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Shale and clay presence significantly impact effective porosity and fluid saturation calculations. IP provides multiple methods to isolate clay volume:
When dealing with complex mineralogies (e.g., carbonates with varying fractions of calcite, dolomite, and anhydrite, or unconventional shales), deterministic methods fail. The IP Mineral Solver uses an optimization routine to determine the most likely mineral and fluid mixture that matches the observed log responses. Users define the structural model (the minerals expected), and the tool solves a series of simultaneous linear and non-linear equations. Saturation Height Modeling (SHM)
Used in fresh-to-moderate salinity muds when GR is unavailable or affected by radioactive minerals like potassium feldspar. interactive petrophysics manual pdf
Right-click track layout, select Log Plot Setup , and ensure the curve display style is set to "Array" or "Image".
Critical for seismic-to-well tie.
) : Setting up porosity models and selecting appropriate saturation equations (e.g., Archie, Simandoux).
: Applying corrections based on specific logging tool types to ensure accurate base measurements before further calculations. Key Analytical Modules Users define the structural model (the minerals expected),
Merging multiple logs into a single continuous curve. 2. Basic Deterministic Workflow
Beyond basic log interpretation, IP features advanced analytics toolsets for comprehensive reservoir valuation: Mineral Solver (Optimization Module) Critical for seismic-to-well tie
The installation directory ( C:\Program Files\Geoactive\Interactive Petrophysics\Help ). Secured client portals provided by the software developer. Writing User Programs (User Calc)
Quickly find specific formulas, tool settings, or troubleshooting advice using the search function (