| 发明名称 |
METHOD AND APPARATUS FOR TESTING OFFSHORE WELLS |
| 摘要 |
Method and apparatus for testing offshore wells where a conduit string connected with a testing string is supported in a wellhead during testing operations and where a combination of gravity responsive means and extensible means effect operation of a testing valve.
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| 申请公布号 |
US3646995(A) |
申请公布日期 |
1972.03.07 |
| 申请号 |
USD3646995 |
申请日期 |
1969.12.08 |
| 申请人 |
HALLIBURTON CO. |
发明人 |
DEWEY K. MANES;DAVID L. FARLEY;GARY Q. WRAY |
| 分类号 |
C09D5/46;E21B33/129;E21B34/12;E21B49/00;E21B49/08;(IPC1-7):E21B47/06 |
主分类号 |
C09D5/46 |
| 代理机构 |
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代理人 |
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