Seal for riser assembly telescoping joint
AssigneeCooper Cameron Corporation
InventorDavid L. Gilmore
Life of this patent
Estimating the term…
Abstract
A new seal system for a marine riser telescoping joint is revealed. The sealing face of the seal has tapered upper and/or lower tapered surfaces. The upper and/or lower ends can have a taper of about 1-15 degrees or alternatively the surrounding housing can have the taper with the seal ends either straight cut or tapered so that the combined tapers are in the stated range. The sealing elements are preferably nitrile or polyurethane and preferably without inserts. The upper and/or lower ends of the seal can have projections or depressions to aid in end sealing and eliminate the need for end seal rings. The new seals can be used individually or in stacks in a single housing.
Claims20
A seal assembly for a telescoping joint, comprising:
- a first and second nested tubular members slidably mounted with respect to each other and defining an annular space therebetween;
- at least one seal, supported by one of said tubular members and sealingly spanning said annular space, said seal having a longitudinal axis and opposed ends and being compressed, upon assembly to said tubular member retaining it, in a direction substantially aligned with its longitudinal axis.
A seal assembly for a telescoping joint, comprising:
- a first and second nested tubular members slidably mounted with respect to each other and defining an annular space therebetween;
- at least one seal, supported by one of said tubular members and sealingly spanning said annular space, said seal having a longitudinal axis and opposed ends and said seal is retained to said tubular member on at least one end by a projection-depression configuration between an end of said seal and an adjacent tubular member retaining it.
A seal assembly for a telescoping joint, comprising:
- a first and second nested tubular members slidably mounted with respect to each other and defining an annular space therebetween;
- at least one seal, supported by one of said tubular members and sealingly spanning said annular space, said seal having a longitudinal axis and opposed ends and said seal further comprises a sealing surface having an upper and a lower end and where at least one of said ends is beveled with respect to said longitudinal axis.
Dependencies are inferred from the claim text.