| 发明名称 |
Fitting for controlled trajectory drilling, comprising a variable angle elbow element and use of this fitting |
| 摘要 |
A fitting for controlled trajectory drilling. This fitting comprises a downhole motor, a drilling tool, at least one stabilizer and a remote controlled variable angle elbow element.
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| 申请公布号 |
US5273123(A) |
申请公布日期 |
1993.12.28 |
| 申请号 |
US19890459285 |
申请日期 |
1989.12.29 |
| 申请人 |
INSTITUT FRANCAIS DU PETROLE |
发明人 |
BARDIN, CHRISTIAN;BOULET, JEAN;MORIN, PIERRE |
| 分类号 |
E21B7/06;E21B7/08;E21B17/10;(IPC1-7):E21B7/08 |
主分类号 |
E21B7/06 |
| 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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