Gas-Lift Breakout Session Report Out Fall 2003 Gas-Lift Workshop Wednesday, October 22, 2003 Dual Gas-Lift --- Highlights Information we’d like to see in API RP 11V9 Design method to produce both high and low PI wells (sides of a dual well) at same time Ways to effectively model dual wells Methods to unload – unload together or one at a time Effects of temperature on unloading valve design Some actual/potential dual gas-lift problems Problems if use IPO valves on both sides of a dual Lift from different depths in each side Need good well data to design PPO valves Problems with 1” nitrogen and spring charged PPO valves hanging open Flow cutting of upstream choked valves 6/28/2019 Gas-Lift Surveillance Course

Gas-Lift Breakout Session Report Out Fall 2003 Gas-Lift Workshop Wednesday, October 22, 2003 Dual Gas-Lift --- Highlights Some actual/potential successes in dual gas-lift Use PPO valves for unloading Install IPO valves at operating depth Install nozzle venturi in poor side to limit injection Some say to not use a nozzle venturi on both sides Some think it would be OK Use same port size on both sides Use of proportional response or constant flow valves better than IPO Use IPO on one side, PPO on other Unload IPO side first Use operating casing pressure to design/unload other side 6/28/2019 Gas-Lift Surveillance Course