发明名称 |
Blast joint swivel for wellhead isolation tool and method of using same |
摘要 |
A blast joint swivel for use in a wellhead isolation tool includes a blast joint hanger mounted to a top of the wellhead isolation tool and a swivel body rotatably received in the blast joint hanger. The swivel body threadedly connects to a blast joint, which in turn threadedly connects to a top end of a tubing string suspended in a well. The blast joint swivel can also be displaced vertically over a limited range between upper and lower abutments.
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申请公布号 |
US7278490(B2) |
申请公布日期 |
2007.10.09 |
申请号 |
US20040025453 |
申请日期 |
2004.12.28 |
申请人 |
STINGER WELLHEAD PROTECTION, INC. |
发明人 |
MCGUIRE BOB;DALLAS L. MURRAY |
分类号 |
E21B19/16;E21B33/04 |
主分类号 |
E21B19/16 |
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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