发明名称 |
DRILLING MOTOR WITH ONE-WAY ROTARY CLUTCH |
摘要 |
A drilling motor assembly can include a housing, a shaft, and a pawl which selectively engages a recess, the pawl having an axis of rotation and a generally planar engagement face which engages a generally planar engagement face of the recess when relative rotation between the housing and the shaft is prevented. The engaged engagement faces can be oblique relative to a radius extending from the axis of rotation to the engaged engagement faces. A method of drilling a wellbore can include flowing a fluid through a drilling motor assembly, thereby rotating a shaft relative to a housing, and rotating the housing, thereby engaging a pawl with a recess and preventing relative rotation between the housing and the shaft, the pawl and recess each having a generally planar engagement face, whereby the engaged engagement faces prevent relative rotation between the shaft and the housing. |
申请公布号 |
WO2014062158(A1) |
申请公布日期 |
2014.04.24 |
申请号 |
WO2012US60345 |
申请日期 |
2012.10.16 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
DOWNIE, ANDREW, M.;CRAMPTON, CHRISTOPHER, P. |
分类号 |
E21B4/02;E21B3/02;E21B4/10 |
主分类号 |
E21B4/02 |
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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