GAS LIFT
Gas Lift System Advantages
– High degree of flexibility and design rates
– Wireline retrievable
– Handles sandy conditions well
– Allows for full bore tubing drift
– Surface wellhead equipment requires minimal space
– Multi-well production from a single compressor
– Multiple or slim hole completion
Gas Lift System Disadvantages
– Needs high-pressure gas well or compressor
– One well leases may be uneconomical
– Fluid viscosity
– Bottom hole pressure
– High back-pressure
Gas Lift System Application Considerations
Typical Range Maximum
Operating Depth 5,000 to 10,000 ft TVD 15,000 ft TVD
Operating Volume 100 to 10,000 BPD 30,000 BPD
Operating Temperature 100 to 250°F 400°F
Wellbore Deviation 0 – 50° 70° short to medium radius
Corrosion Handling Good to excellent with upgraded materials
Gas Handling Excellent
Fluid Gravity Best in >15°API
Servicing Wireline or work over rig
Prime Mover Type Compressor
Offshore Application Excellent