When low reservoir pressure and low production rates are present in a wellbore, intermittent gas lift can be a better option. In this process, high-pressure gas is injected in intermittent cycles to displace liquid slugs to the surface. This lift method is only used for tubing flow applications and can be a more efficient use of the available lift gas.
Adding a Plunger to an Intermittent Gas Lift System greatly increases the fluid recovery efficiency per cycle.
Intermittent Flow – Features and Benefits:
- Utilized for low production rates and low bottom hole pressure
- Take well to depletion without the need for a pumping unit
- High pressure gas injected in cycles to lift slugs of fluid
- Tubing flow configurations only
- Surface or downhole annular gas storage required for lift cycles
- Plunger can be added for increased efficiency in lifting fluid slugs
- Proper design and optimization efforts required for max production
- Effective Pilot valve or large ported valve setup for maximized cycle lift times