发明名称 PACKER ELEMENT RETAINING SYSTEM
摘要 A bridge plug (10) having a segmented backup shoe (66), and at least one split cone extrusion limiter (82), the extrusion limiter comprising a two pa rt conical retainer positioned between packer elements (56) and the segmente d backup shoe (66) to block packer element extrusion though spaces between b ackup shoe segments.
申请公布号 CA2662406(A1) 申请公布日期 2008.03.20
申请号 CA20072662406 申请日期 2007.09.12
申请人 HALLIBURTON ENERGY SERVICES, INC. 发明人 SMITH, DONALD;WINSLOW, DONNY;SUTTON, MIKE;MARTIN, TRACY
分类号 E21B33/12 主分类号 E21B33/12
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