发明名称 COILED TUBING CONCENTRIC GAS LIFT ASSEMBLY
摘要 <p>A flexible spoolable coiled tubing gas lift valve assembly connected in a coiled tubing. The flexible valve includes a circular housing having an axial bore therethrough for allowing the passage of well tools therethrough. In one embodiment, the valve element and valve seat of the gas lift valve are eccentrically positioned in the housing. In another embodiment, the valve and valve seat are concentrically positioned in the housing. The valve element is guided and supported laterally by the housing and may include flow injection ports.</p>
申请公布号 CA2129614(C) 申请公布日期 1997.03.18
申请号 CA19942129614 申请日期 1994.08.05
申请人 CAMCO INTERNATIONAL INC. 发明人 PRINGLE, RONALD EARL
分类号 E21B17/20;E21B43/12;(IPC1-7):E21B34/12 主分类号 E21B17/20
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