Patent ID: 11879825
Assignee: SHELL USA, INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method for estimating the permeability of rock, comprising:
obtaining a three-dimensional image of a rock wherein the image is comprised of a plurality of voxels and the image has a resolution;
processing the three-dimensional image of the rock to segment the image by selecting each voxel of the image to represent either pore space in the rock or solid material in the rock;
estimating an image permeability of the rock from the segmented three-dimensional image of the rock;
deriving a non-wetting liquid capillary pressure curve from the segmented three-dimensional image of the rock;
determining one or more permeability correction factors from the segmented three-dimensional image and the non-wetting liquid capillary pressure curve; and
applying the one or more permeability correction factors to the image permeability of the rock to obtain a corrected permeability of the rock.