Wells – Processes – Assembling well part
Patent
1991-03-15
1992-04-14
Britts, Ramon S.
Wells
Processes
Assembling well part
166 82, 2771675, 277236, 2853342, E21B 3303, F16J 1508
Patent
active
051039150
ABSTRACT:
A seal assembly for a wellhead housing and wellhead connector will seal even if the primary sealing surface becomes damaged. The wellhead connector and the wellhead housing each have primary sealing surfaces. A seal ring with upper and lower conical surfaces will seal against the surfaces of the wellhead connector and the wellhead housing. The wellhead housing also has a secondary sealing surface that extends down from the primary sealing surface. In the event that the primary sealing surface becomes damaged, a seal is utilized that has a support section and a lower seal surface. The support section does not sealingly contact the damaged primary seal surface on the wellhead housing. The lower seal surface engages the secondary seal surface of the wellhead housing to perform sealing.
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Schnakenburg Karl
Sweeney Thomas F.
ABB Vetco Gray Inc.
Bradley James E.
Britts Ramon S.
Tsay Frank
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