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50Casing and tubing hanger S seal for wellheads
The ID S seal is used for wellheads, downhole tools and surface pressure control equipment as a critical part.
Its sealing materials need to withstand pressures as high as 15 000 psi and temperatures of 210º, depending on housing design and material choice.
From design through to production, JST S-seals are made to perform in the toughest situations, especially for high pressure and H2S chemicals. It is designed to withstand higher pressures and temperatures while meeting more stringent regulatory requirements. The pressure between casing layers may exceed 10000 psi, which means that the seal must be manufactured and tested to very high standards. Tubing and casing diameters can also vary widely, and the wellhead seal must be able to compensate for these changes.
Our ID S seal is available in material NBR, HNBR, FKM with 2 integral anti-extrusion springs. The integrated spiral spring in the S seal ensures high pressure resilience, excellent resistance to rolling and bunching, and simple fitting.
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Advantages: 1. Designed as an engineered replacement for T Seals and O-Rings 2. used in static services. 3. One piece design for easier installation into glands. 4. Material is certified with Norsok M710 H2S immertion test. 5. Rapid gas decompression resistance |
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Working Conditions |
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Temperature range |
Pressure |
Medium |
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LU, PU, SX |
≤20000 PSI |
Oil, water, Gas, H2S, CO2 etc |
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Categories
Wellhead secondary pack off seal is used to seal the hanger to the wellhead.
T-seals are three piece seals with an elastomeric lip and hard plastic anti-extrusion rings, it is proved to be of long time service. The standard design will fit into an o-ring gland and can be machined or net moulded.
Lockdown screw seal is used mainly in geothermal applications, HNBR packing with stainless steel caps provide superior performance over metal pressure seals.
JST's metal end cap seal is elastomer bonded onto 2 steel caps. This provides high level of extrusion resistance.
Pack off seal or Secondary Seal Assemblies is installed in the lower seal area of the Casing Spool or Tubing Head.
P seal is constructed from an elastomer with back up rings for anti-extrusion. Energized by the injection of sealant, it is a static seal that is used to seal rough casing and tubing. Backup rings are available in Mesh Stainless Steel or Solid Carbon Steel.
The FS-seal is a relatively large cross section spring energized elastomer casing and tubing hanger seal for wellheads that always has the springs on the internal surface.
BT Seal is a static seal that is used to seal rough casing and tubing. It is constructed from an elastomer with anti-extrusion spring bonded within it. Springs are available in stainless steel, elastomer could be HNBR or NBR.
For inquiries about our products or pricelist, please leave to us and we will be in touch within 24 hours.
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