Select Page
Home 9 Training 9 Course Listing 9 Producing Unconventional with Gas Lift – From Annular to PAGL to Plunger Lift and In-Between

Producing Unconventional with Gas Lift – From Annular to PAGL to Plunger Lift and In-Between

Rajan Chokshi, PhD
INSTRUCTOR: Rajan N. Chokshi, PhD
DISCIPLINE: Engineering
COURSE LENGTH: 3 Days (Classroom) / 24-hours (Live Online)
CEUS: 3.0
AVAILABILITY: Public, In-House, & Live Online

 

ATTEND AN UPCOMING CLASS:
Contact SCA’s Training Department at training@scacompanies.com to schedule an In-House course.

SAMPLE TOPIC FROM THE CLASS: “Why and How Gas Lift is Different from GOM to Permian”
WHO SHOULD ATTEND: Production, reservoir, completion, drilling and facilities engineers, analysts, and operators working in unconventional assets. Anyone interested in learning about lifecycle and implications of gas-lift systems for their unconventional reservoirs.

COURSE DESCRIPTION: Gas-lift is one of the predominant forms of artificial lift used for lifting liquids from conventional, unconventional, onshore and offshore assets. Gas-lift and its variations – annular lift, tubular lift, plunger assisted gas lift, intermittent lift, gas-assisted plunger lift and chamber lift – allow life of well lift-possibilities when selected and applied properly. In unconventional wells, production phases and volumes vary quickly and significantly that requires non-traditional approach for selection, transition, surveillance and trouble shooting. This course is designed to give trainees thorough understanding of how unconventional production differs and what steps an operator can take to apply right sized and right form of gas lift technique to maximize profitability.

The course covers main components, application envelope, relative strengths and weaknesses of gas-lift and its different forms like intermittent lift, gas-assisted plunger lift. Trainees solve examples and class problems throughout the course. Animations and videos reinforce the concepts under discussion. A unique feature of this course is discussion on digital oil field and machine learning applications in gas-lift optimization.

Option: Client’s real-time system-based workflows and examples can be incorporated in the class discussions. Requires two-days of consulting and access to the client system at least 4 weeks before the class.

LEARNING OUTCOMES:

  • Understand the fundamental theories and procedures related to Gas-Lift operations.
  • Easily recognize the different components of the gas-lift system and their basic structural and operational features.
  • Be able to select an appropriate gas lift configuration for different life stages of an unconventional well.
  • Recent advances in real-time approaches to the production monitoring and lift management

COURSE CONTENT:

  • Introduction
    • Artificial Lift: When / Why / What of Lift Mechanisms; Types
    • How Gas-lift is same and different from other lift forms.
    • Well Life Cycles and gas lift Applicability vis a vis other lift methods
  • Well Performance: Review of Fundamentals
    o Systems/NODAL Analysis
    o Reservoir Performance: Productivity Index & Inflow Performance Relationship (IPR)
    o PVT Analysis
    o Multiphase Flow
    • Flow Correlations & Mechanistic models; Flow Regimes/maps
    • Pressure Gradient Curves
    • VLP: Vertical Lift Performance
  • Gas Lift Installation Types
  • Gas Lift Valves
    • Gas Lift Valve Types and Valve Construction
    • Setting of Gas Lift Valves
    • Application of Gas Lift Valves
  • Continuous Flow Gas Lifting
    o Installation Design Calculations
    o The Effects of Operational Parameters
    o Surface Gas Injection Control
  • Optimization of Continuous Flow Gas Lift Installations
    o Basic Principles
    o Optimization of a Single Well
    o Single-Well Optimization for Unlimited Rate
    o Allocation of Lift Gas to a Group of Wells
  • Gas Lift Application in Unconventional Production
    • High-Rate Production Phase – Annular
    • Gas Lift Switch overs as production declines
      • Tubular Gas lift
      • Plunger Assisted Gas-Lift
      • Gas-assisted plunger lift
      • Intermittent gas-lift
      • Chamber Lift
    • Operator Case studies from Permian & Eagle Ford
  • Analysis and Troubleshooting of Continuous Flow Gas Lift Wells
    • Troubleshooting Tools and their Use
    • Common Gas Lift Malfunctions
  • Digital Oil Field for Production Optimization
    • Downhole P/T Measurements Components
    • Surface Flow Measurement Components
    • Role of software in visualization, analysis and surveillance
  • Brief discussion on use cases for data analytics

FIND UPCOMING EVENTS