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 |
US2014231144(A1) |
申请公布日期 |
2014.08.21 |
申请号 |
US201314236200 |
申请日期 |
2013.02.20 |
申请人 |
Halliburton Energy Services, Inc. |
发明人 |
Sonar Sandip Satish;Khaparde Ashish Prafulla;Thakur Dipender Ravindra |
分类号 |
E21B4/00 |
主分类号 |
E21B4/00 |
代理机构 |
|
代理人 |
|
主权项 |
1. A downhole rotational lock mechanism, comprising:
a tubular housing having a longitudinal bore with an internal wall; a driving gear disposed in the longitudinal bore of the tubular housing, said driving gear having a peripheral edge secured to the internal wall of the longitudinal bore of the tubular housing, said driving gear having an upper portion including a plurality of gear teeth arranged around a central longitudinal bore through the driving gear; a driven gear movably disposed in the longitudinal bore of the tubular housing, said driven gear having a central longitudinal bore, said driven gear having a lower portion including a plurality of gear teeth; and an output drive shaft disposed longitudinally in the longitudinal bore of the tubular housing and in the longitudinal bore of the driven gear. |
地址 |
Houston TX US |