CUSTOM-ENGINEERED, SPRING-ENERGIZED ELASTOMER SEALS FOR OIL & GAS APPLICATIONS
Trelleborg Sealing Solutions announces the launch of the new XploR S-Seal and XploR FS-Seal that have been developed for demanding high pressure sealing environments, such as those found in oil and gas downhole tool applications. Combining the benefits of integral support components with the flexibility of an elastomer seal, the XploR™ S-Seal and XploR™ FS-Seal offer maximum extrusion resistance in demanding high pressure sealing environments.
Commonly known as spring seals, the XploR™ S-Seal and XploR™ FS-Seal from Trelleborg Sealing Solutions are customengineered, spring-energized elastomer seals. They combine the benefits of integral support components with the flexibility of an elastomer seal, offering maximum extrusion resistance in demanding high pressure sealing environments, such as those found within oilfield casing and tubing applications.
In the XploR™ S-Seal and XploR™ FS-Seal, sealing is achieved by controlled deformation of the elastomer element. Optimal stress distribution throughout the elastomer body is modelled through Finite Element Analysis (FEA) to ensure high performance sealing coupled with long seal life. Extrusion resistance is provided by the specially designed integral steel springs that provide support to the rubber, yet are flexible to allow straightforward installation.
The seals are manufactured in the Trelleborg Sealing Solutions range of XploR™ Rapid Gas Decompression (RGD) and sour gas resistant elastomers, together with corrosionresistant steel springs. This allows custom sealing solutions to be engineered to suit specific oil field conditions, including the requirements of high temperature, high pressure (HTHP) environments.
Features and benefits
• Single piece bidirectional seal for high pressure applications
• Integrally molded helical springs provide a high level of extrusion resistance in a single piece, compact sealing element
• Flexibility given by the springs allows installation in closed grooves
• Elastomer sealing element provides leak tightness against sub-optimal tubing surface finishes
• Custom-engineered to fit existing tube sizes
• Materials certified to NORSOK, API and Total standards for demanding downhole environments
• Withstand pressures up to 103.4 MPa / 15,000 psi
• Temperature resistance up to +177 °C / +350 °F
Applications
High pressure wellhead sealing environments such as casing strings and tubing hangers
Finite Element Analysis of XploR™ S-Seal installed in hardware
Finite Element Analysis of XploR™ S-Seal operating at 177 °C under 103 MPa / 350 °F under 15,000psi
Finite Element Analysis of XploR™ FS-Seal installed in hardware
Finite Element Analysis of XploR™ FS-Seal operating at 177 °C under 103 MPa / 350 °F under 15,000psi
TECHNICAL INFORMATION FOR XPLOR™ S-SEAL AND XPLOR™ FS-SEAL
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