发明名称 |
Wellhead completion system |
摘要 |
A well completion system utilizes a seal which carries its own load ring. The seal is lowered into the bore of a wellhead housing around a tubular member. The seal carries a split load ring, which once positioned will move outward into engagement with a groove formed in the wellhead housing. A locking assembly will lock the seal to the wellhead housing. The locking assembly has a casing lock ring which will secure to the upper end of a section of casing, if the casing has been cut due to an emergency stuck condition. A tubing hanger lands over the locking assembly. The tubing hanger is retained by an actuating ring and lock ring that are independent of the tubing hanger seal.
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申请公布号 |
US5327965(A) |
申请公布日期 |
1994.07.12 |
申请号 |
US19930041120 |
申请日期 |
1993.04.01 |
申请人 |
ABB VETCO GRAY INC. |
发明人 |
STEPHEN, GARRY R.;MARIETTA, DALE B.;BRAMMER, NORMAN;FRITSHE, CASIMIR J.;ECKERT, LAWRENCE A.;SHARP, ALLAN C. |
分类号 |
E21B33/00;E21B33/04;(IPC1-7):E21B33/04 |
主分类号 |
E21B33/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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