US 11,885,757 B2
Material properties from two-dimensional image
Glen L. Gettemy, Katy, TX (US); Nirjhor Chakraborty, Houston, TX (US); and Milad Saidian, Houston, TX (US)
Assigned to BP Corporation North America Inc., Houston, TX (US)
Filed by BP Corporation North America Inc., Houston, TX (US)
Filed on May 10, 2021, as Appl. No. 17/316,144.
Claims priority of provisional application 63/021,885, filed on May 8, 2020.
Prior Publication US 2021/0349042 A1, Nov. 11, 2021
Int. Cl. G01N 23/2251 (2018.01); G06T 7/143 (2017.01); G06T 7/11 (2017.01); G06T 7/174 (2017.01); G01N 33/24 (2006.01); G06T 7/10 (2017.01); G06T 7/00 (2017.01); G06T 17/00 (2006.01)
CPC G01N 23/2251 (2013.01) [G01N 33/24 (2013.01); G06T 7/10 (2017.01); G06T 7/11 (2017.01); G06T 7/143 (2017.01); G06T 7/174 (2017.01); G06T 7/97 (2017.01); G06T 17/00 (2013.01); G01N 2223/07 (2013.01); G01N 2223/401 (2013.01); G01N 2223/418 (2013.01); G01N 2223/507 (2013.01); G01N 2223/616 (2013.01); G06T 2207/10024 (2013.01); G06T 2207/10061 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for analyzing a rock sample, comprising:
performing scanning electron microscope (SEM) imaging of a plurality of physical faces of a rock sample to generate two-dimensional (2D) SEM images of the physical faces;
applying a cross-correlation function to a first 2D SEM image and a second 2D SEM image to generate a three-dimensional (3D) digital model volume based on the first and second 2D SEM images; and
determining a probability distribution of a pore size of the 3D digital model volume based on an image intensity value of a pixel in each of the first and second 2D SEM images.