发明名称 Tools and methods useful with wellbore reverse circulation
摘要 Docun tl8-12/05/2014 A tool catcher to catch a tool approaching the tool catcher, the tool including a fluid passage therein and a seal in the fluid passage. The tool catcher comprising a body 5 including a secured end and an outboard end; engaging devices supported on the body, the engaging devices formed to act to resist passage therepast of a structure moving in a direction from the secured end towards the outboard end; and a stinger at the outboard end to open the seal in the fluid passage of the tool.
申请公布号 AU2014202557(A1) 申请公布日期 2014.06.05
申请号 AU20140202557 申请日期 2014.05.12
申请人 TESCO CORPORATION 发明人 TATE, BARRY J.;WARREN, TOMMY M.;TESSARI, ROBERT M.
分类号 E21B23/04;E21B23/08;E21B31/00 主分类号 E21B23/04
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