发明名称 Flow control system having an isolation device for preventing gas interference during downhole liquid removal operations
摘要 A flow control system includes a pump positioned in a wellbore to remove liquid from the wellbore. An isolation device is positioned downhole of the pump and is expandable within the wellbore between a sealed position and an unsealed position. The isolation device in the sealed position substantially reduces gas flow at the pump during removal of the liquid.
申请公布号 US7753115(B2) 申请公布日期 2010.07.13
申请号 US20080184960 申请日期 2008.08.01
申请人 PINE TREE GAS, LLC 发明人 ZUPANICK JOSEPH A.
分类号 E21B43/12;E21B33/12 主分类号 E21B43/12
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