发明名称 Multiple stage tool for use with plunger lift
摘要 A multiple stage tool for use with plunger lift is disclosed. The disclosed device can be removably positioned at a desired position in a well's tubing, thus providing an upper limit for the travel distance of a first plunger. Subsequent well tubing partitions can be established with the introduction of subsequent plungers followed by the disclosed device.
申请公布号 US7878251(B2) 申请公布日期 2011.02.01
申请号 US20080051684 申请日期 2008.03.19
申请人 PRODUCTION CONTROL SERVICES, INC. 发明人 GIACOMINO JEFFREY L.;ROBERTS PAUL T.
分类号 E21B43/00 主分类号 E21B43/00
代理机构 代理人
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