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:
Jul. 23, 2024

Filed:

Nov. 23, 2021
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Mohammed Abbad, Dhahran, SA;

Muhammad Majid Almajid, Qatif, SA;

Hussain Jeshi, Dhahran, SA;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 47/11 (2012.01); G01N 13/00 (2006.01); G01N 15/08 (2006.01); G01N 33/24 (2006.01);
U.S. Cl.
CPC ...
E21B 47/11 (2020.05); G01N 13/00 (2013.01); G01N 15/0806 (2013.01); G01N 33/24 (2013.01);
Abstract

A method includes developing a lab-scale representative correlation between wettability index and tracer test return curve data for core samples, obtaining tracer test return curve data for rock at a well of interest, and determining a wettability index of the rock in situ using the representative correlation and the tracer test return curve data for the well. A method includes obtaining core samples of a rock representative of a formation of interest, determining a wettability index of each of the core samples, performing a tracer test on each of the core samples and obtaining tracer return curve data for each of the core samples, building a correlation between the wettability index and the tracer return curve data of the core samples, running a single-well tracer test at a well, obtaining tracer return curve data for the well, and determining a wettability index for the rock of the well.


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