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:
May. 27, 2025

Filed:

Apr. 26, 2024
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Otto Meza Camargo, Dhahran, SA;

Waheed Arshad, Dhahran, SA;

Karla Olvera Carranza, Dhahran, SA;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 49/00 (2006.01); E21B 43/26 (2006.01);
U.S. Cl.
CPC ...
E21B 49/008 (2013.01); E21B 43/26 (2013.01); E21B 2200/20 (2020.05);
Abstract

A determination of caprock integrity in naturally fractured reservoirs for fluid injection such as carbon capture and storage (CCS). The caprock integrity and seal integrity is determined via a fracture reactivation index (FRI). A mechanical earth model is determined to quantify the minimum principal in-situ stress in the caprock to determine the injection pressure limits and safeguard against undesired breakthrough into adjacent zones. A fracture model is generated using the mechanical earth model, and a critical stress analysis may be performed. After determination of a fracture density index and Coulomb Excessive Failure Function (CEFF), the fracture reactivation index (FRI) is determined.


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