PoroDict
PoroDict estimates the pore structure characteristics of three-dimensional models of porous media obtained from a µCT or FIB/SEM image or from a 3D model generated with GeoDict.
Topics of PoroDict
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- Theoretical Basics
Learn how pore size can be measured using the different commands of PoroDict.
- PoroDict Section
General description of the PoroDict user interface.
- Pore Size Distribution (Granulometry)
Determine the pore radius by fitting spheres into the pore volume.
- Pore Size Distribution (Porosimetry)
Porosimetry measurements like Mercury Intrusion Porosimetry measure the pore sizes by pressing a non-wetting fluid into the medium. The pressure applied is related to the radius of the pores.
- Identify Pores
This method introduces a segmentation of the pores, based on a distance transform, which identifies the number of pores, as well as the pore volume.
- Open and Closed Porosity
Determination of Open Porosity (pores connected to a domain boundary) and Closed Porosity (pores not connected to a domain boundary).
- Bubble Point
Compute the Bubble point pressure, which is a direct measure of the effective pore diameter.
- Percolation Path
This method determines the maximal diameters of spherical particles that can move through the medium. In addition, the shortest paths of the largest particles are calculated and displayed. Also, the shortest path of a given sphere size through the medium may be computed.
- Chord Length Distribution
Determine the distribution of the length of a typical chord (number of connected voxels along the computational direction) of a structure.
- Geodesic Tortuosity
Find the shortest paths crossing the material, either through pore space or through solid materials.
- Pore Analysis GeoApps
The Pore Analysis GeoApps section contains additional Python macros deployed with GeoDict which are either scripting examples or add-ins for specific applications.
- References
Publications cited in this chapter.
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