| 发明名称 |
Kjerneuttakingsanordning for sidevegg og fremgangsmåte for å ta en kjerneprøve fra en sidevegg. |
| 摘要 |
<p>A coring bit, including an outer hollow coring shaft, and a rotationally uncoupled internal sleeve disposed inside the outer hollow coring shaft. The rotationally uncoupled internal sleeve may be a non-rotating internal sleeve. The rotationally uncoupled internal sleeve may be a free-floating internal sleeve.</p> |
| 申请公布号 |
NO336170(B1) |
申请公布日期 |
2015.06.08 |
| 申请号 |
NO20040000279 |
申请日期 |
2004.01.21 |
| 申请人 |
SCHLUMBERGER TECHNOLOGY B.V. |
发明人 |
HARRIGAN EDWARD;SUNDQUIST ROBART WAYNE;HILL BUNKER M;CONTRERAS GARY W;TRAN SONY;LAUPPE DEAN W;REID LENNOX E |
| 分类号 |
E21B10/02;E21B49/06 |
主分类号 |
E21B10/02 |
| 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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