发明名称 |
DOWNHOLE ROTATIONAL LOCK MECHANISM |
摘要 |
The subject matter of this specification can be embodied in, among other things, a method that includes a downhole rotational lock mechanism including a tubular housing having a longitudinal bore with an internal wall. A driving gear is disposed in the longitudinal bore of the tubular housing and has a peripheral edge secured to the internal wall of the longitudinal bore of the tubular housing. The driving gear has an upper portion including a plurality of gear teeth arranged around a central longitudinal bore through the driving gear. A driven gear is movably disposed in the longitudinal bore of the tubular housing, and has a central longitudinal bore and a lower portion including a plurality of gear teeth. An output drive shaft is disposed longitudinally in the longitudinal bore of the tubular housing and in the longitudinal bore of the driven gear. |
申请公布号 |
EP2923025(A4) |
申请公布日期 |
2016.07.27 |
申请号 |
EP20130875593 |
申请日期 |
2013.02.20 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
KHAPARDE, ASHISH PRAFULLA;THAKUR, DIPENDER RAVINDRA;SONAR, SANDIP SATISH |
分类号 |
E21B4/00;E21B4/02;E21B17/046 |
主分类号 |
E21B4/00 |
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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