Invention Grant
US07753115B2 Flow control system having an isolation device for preventing gas interference during downhole liquid removal operations 失效
流量控制系统具有隔离装置,用于在井下液体移除操作期间防止气体干扰

Flow control system having an isolation device for preventing gas interference during downhole liquid removal operations
Abstract:
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.
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