公开(公告)号：US5103915A

公开(公告)日：1992-04-14

申请号：US670130

申请日：1991-03-15

申请人： Thomas F. Sweeney ,  Karl Schnakenburg

发明人： Thomas F. Sweeney ,  Karl Schnakenburg

IPC分类号： E21B33/00 ,  E21B33/03 ,  F16L23/20

CPC分类号： E21B33/03 ,  F16L23/20 ,  E21B2033/005

摘要： 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.

摘要翻译： 即使主密封面损坏，用于井口外壳和井口连接器的密封组件也将密封。 井口连接器和井口壳体均具有主密封面。 具有上和下锥形表面的密封环将密封在井口连接器和井口壳体的表面上。 井口壳体还具有从主密封表面向下延伸的次级密封表面。 在主密封表面损坏的情况下，使用具有支撑部分和下部密封表面的密封件。 支撑部分不密封地接触井口壳体上损坏的主密封表面。 下密封表面接合井口壳体的次级密封表面以进行密封。