发明名称 DOWNHOLE MOTOR WITH DIAMOND-LIKE CARBON COATING ON STATOR AND/OR ROTOR
摘要 In aspects, the disclosure provides a drilling motor that includes a stator and a rotor disposed in the stator, wherein the inner surface of the stator and/or outer surface of the stator includes a coating of a diamond-like carbon material.
申请公布号 WO2013009796(A3) 申请公布日期 2013.04.04
申请号 WO2012US46144 申请日期 2012.07.11
申请人 BAKER HUGHES INCORPORATED;SCOTT, DAN, E.;LIN, CHIH 发明人 SCOTT, DAN, E.;LIN, CHIH
分类号 E21B4/02;C22C26/00;F04C2/107 主分类号 E21B4/02
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