Patent ID: 9558588
Date: 2017-01-31
CPC Classifications: G01N,G06T

Claim:
1. A method for building a 3D model of a rock sample, the method comprising: performing X-ray micro/nanoCT scanning of a rock sample at a particular resolution, obtaining an initial three-dimensional microstructure image of the rock sample in a gray scale, performing analysis of the obtained initial three-dimensional microstructure image of the rock sample, the analysis includes checking the presence of significant artifacts, selecting a global binarization thresholding method if a porosity of the rock sample is known, pores of the rock sample have sizes above the resolution and the initial three-dimensional microstructure image does not contain significant artifacts, selecting an automated binarization thresholding method if the pores of the rock sample have sizes under the resolution or the initial three-dimensional microstructure image contains significant artifacts, selecting an automated binarization thresholding method or a local binarization thresholding method if the porosity of the rock sample is unknown, at least once applying the selected binarization method to the obtained initial three-dimensional microstructure image of the rock sample, obtaining a 3D binarized image representing a 3D model of the rock sample.