发明名称 GAS LIFT VALVE
摘要 A method for performing downhole gas lift operations includes coupling a gas lift valve to a tubing, wherein the gas lift valve includes an actuator, a flow control device disposed in the actuator, and a closure member that is initially in an open position; injecting a gas downhole and exterior to the tubing; urging the gas to enter the tubing via the gas lift valve; and creating a sufficient pressure differential across the gas lift valve to move the actuator, thereby causing the closure member to close the gas lift valve.
申请公布号 US2015083433(A1) 申请公布日期 2015.03.26
申请号 US201414493505 申请日期 2014.09.23
申请人 Weatherford/Lamb, Inc. 发明人 LONG Stephen David;SALIHBEGOVIC Zlatko;HOPE J. Michael
分类号 E21B43/12;E21B33/10;E21B34/10 主分类号 E21B43/12
代理机构 代理人
主权项 1. A method for performing downhole gas lift operations, comprising: coupling a gas lift valve to a tubing, wherein the gas lift valve comprises an actuator, a flow control member disposed in the actuator, and a closure member that is initially in an open position; injecting a gas downhole and exterior to the tubing; urging the gas to enter the tubing via the gas lift valve; and creating a sufficient pressure differential across the gas lift valve to move the actuator, thereby causing the closure member to close the gas lift valve.
地址 Houston TX US