Coiled tubing concentric gas lift valve assembly

摘要

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 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.