发明名称 PACKING ELEMENT SYSTEM WITH PROFILED SURFACE
摘要 A downhole retrievable dual directional isolation tool, comprising a mandrel, a compressor ring concentric with the mandrel, and a packing element concentric with the mandrel and having an outer surface defining a plurality of grooves. A downhole retrievable dual directional isolation tool, comprising a mandrel, a packing element concentric with the mandrel, a compressor ring concentric with the mandrel and having a first side wall proximate to a second side wall of the packing element, and a stop ring concentric with the mandrel having a third side wall proximate to a fourth side wall of the packing element, wherein the first side wall of the compressor ring or the third side wall of the stop ring have a circumferential land, whereby in a set state of the tool a contact area between the circumferential land and the second side wall of the packing element or the fourth side wall of the packing element achieves higher contact pressure.
申请公布号 WO2012005871(A2) 申请公布日期 2012.01.12
申请号 WO2011US40032 申请日期 2011.06.10
申请人 HALLIBURTON ENERGY SERVICES, INC.;CRABB, JAMES;TAYLOR, RONALD GEORGE 发明人 CRABB, JAMES;TAYLOR, RONALD GEORGE
分类号 E21B33/12;E21B23/06 主分类号 E21B33/12
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