发明名称 Downhole rotating tool
摘要 A rotating tool combinable with other downhole tools into a tool string, where the rotating tool is capable of imparting a rotational force onto the tool string. The tool string is suspendable from a threaded lead screw. Optionally, a gyroscope can be included to generate azimuthal readings and confirm the azimuthal orientation of the tool string. The rotating tool includes a compression assembly, a hydraulic assembly, and a stationary assembly. Actuation of a valve on the hydraulic assembly provides for the release of fluid therein that allows for movement of a rotating piston. Rotation of the piston is produced as it travels axially along the threaded lead screw, the rotation of the piston is subsequently transferred to the rotating tool.
申请公布号 US2005133220(A1) 申请公布日期 2005.06.23
申请号 US20030738445 申请日期 2003.12.17
申请人 BAKER HUGHES, INCORPORATED 发明人 BISHOP CHARLES H.
分类号 E21B23/00;E21B43/119;(IPC1-7):E21B43/119 主分类号 E21B23/00
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