Case Study: Successful Application of a Novel Gas Lift Valve in Low Pressure Wells in Fuling Shale Gas Field

The Fuling shale gas field is facing a rapid production decline due to heavy liquid loading issues. Given the condition that most wells are located at remote areas in mountains, traditional lift methods require either fixed compressor or skid-mounted trucks do not seem feasible and occur high operation costs. A new type of valve can be opened closed low dome pressure indicates sensitivity pressure. Thus, piping line utilized activate its advantages. In addition, specially designed structure activated via increases tubing create channel between annulus. previously functioned as dummy was then switched valve. Field application results show all were successfully restarted by only utilizing pressure, loaded lifted with an incremental rate reached up 27.4 × 10 kscm/d per well. Fewer slickline operations conducted replace result shows system has wide range prospect for wells, especially wells.