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 part conical retainer positioned between packer elements (56) and the segmented backup shoe (66) to block packer element extrusion though spaces between backup shoe segments.
申请公布号 CA2662406(C) 申请公布日期 2011.11.01
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
代理机构 代理人
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