DigiM porosimetry numerically simulates liquid-intrusion-based drainage and imbibition processes using high performance computing, and obtains capillary pressure and controlling pore-throat distribution.
DigiM porosimetry is designed to solve all problems encountered in a physical porosimetry measurement (such as Mercury Intrusion Capillary Porosimetry — MICP), particularly for soft materials. DigiM porosimetry avoided the following difficulties in physical MICP,
- Sample damage under high pressure;
- Sample deformation and compression under pressure;
- Long turn-around time for low porosity and low permeability material;
- The use of environmentally hazardous material such as Mercury.
In addition to avoiding problems, DigiM porosimetry offers further advantages,
- Simulations can be performed in 2D and 3D;
- All drainage or imbibition stages can be visualized directly;
- Residual saturation can be predicted and visualized;
- Liquid intrusion can be initiated along any of the three directions to study flow anisotropy;
- Wettability and its impact on flow properties can be studied in a controlled manner;
- Digital models can be reused for mixed wettability and complex multiphase studies.
The slides below demonstrate a validation case study on a sintered glass bead where both physical and digital porosimetry experiments are conducted on the exact same sample.
Primary Drainage and Imbibition Visualization
Blue: non-wetting phase; Grey: trapped non-wetting phase