More information
- Introduction
- Wettability
- Validating SCAL Data
- Use of Capillary Pressure to Define Connate Water Saturation
- Water-Oil Relative Permeability
- Gas-Oil Relative Permeability
- Residual Oil Saturation
- Reservoir Characterisation
Introduction
- Uses and importance of accurate special core analysis results in reservoir engineering calculations
- Key challenges in using results.
Wettability
- Wettability concepts and measurement techniques
- Types of wettability
- Factors which affect reservoir wettability and how natural wettability can inadvertently be altered during core handling
- Wettability restoration
Validating SCAL Data
- What to look for during review of SCAL reports
- A systematic approach to data validation
- Review checklists
Use of Capillary Pressure to Define Connate Water Saturation
- Measurement techniques
- Shortcomings of air-mercury data
- Adjusting laboratory data to reservoir conditions
- Correlation techniques
- Reconciling with data from other sources
Water-Oil Relative Permeability
- Measurement methods and techniques
- Wettability considerations
- Importance of test procedures and test conditions
- Special problems with intermediate wettability reservoirs
- Refining laboratory results
- Integrating, grouping and averaging
Gas-Oil Relative Permeability
- Measurement techniques
- Differences between gas-oil and water-oil data
- Critical gas saturation
- Efficient gravity drainage mechanism and extending oil relative permeability curves
Residual Oil Saturation
- Ambiguity and alternative definitions
- Difficulties in determining
- Estimating from relative permeability data
- Effect of wettability
Reservoir Characterisation
- Examples of relationships between relative permeability and other rock characteristics
- Characterisation techniques for differentiating rock types and assigning results to those rock types
While the primary objective of the course is to prepare reservoir engineers and/or geologists to validate and use existing results, it will be invaluable to those faced with the responsibility of formulating a special core analysis programme for a new well or field.
The potential savings in avoiding expensive programmes yielding unreliable or questionable results are significant.