发明名称 System, apparatus and method for facilitating retrieval of an item from a well
摘要 A system for facilitating retrieval of an item from a well comprises a grapple (20), and a cutting tool (30) arranged therebelow. Expulsion means (122, 154) for expelling fluid under pressure are disposed above said cutting tool (30).
申请公布号 AU2172399(A) 申请公布日期 1999.08.09
申请号 AU19990021723 申请日期 1999.01.22
申请人 WEATHERFORD/LAMB INC.;BRIAN RONALD LUCAS 发明人 GEOFFREY OWEN ROUSE;ANDRE NOLE BROUSSARD;RICHARD JAMES SNR. SEGURA;MARK WILLIAM SCHNITKER;SHANE PAUL HART
分类号 E21B31/16;E21B31/18 主分类号 E21B31/16
代理机构 代理人
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