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E-325 - Drive Mechanisms - Enhanced Oil Recovery

E-325 - Drive Mechanisms - Enhanced Oil Recovery

8 days
This course is not scheduled.
Who should attend?


    • Newly-hired and 2- to 3-year experienced reservoir engineers, reservoir geologists, petroleum engineers and experienced technicians willing to deepen their knowledge in drive mechanisms and EOR: geoscientists, production, drilling and completion engineers moving towards reservoir engineering.


  • Proficiency
  • This course provides a thorough understanding of drive mechanisms, Enhanced Oil Recovery (EOR) and ways to optimize recovery, reserves and field development.
Learning Objectives
  • Upon completion of the course, participants will be able to:
  • explain the natural mechanisms of production of oil and gas reservoirs and discuss their related performance,
  • perform simple material balance calculations for matching reservoir parameters/forecast recovery,
  • explain the mechanisms of secondary recovery through water and non-miscible gas injection and discuss their related performance,
  • explain the mechanisms of Enhanced Oil Recovery and describe main EOR methods,
  • describe typical EOR projects workflow, related screening criteria and economics.
Course Content


2 days

  • Oil reservoirs:
  • Undersaturated oil expansion.
  • Solution gas drive.
  • Gas gap drive.
  • Natural water drive.
  • Analytical aquifer models. Hurst & Van Everdingen model. Carter-Tracy model.
  • Gas reservoirs with and without aquifer.
  • Material balance:
  • Principles and equations.
  • Drive index.
  • Application: estimating recovery factors from material balance, checking aquifer and gas cap size, checking accumulation estimate


2 days

  • Reminders about multiphase flow in the reservoir:
  • Wettability, capillarity, relative permeability.
  • Water/immiscible gas injection. Principles.
  • Multiphase flow stability and influence of mobility ratio.
  • Diffusive flow:
  • Buckley-Leverett frontal displacement theory.
  • Welge methodology.
  • Sweep efficiency:
  • Displacement or microscopic efficiency.
  • Areal efficiency.
  • Vertical efficiency.
  • Water & gas injection:
  • Sources of fluid, well injectivity, injectors pattern, expected performance of water and gas injection.
  • Cycling.


2 days

  • Practical exercises on synthetic and real field case data using MBAL™ software:
  • PVT and reservoir parameters history match.
  • Production forecast.


2 days

  • Principles and mechanisms of main EOR methods:
  • Chemical flooding.
  • Miscible gas injection.
  • Thermal flooding.
  • EOR projects:
  • Screening criteria.
  • Economics.
  • Application - Field cases.
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Ways & Means
  • Interactive lectures and exercises.
  • Real field case study.
  • Hands-on practices using MBAL™ dedicated industrial software for PVT matching, history matching and production forecast through material balance.