A METHOD FOR DETERMINING A THREE-DIMENSIONAL SPATIAL DISTRIBUTION OF POROSITY IN A SAMPLE OF A HETEROGENEOUS POROUS MEDIUM

摘要

A method for obtaining 3D spatial distribution of porosity (porosity map or porous model) inside a sample of a heterogeneous porous medium comprises obtaining a 3D microstructural image of the sample by a 3D microstructural imaging procedure and measuring a total porosity of the sample. Then, values in the obtained 3D microstructural image that correspond to fully void and fully solid voxels are determined and the obtained 3D microstructural image data is normalized using the determined values corresponding to the fully void and the fully solid voxels. Finally, a 3D spatial distribution of porosity of the sample is created by a computing device using the normalized 3D microstructural image and the measured total porosity.