发明名称 Pipe running tool having internal gripper
摘要 A system for coupling a pipe segment to a pipe string is provided that includes a top drive assembly having an output shaft; and a pipe running tool coupled to the top drive assembly and rotatable by the output shaft of the top drive assembly. The pipe running tool includes an internal gripper for insertion within an internal diameter of the pipe segment and a tapered slip cone section, which slidably receives corresponding tapered surfaces of a plurality of slips, such that a vertical force on the slips causes the slips to move radially outwardly into gripping engagement with the internal diameter of the pipe segment, and wherein the vertical force applied to the slips is sufficient to allow the gripping engagement of the slips with the internal diameter of the pipe segment to transmit a torque from the top drive output shaft to the pipe segment.
申请公布号 US7753138(B2) 申请公布日期 2010.07.13
申请号 US20050165690 申请日期 2005.06.24
申请人 VARCO I/P, INC. 发明人 JUHASZ DANIEL;BOYADJIEFF GEORGE;EIDEM BRIAN L.;VAN RIJZINGEN HANS;KAMPHORST HERMAN M.;BOETTGER HANS JOACHIM DIETRICH;VAN WECHEM GUSTAAF LOUIS;MASON DAVID;KRIJNEN ANTON
分类号 E21B19/22 主分类号 E21B19/22
代理机构 代理人
主权项
地址