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:
Dec. 02, 2025

Filed:

Oct. 17, 2023
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Marwah Mufid Alsinan, Al Qatif, SA;

Abdulaziz S. Al-Qasim, Dammam, SA;

Jun Gao, Dhahran, SA;

Zuhair A. Yousif, Saihat, SA;

Mustafa R. Satrawi, Anak, SA;

Hyung Kwak, Dhahran, SA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 24/08 (2006.01); E21B 49/08 (2006.01);
U.S. Cl.
CPC ...
E21B 49/088 (2013.01); G01N 24/081 (2013.01);
Abstract

Described is a method for evaluating oil recovery. The method includes performing a pre-coreflood process, a coreflood process, and a post-coreflood process. The pre-coreflood process includes preparing heterogenous cores samples with different structural configurations. The coreflood process includes injecting a treatment into the core samples and obtaining nuclear magnetic resonance (NMR) measurements of the treated core samples. NMR measurements are compared to assess performance of the treatment. The post-coreflood process includes conducting an X-ray micro-computerized topography (CT) scan and a Saturate, Aromatic, Resin, and Asphaltene (SARA) analysis on the treated core samples.


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