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Rel-Perm Designer

Relative Permeability & Capillary Pressure Modelling

Build and calibrate relative permeability and capillary pressure models from SCAL data – for more accurate reservoir simulation

Advanced Relative Permeability and Capillary Pressure (Pc) Modelling

tNavigator’s Relative Permeability Designer is specialised reservoir modelling software for analysing, customising and visualising relative permeability and capillary pressure (Pc) properties. It lets reservoir engineers build accurate fluid flow models by integrating SCAL data, advanced modelling techniques and flexible visualisation tools within a single workflow.

Improve Simulation Accuracy with Advanced Flow Property Modelling

Relative permeability and capillary pressure are critical inputs for reservoir simulation. Relative Permeability Designer simplifies the creation and optimisation of these properties, helping generate realistic flow behaviour, reduce uncertainty and improve simulation reliability.


Comprehensive Flow Property Modelling

Model complex reservoir behaviour using advanced relative permeability and Pc workflows, including hysteresis and multiphase flow analysis.

Customisation and Visualisation

Create tailored relative permeability curves with flexible scaling and correlation tools, while visualising drainage, imbibition and scanning processes.

Integrated Data and Workflow Tools

Import SCAL data, use built-in rock type libraries and export properties directly into simulation models – reducing manual effort and improving consistency.


RP Designer supports advanced fluid flow modelling workflows:

  • Relative permeability curve modelling – create and adjust relative permeability curves for different reservoir conditions.
  • Capillary pressure modelling – define Pc relationships for accurate fluid distribution.
  • SCAL data integration – import and analyse Special Core Analysis data.
  • Hysteresis modelling – capture drainage, imbibition and scanning behaviour.
  • End-point scaling & correlations – customise models using empirical and analytical methods.
  • Ternary diagrams & flow visualisation – analyse multiphase flow behaviour.
  • Buckley-Leverett analysis – model immiscible displacement processes.
  • Seamless export to simulation – transfer properties directly into reservoir simulation workflows.

Relative Permeability Designer is fully integrated within the tNavigator platform:

  • Export relative permeability and Pc properties directly into reservoir simulation models.
  • Align with Model Designer for consistent model preparation.
  • Support history matching and uncertainty workflows.

A seamless workflow from laboratory data to simulation-ready inputs.

Common Use Cases:

  • Building relative permeability and Pc curves from SCAL data
  • Modelling multiphase flow behaviour in reservoirs
  • Analysing hysteresis effects in fluid movement
  • Supporting history matching and calibration workflows
  • Improving accuracy of reservoir simulation inputs