发明名称 FISHING OVERSHOT TOOL
摘要 A fishing tool gripper head including at least one moveable jaw of a set of jaws, a motivator including one or more of an SMA, SMP, or EAP material in operable communication with the at least one moveable jaw and a method for engaging a fish in a wellbore.
申请公布号 US2009308590(A1) 申请公布日期 2009.12.17
申请号 US20080140771 申请日期 2008.06.17
申请人 BAKER HUGHES INCORPORATED 发明人 XU YANG
分类号 E21B31/12 主分类号 E21B31/12
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