发明名称 Wellbore Plug and Method
摘要 A wellbore plug and method for retrieving two or more wellbore plugs simultaneously from the wellbore. The wellbore plug can be actuated to an open position and released from engagement in the wellbore. The plug can be locked in an open position, and remain in an open position without regard to weight or tension applied to the plug. The released and locked open plug can be lowered to next plug to be retrieved. Prior to connecting to the next plug, reverse and/or normal fluid circulation can be utilized to clean the next plug. Upon connecting the first plug to the second plug, the second plug can be locked open and released in by applying tension in the same manner as the first plug. The process can continue to retrieve multiple plugs.
申请公布号 US2011226478(A1) 申请公布日期 2011.09.22
申请号 US201113118038 申请日期 2011.05.27
申请人 HORTON J DALE 发明人 HORTON J. DALE
分类号 E21B31/00;E21B33/12 主分类号 E21B31/00
代理机构 代理人
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