CONTENTS
1. The Production System
* Reservoir inflow performance
* Vertical lift performance
* Pressure traverse
* Operating point
* Nodal analysis
* Justification for gas lift
2. Introduction to Gas Lift
* Principles of gas lift
* Overview of gas lift installations
* Introduction to gas lift valves
* Gas lift completions
3. Gas Lift Design: Positioning the Operating Valve
* System design/sensitivity analysis
* Gas lift performance: reservoir/completion/lift gas parameters
* Worst case and expected case designs
4. Gas Lift Design: Positioning the Unloading Valves
* Valve spacing
* Transfer marginsFluid and casing controlled valves
* Shut in fluid column
5. Gas Lift Design: Valve Sizing
* Simple force balance model for valve operation
* Dome pressure setting
* Manufacturers’ valve data
* Test rack opening/closing pressures
* Temperature adjustments
* Valve spread
6. Valve Performance
* Dynamic flow testing
* Gas throughput operating point
* Valve performance curves
* Valve performance modeling
* Gas throughput operating point
* Sensitivity: port size, gas rate, cas/tbg pressures
7. Gas Lift Operations
* Unloading procedures
* Running tools/mandrels
* Gas conditioning
* Gas compression requirements
8. Lift Gas Allocation and Production Optimization
* Prerequisites for lift gas allocation and optimization
* Well performance curves
* Multi well networks
* Manual lift gas allocation example
* History matching and tuning to field data
* Non hierarchical networks
9. Gas Lift Troubleshooting
* Dynamic gas lift simulation
* Pressure instabilities
* System response to lift gas variables
* Cycling and multi pointing
* System response to changing reservoir behavior
METHOD
Presentation
Discussion
Case Study
Evaluation
Instructor by : Sudibyo
