Paper: Installation and Operation of Pilot Controlled Gas-Lift Valves in Multiple Completion Wells

The purpose of this paper is to show how the design and operation of pilot-controlled gas-lift valves have overcome many of the inherent problems of multiple completions. Within the production tubing string, multiple completed wells are no different than single completions. From a gas-lift standpoint, the main difference is that several wells producing from a common casing, have a common casing annulus gas supply. This fact eliminates the use of pressure in the annulus as the sole means for actuating the gas-lift valves.