| 发明名称 |
Method of landing items at a well location |
| 摘要 |
A method of lowering items from a drilling rig to a well located below it through the use of a landing string comprised of drill pipe having an enlarged diameter section with a shoulder, in combination with upper and lower holders having wedge members with shoulders that engage and support the drill pipe at the shoulder of the enlarged diameter section.
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| 申请公布号 |
US6378614(B1) |
申请公布日期 |
2002.04.30 |
| 申请号 |
US20000586239 |
申请日期 |
2000.06.02 |
| 申请人 |
OIL & GAS RENTAL SERVICES, INC. |
发明人 |
ADAMS BURT A.;SHAFER WILLIAM C.;HENRY NORMAN A. |
| 分类号 |
E21B19/00;E21B19/07;E21B19/16;E21B33/035;E21B33/043;(IPC1-7):E21B19/06;E21B19/18 |
主分类号 |
E21B19/00 |
| 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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