发明名称 Motor bit system
摘要 The drill bit system may include a chassis, a head, and a first plurality of gauge pads. The chassis may be configured to be operably coupled with a first rotational motion source. The head may include a first plurality of cutters coupled with an end of the head, and the head may be rotatably coupled with chassis. The head may be configured to be operably coupled with a second rotational motion source. The first plurality of gauge pads may include a second plurality of cutters, and the first plurality of gauge pads may be fixedly coupled with the chassis.
申请公布号 US7971661(B2) 申请公布日期 2011.07.05
申请号 US20080191204 申请日期 2008.08.13
申请人 SCHLUMBERGER TECHNOLOGY CORPORATION 发明人 JOHNSON ASHLEY BERNARD;DOWNTON GEOFFREY C.;COOK JOHN M.
分类号 E21B17/10 主分类号 E21B17/10
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