The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 07, 2023

Filed:

Mar. 23, 2021
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Jun Gao, Dhahran, SA;

Hyung Tae Kwak, Dhahran, SA;

Marwah M. AlSinan, Al Qatif, SA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 24/08 (2006.01); G01N 15/08 (2006.01); G01V 3/38 (2006.01);
U.S. Cl.
CPC ...
G01N 24/081 (2013.01); G01N 15/0886 (2013.01); G01V 3/38 (2013.01);
Abstract

A method includes screening heterogeneity of a rock sample using nuclear magnetic resonance testing to determine a composition of the rock sample, drilling at least one smaller rock sample representative of the determined composition, and testing the at least one smaller rock sample with mercury injection capillary pressure to obtain a capillary pressure distribution of the at least one smaller rock sample. The method further includes decomposing a Tdistribution from the nuclear magnetic resonance testing and the capillary pressure distribution using Gaussian fitting to identify multiple pore systems, where the small ends of the Gaussian fitted Tdistribution and the Gaussian fitted capillary pressure distribution are overlapped for at least one of the identified pore systems.


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