发明名称 COMPOSITE CEMENT RETAINER
摘要 A downhole plug is provided. In one or more embodiments, the plug includes a body and an element system disposed about the body. The plug further includes a first and second back-up ring member having two or more tapered wedges. The tapered wedges are at least partially separated by two or more converging grooves. First and second cones are disposed adjacent the first and second back-up ring members.
申请公布号 CA2603337(A1) 申请公布日期 2008.03.25
申请号 CA20072603337 申请日期 2007.09.19
申请人 FRAZIER, W. LYNN 发明人 FRAZIER, W. LYNN
分类号 E21B33/13;E21B33/134;E21B33/16 主分类号 E21B33/13
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