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US 12,590,635 B2Granted
Metal end cap seal
AssigneeSchlumberger Technology Corporation
InventorsThomas Evrard, Steve Wattelle, Richard Windslow
Life of this patent
Estimating the term…
Abstract
A metal end cap seal including metal end caps bonded to a central elastomer component is provided. In one embodiment, a metal end cap seal includes two metal end caps and a central elastomer component. The central elastomer component can be bonded to the metal end caps. The elastomer can include FFKM. Additional systems, devices, and methods are also disclosed.
Claims19
A metal end cap seal comprising:
- two metal end caps, each metal end cap including:
- an inner arm forming a portion of an inner surface of the metal end cap seal;
- an outer arm forming a portion of an outer surface of the metal end cap seal;
- a base connecting the inner arm to the outer arm;
- a first bend having a first radius of curvature from the base to the outer arm;
- a second bend having a second radius of curvature from the base to the inner arm;
- and
- a radial width measured from the inner surface at the inner arm to the outer surface at the outer arm;
- and
- a central elastomer component bonded to the metal end caps, wherein the central elastomer component comprises FFKM;
- wherein the first and second radii of curvature of each metal end cap are configured to hinder debonding of the central elastomer component from the metal end caps during use, each of the first and second radii of curvature determined by a ratio of the radial width to the corresponding first or second radius of curvature being no more than five-to-one.
8 more elements
A metal end cap seal comprising:
- an annular elastomer body comprising FFKM;
- and
- two annular metal end caps bonded to opposite axial ends of the annular elastomer body, wherein each of the two metal end caps includes an inner arm forming a portion of an inner surface of the metal end cap seal, an outer arm forming a portion of an outer surface of the metal end cap seal, a base connecting the inner arm to the outer arm, a first bend having a first radius of curvature from the base to the outer arm, a second bend having a second radius of curvature from the base to the inner arm, and a radial width measured from the inner surface at the inner arm to the outer surface at the outer arm, and wherein the inner arm and the outer arm are parallel to one another when the metal end cap seal is in a relaxed state;
- wherein the first and second radii of curvature of each metal end cap are configured to hinder debonding of the elastomer from the metal end caps during use, each of the first and second radii of curvature being determined by a ratio of the radial width to the corresponding first or second radius of curvature being no more than four-to-one.
1 more element
A method comprising:
- providing a metal end cap seal including an annular elastomer body, the annular elastomer body comprising FFKM, and two annular metal end caps bonded to opposite axial ends of the annular elastomer body, wherein each of the two metal end caps includes an inner arm forming a portion of an inner surface of the metal end cap seal, an outer arm forming a portion of an outer surface of the metal end cap seal, a base connecting the inner arm to the outer arm, a first bend having a first radius of curvature from the base to the outer arm, a second bend having a second radius of curvature from the base to the inner arm, and a radial width measured from the inner surface at the inner arm to the outer surface at the outer arm, and wherein the inner arm and the outer arm are parallel to one another when the metal end cap seal is in a relaxed state;
- wherein the first and second radii of curvature of each metal end cap are configured to hinder debonding of the elastomer from the metal end caps during use, each of the first and second radii of curvature being determined by a ratio of the radial width to the corresponding first or second radius of curvature being no more than four-to-one;
- and
- installing the metal end cap seal into an annular space between an inner oilfield component and an outer oilfield component.
1 more element
Dependencies are inferred from the claim text.