发明名称 Well packer and method of use thereof
摘要 A packer and a method of setting a packer is disclosed that combines features of both compression-set packing elements and inflatable packing elements. The packing element of the packer includes elongated strips of reinforcing material that are bent away from the packer mandrel, when the packer is set, to move an annular body of elastomeric material into sealing engagement with an adjacent surface. Upstream pressure is supplied to the space between the mandrel and the packing element to help hold the packing element in such sealing engagement.
申请公布号 US4403660(A) 申请公布日期 1983.09.13
申请号 US19800176403 申请日期 1980.08.08
申请人 MGC OIL TOOLS, INC. 发明人 COONE, MALCOLM G.
分类号 E21B33/127;E21B33/128;(IPC1-7):E21B33/12;E21B33/12 主分类号 E21B33/127
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