发明名称 APPARATUS AND METHOD FOR CONNECTING TUBULARS OF WELLSITE
摘要 A rotational driver for driving a connector through adjacent tubulars is provided. The adjacent tubulars are positionable in a wellbore of a wellsite for passing fluid therethrough. The rotational driver includes a gearbox housing positionable about the connector, a socket carried by the gearbox housing to receivingly engage the connector, and a plurality of gears driven by at least one motor. The gears are operatively connectable to the socket to transfer torque from the motor thereto, and have interlocking teeth defining a plurality of contacts therebewteen whereby load on the gears is distributable therebetween.
申请公布号 WO2015038330(A1) 申请公布日期 2015.03.19
申请号 WO2014US52770 申请日期 2014.08.26
申请人 NATIONAL OILWELL VARCO, L.P. 发明人 JAHNKE, DOUGLAS, AARON
分类号 E21B17/08;E21B19/16 主分类号 E21B17/08
代理机构 代理人
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