerise at the leak site on differential pressure forming a flexible solid repair. The remainder of the sealant is the system remains liquid. This means the SCSSV system can use the unpolymerised sealant as part of the hydraulic control system and wellhead systems can be pressure tested after the repair.  

Applicable in Subsea and Dry Tree environments

Pros & Limitations
1
Early Resumption of Production
1
Significantly More Cost Effective than Mechanical Repair
1
Suitable for Subsea as well as Dry Tree Environments
1
SCSSV can be operated as normal after a repair
1
Repaired Wellhead voids can be tested after the repair
1
Rigless
1
Long Term Repair
0
Not a LCM solution
0
Limited Application in Corrosion Leaks - e.g. break through in
Specification
Specification Title Specification Description
Pressure rating of repair
Up to 22000psi
Temperature
Up to 500F / 260C
Longevity Of Repair
Up To Life Of Field

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Technology Readiness Level

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[9/9]

Development Technology demonstration Mature / Proven
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Seal-Tite use pressure activated sealants to repair leaks in oilfield equipment without the need for a rig or mechanical intervention.

The company was formed over 25 years ago and has documented thousands of repairs in equipment such as SCSSV control line, tubing and casing hangers, casing threads, subsea pipelines, pig launcher ball valves, subsea valve actuator, packers, production wing valves in all the major oil basins of the world.

Pressure activated sealants only polymerise at the leak site on differential pressure forming a flexible solid repair. The remainder of the sealant is the system remains liquid.

Contact: +44 (0)1224 773838
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