METHOD FOR DETERMINING FILTRATION PROPERTIES OF NON-HOMOGENEOUS POROUS SAMPLES Russian patent published in 2022 - IPC G01N15/08 G01N25/00 G06T15/08 

FIELD: computing technology.

SUBSTANCE: invention relates to the field of computing technology for analysing digital models. Claimed is a method wherein: a sample is scanned, resulting in a three-dimensional digital image of the sample; a fragment of the same sample is scanned with a higher resolution; the resulting images of sample fragments are spatially aligned; the obtained sample image is segmented; the images of sample fragments are segmented; fractures are marked in the image of the sample, resulting in an image of the sample with the marked fractures; a regression model for the correlation dependence of local filtration properties on local features of the cropped image of the sample with marked fractures is constructed, common for all fragments; using the resulting regression model, a digital model of the sample is obtained, and hydrodynamic modelling of the filtration properties is performed on said digital model of the sample, resulting in the determination of the filtration properties of the sample.

EFFECT: provided possibility of correctly modelling the filtration properties of a low-permeable fractured sample without the need to obtain a three-dimensional image of the entire sample with a quality sufficient to resolve the internal geometry of the fractures.

15 cl, 4 dwg