Patent ID: 8167312

Claim:
A tubular assembly between a platform and a subsea wellhead, the tubular assembly comprising: an adjustable casing sub coupled between the subsea wellhead and the platform, the adjustable casing sub comprising, an outer housing, an inner housing selectively insertable within the outer housing and having a transition that defines a change in length of an outer radius of the inner housing, an annulus formed between the inner and outer housings, at least one of the housings have a seal surface in the annulus; a seal that moves from an initial position to a sealing position in the annulus adjacent the seal surface, the seal having an outer circumference with a metal face and an inner surface with cantilevered members; and a seal energizing system contained within the adjustable casing sub, so that when the seal is urged to the sealing position to where the outer radius of the inner housing is increased by the seal energizing system, the metal face is urged radially outward into sealing contact with an inner surface of the outer housing by contact of the cantilevered members with the outer radius of the inner housing.