发明名称 Severing of downhole tubing with associated cable
摘要 Methods for severing tubing having a cable extending along its length include lowering a first cutting torch into the tubing to a desired location, igniting the first cutting torch, and directing cutting fluids in a circumferential arc to form a first cut in the tubing and sever the cable. A second cutting torch can be lowered and positioned relative to the first cut, and ignited to direct cutting fluids radially to cut the tubing all around the circumference, enabling retrieval of the tubing. The need for precise positioning and alignment of the torches to sever both the cable and tubing is thereby eliminated.
申请公布号 US8020619(B1) 申请公布日期 2011.09.20
申请号 US20080055434 申请日期 2008.03.26
申请人 ROBERTSON INTELLECTUAL PROPERTIES, LLC 发明人 ROBERTSON MICHAEL C.;BOELTE WILLIAM
分类号 E21B43/114;E21B29/04 主分类号 E21B43/114
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