发明名称 WELLBORE MOTOR HAVING MAGNETIC GEAR DRIVE
摘要 A wellbore motor includes a source of rotational motive power disposed in a wellbore, a magnetic gear member operatively coupled at an input thereof to the source; and a magnetic gear member output coupled rotationally to a rotary wellbore tool.
申请公布号 WO2007064591(A2) 申请公布日期 2007.06.07
申请号 WO2006US45423 申请日期 2006.11.27
申请人 DEXTER MAGNETIC TECHNOLOGIES INC. 发明人 MCDONALD, WILLIAM, J.;PRICE, TIMOTHY, F.;HATCH, GARETH, P.
分类号 E21B4/00 主分类号 E21B4/00
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