DESCRIPTION

The course begins with a quick overview of production systems analysis and justification of gas lift as a means of increasing well productivity, followed by an introduction to gas lift principles, surface installations, and downhole equipment. The three basic elements of continuous gas lift design are covered thoroughly: operating valve positioning, unloading valve positioning, and valve sizing. Other topics covered in the course include gas lift operations, multi well lift gas allocation, and optimization, as well as a special section devoted entirely to intermittent gas lift.

COURSE OUTLINE

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
   • Fluid and casing controlled valves
   • Transfer margins
   • 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 & 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
10. Intermittent Gas Lift
    • Intermittent gas lift installations
    • Fallback
    • Valve positioning
    • Plunger assisted intermittent gas lift
    • Chambers
    • Regulating IGL
    • Intermittent gas lift troubleshooting

PARTICIPANT

The course is suitable for Production Engineers, Field Supervisors who select, design, install, evaluate, or operate artificial lift systems and have a basic knowledge in the design and analysis of such installation

TRAINING METHOD

Presentation, Discussion, Case Study, Evaluation

FACILITIES

Training Kit, Handout, Certificate, 1 X Lunch, 2 X Coffee Break Souvenir

TRAINING FEE for Gas Lift Design, Operation and Procedure