| 发明名称 |
RETRIEVABLE PLUG FOR OFFSHORE PLATFORMS HAVING SHEAR TYPE RETAINING MEANS |
| 摘要 |
<p>A reusable plug for sealing the conductor pipe of offshore platforms comprising a cylilldrical housing, central body member, pressure equalization means and retractable release means releasably securing the central body member to the cylindrical housing.</p> |
| 申请公布号 |
CA1100865(A) |
申请公布日期 |
1981.05.12 |
| 申请号 |
CA19790319483 |
申请日期 |
1979.01.11 |
| 申请人 |
HALLIBURTON COMPANY |
发明人 |
STREICH, STEVEN G.;KNOX, LLOYD C.;SULLAWAY, BOBBY L. |
| 分类号 |
E02B17/00;E21B33/12;(IPC1-7):16L55/10 |
主分类号 |
E02B17/00 |
| 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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