Wellhead sealing assembly
This patent describes a sealing assembly for sealing across a wellhead annulus between an outer member forming an outer concave annulus surface and an inner member forming an inner convex annulus surface and having an upwardly facing surface comprising: an annular body, a sealing ring secured to the body and having inwardly extending sealing lips for sealing against the inner convex annulus surface and an upstanding rim having an outer diameter to be in close spaced relationship to the outer concave annulus surface, locking segments supported by the body and being movable radially outward into locking engagement with the outer concave annulus surface, loading segments supported by the body and being movable radially outward into loading engagement with the interior of the upstanding rim of the sealing ring, and means positioned within the body for moving the locking segments and the loading segments radially outward to lock the body at its position with the annulus and to force the upstanding rim outward into sealing engagement with the outer concave annulus surface.
- Assignee:
- Cameron Iron Works USA, Inc., Houston, TX
- Patent Number(s):
- US 4784222
- OSTI ID:
- 6775450
- Resource Relation:
- Patent File Date: Filed date 17 Sep 1987
- Country of Publication:
- United States
- Language:
- English
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