Coiled tubing wireline retrievable and selective set gas lift assembly

摘要

A gas lift assembly 10 and gas lift valve 16 are positioned in coiled tubing 12. The coiled tubing housing and gas lift valve are flexible for allowing the coiled tubing to be spooled. The gas lift valve 16 is wireline retrievable for allowing gas lift valves to be removed for allowing other tools to pass through the coiled tubing. The gas lift valves 16 are selective in that they will seat only in a selected coiled tubing housing 14 as each valve has keys 62 which will match recesses 50 in the coiled tubing housing 14.