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Mining, Oil And Gas Technical & Engineering Yogyakarta

Gas Lift Design And Operations

Instructor by : Sudibyo 

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

TRAINING METHOD

Presentation

Discussion

Case Study

Evaluation

FACILITIES

Training Kit

Handout

Certificate

Lunch + 2 X Coffee Break

Souvenir

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