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C O R E C A L I B R A T E D P E T R O P H Y S I C A L E V A L U A T I O N
An outline of the Core Calibrated Petrophysical Evaluation training
course follows. This course would normally take a relaxed 5 days, or a
very intensive 2 days.
Note that this course is fully customisable to suit client requirements.
In all versions of the course, workflows are outlined and practical
examples followed through. WellEval.com believe that people learn best
by actually working with real data.
Feedback on the October 2003 course is available here.
Course Outline
Objective setting. What experiments are required and why?
• Calibration of Porosity, Permeability, Water saturation
• Understanding saturation distributions
• Capillary Pressure, Residual Hydrocarbons, In-Situ Permeabilities
• Timing & Costs
Documentation & Audit Trails
Routine Analyses
• Preparation
• Measurement Conditions
• What Measurements are Routine
• Sampling
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Special Analyses
• Stressed Porosity & Permeability
• Formation Factor
• Resistivity Index
• Clay Conductivity
• Capillary Pressures
• Residual hydrocarbons
• Relative Permeability
Sample Selection for SCAL
• Representative sample selection
• Sample Checking
• Reliability & Quality control
Basic Interpretation
• Ambient to in-situ porosity & permeability calibrations
• Porosity to permeability Transforms
• Facies Identification
• Grain Density Calibration
Detailed SCAL Interpretation
• Cementation Exponents
• Saturation Exponents
• Clay Conductivity
Log Interpretation
• Log-Derived Porosity & Permeability
• Comparison with Core Data & Reasons for Discrepancies
• Using SCAL with Archie equation
• Clay Corrected Sw with Waxman-Smits
• Impact of Uncertainties
Other SCAL
• Relative Permeability - In-Situ Fluid Permeabilities
• Capillary Pressures - What is Possible
• Residual hydrocarbons - Normal Behaviour
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