发明名称 Dual sensor freepoint tool
摘要 An apparatus and method of determining the point at which a tubular is stuck within another tubular or a wellbore by applying a tensile or torsional force to the stuck tubular and measuring the response of various locations within the tubular. In addition, the apparatus may be combined with a cutting tool to separate the free portion of the tubular from the stuck portion.
申请公布号 US2005211429(A1) 申请公布日期 2005.09.29
申请号 US20050052939 申请日期 2005.02.08
申请人 GRAY KEVIN L;ESTES JAMES D 发明人 GRAY KEVIN L.;ESTES JAMES D.
分类号 E21B29/00;E21B31/00;E21B47/09;(IPC1-7):E21B29/00 主分类号 E21B29/00
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