DESIGNED FOR YOU, IF YOU ARE…

• Petroleum engineering or field staff involved in the selection, design, operation or troubleshooting of gas lift systems

HOW WE BUILD YOUR CONFIDENCE

• Combination of live instructor-led training coupled with self-directed learning, live Q&A sessions and group discussions

THE BENEFITS FROM ATTENDING

The objectives of the course will be to enable participants to:

• Become familiar with gas lift methods, concepts of operation and equipment
• Perform gas lift design procedures for new or existing wells
• Recognise the correct data required for well analysis and troubleshooting
• Diagnose and troubleshoot gas lift well performance
• Optimise the gas lift system for production and long term reliability

TOPICS

Gas lift systems concepts and equipment

• Introductions and course objectives
• Review and recap of well and reservoir performance fundamentals; oil composition and fluid characterisation
• Gas lift introduction; concepts and theory, gas lift performance curves and depth of injection
• Pressure gradient traverse plots and generation using multiphase flow correlations
• Gas lift equipment overview; gas lift valve operation and equations; installation and removal
• Teardown and inspection of gas lift equipment; well integrity issues
• Gas lift references and resources
• Practical workshop session; gas lift valve hand calculations

Gas lift systems design

• Gas lift design overview (conceptual vs. detailed) and principles
• Generating 4 variable lift curves for gas lift wells
• Practical workshop session; conceptual gas lift design
• Gas lift unloading process and key factors to ensure success
• Consideration of safety factors for mandrel spacing and valves operation
• Detailed gas lift design procedure for continuous gas lift wells; special applications
• Practical workshop session; conceptual and detailed gas lift design and exporting VLPs

Gas lift systems diagnosis, practical troubleshooting and optimisation

• Gas lift operations, monitoring and procedure for unloading a new well
• Gas lift diagnosis and troubleshooting; key concepts and procedure for analysis
• Flowing gradient survey interpretation and matching; determination of injection depth, orifice pressure drop, etc.
• Practical workshop sessions; building and matching of well models using field data
• Practical workshop sessions; gas lift well diagnosis using gradient traverse plots with field data
• Dealing with problem wells (instability, slugging, multi-point injection etc.)
• Re-design of a gas lift valve setting for an existing well to address these problems
• Practical workshop session; gas lift well re-design using existing mandrels with field data
• Introduction to surface network modelling; well performance curves, interactions between wells and pipelines
• Shortage of gas supply; gas-lift allocation concepts & multi-well optimisation techniques
• Practical workshop session; building a wellhead platform model with field data
• Matching field performance and running gas lift gas allocation sensitivities
• Review, conclusions and evaluation form completion

Note:
Each day will include practical workshop sessions illustrating the application of theory to gas-lift well models. Participants are encouraged to bring field data and examples to interpret and analyse.