发明名称 Stabilized downhole drilling motor
摘要 A downhole drilling motor comprises a housing including an integral stabilizing configuration. The stabilizing configuration may include a number of ribs which project from the surface of the housing and run longitudinally or helically along the housing. The stabilizing configuration may be a result of the cross-sectional shape of the housing which may be substantially triangular or square such that the diameter of a circle which circumscribes the cross section of the housing is substantially the same as the diameter of the borehole within which the motor may be used.
申请公布号 US6722453(B1) 申请公布日期 2004.04.20
申请号 US20010857971 申请日期 2001.06.13
申请人 CROOKS JAY C. A. 发明人 CROOKS JAY C. A.
分类号 E21B4/02;E21B7/08;E21B17/10;(IPC1-7):E21B4/02 主分类号 E21B4/02
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