9 days REE/DRIVEOR
- Newly-hired and 2-3 years experienced reservoir engineers, reservoir geologists, petroleum engineers and experienced technicians willing to deepen their knowledge in drive mechanisms and EOR: geoscientists, petroleum engineers and production engineers moving towards reservoir engineering.
- This course provides a thorough understanding of drive mechanisms, Enhanced Oil Recovery and ways to optimize recovery, reserves and field development.
- 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 and related screening criteria and economics.
- No prerequisites for this course.
Ways and 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.
Drive mechanisms - Primary recovery 2.5 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, …
Drive mechanisms - Secondary recovery 2.5 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.
Material balance 2 days
- Practical exercises on synthetic and real field case data using MBAL™ software:
- PVT and reservoir parameters history match.
- Production forecast.
Enhanced Oil Recovery 2 days
- Principles and mechanisms of main EOR methods:
- Chemical flooding.
- Miscible gas injection.
- Thermal flooding.
- EOR projects:
- Screening criteria.
- Application - Field cases.