Patent ID: 8312922
Filing Date: 2012-11-20
Classification: E21B

Abstract:
1. A wellhead assembly with an axis, comprising: an outer wellhead member having a bore; an inner wellhead member adapted to be located in the bore; opposing seal surfaces in the bore and on an exterior portion of the inner wellhead member; a set of wickers formed in at least one of the seal surfaces and a smooth cylindrical surface adjoining the set of wickers; a seal ring between the inner and outer wellhead members having inner and outer walls separated by a generally cylindrical slot, an inlay band of a deformable material on one of the walls; and an energizing ring generally cylindrical in shape with surfaces that slidingly engage the inner and outer walls in the slot of the seal ring during installation to push the inner and outer walls into sealing engagement with the inner and outer wellhead members; whereupon one of the walls on the seal ring embeds into the set of wickers and the inlay band deforms against the smooth cylindrical surface adjoining the set of wickers.