发明名称 |
Motor Driven Hybrid Rotary Steerable System |
摘要 |
Abstract of Disclosure A bottom hole assembly is rotatably adapted for drilling directional boreholes into an earthen formation. It has an upper stabilizer mounted to a collar, and a rotary steerable system. The rotary steerable system has integral drilling motor, an upper section connected to the collar, a steering section, and a drill bit arranged for drilling the borehole attached to the steering section. The steering section is joined at a swivel with the upper section. The steering section is actively tilted about the swivel. A lower stabilizer is mounted upon one of the upper section or the steering section such that the swivel is intermediate the drill bit and the lower stabilizer.
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申请公布号 |
US2003127252(A1) |
申请公布日期 |
2003.07.10 |
申请号 |
US20020248054 |
申请日期 |
2002.12.13 |
申请人 |
DOWNTON GEOFF;HART STEVEN JAMES;ROWATT JOHN DAVID |
发明人 |
DOWNTON GEOFF;HART STEVEN JAMES;ROWATT JOHN DAVID |
分类号 |
E21B7/06;E21B7/08;(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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