发明名称 |
Directional Drilling Control |
摘要 |
Methods and apparatus for using a quill to steer a hydraulic motor when elongating a wellbore in a direction having a horizontal component, wherein the quill and the hydraulic motor are coupled to opposing ends of a drill string, by monitoring an actual toolface orientation of a tool driven by the hydraulic motor via monitoring a drilling operation parameter indicative of a difference between the actual toolface orientation and a desired toolface orientation, and then adjusting a position of the quill by an amount that is dependent upon the monitored drilling operation parameter.
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申请公布号 |
US2009078462(A1) |
申请公布日期 |
2009.03.26 |
申请号 |
US20070859378 |
申请日期 |
2007.09.21 |
申请人 |
NABORS GLOBAL HOLDINGS LTD. |
发明人 |
BOONE SCOTT;ELLIS BRIAN;KUTTEL BEAT;SCARBOROUGH TOMMY |
分类号 |
E21B7/06;E21B7/08;E21B44/00 |
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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