Patent attributes
A gas lift system improves the recovery of petroleum fluids from a well to the surface through production tubing. The gas lift system has a packer and a lower injection mandrel connected to the production tubing below the packer. The gas lift system further includes a gas lift module connected to the production tubing above the packer, and an injection line that carries pressurized gas from the surface to both the lower injection mandrel and the gas lift module. An upper injection line valve assembly is configured to provide a source of pressurized gas from the injection line to the gas lift module, while an injection line gas lift valve assembly is configured to provide a source of pressurized gas from the injection line to the lower injection mandrel.
