发明名称 Rod pump stuffing box
摘要 A stuffing box for sealing around a polished rod in a well including a cylindrical connector for receiving the polished rod, a packing member having top and lateral surfaces and wherein the packing member is concentrically disposed around the polished rod, a body concentrically disposed around the packing member and sealing engaging the cylindrical connector, and wherein the body may be selectively moved to expose the top and lateral surface of the packing members is disclosed. A method of repairing, redressing, or replacing packing members of a stuffing box including providing a stuffing box at a wellhead, manipulating the stuffing box such that top and lateral surfaces of the packing members are exposed, removing the packing members, and redressing the stuffing box with new packing members is also disclosed.
申请公布号 US7861771(B2) 申请公布日期 2011.01.04
申请号 US20070761258 申请日期 2007.06.11
申请人 SMITH INTERNATIONAL, INC. 发明人 MCCREEDY PAUL;THIRY MERLIN;NEUDORF RAY
分类号 E21B19/00 主分类号 E21B19/00
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