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:
Feb. 24, 2026

Filed:

Jan. 09, 2024
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Pramod Dhanaji Patil, Sugar Land, TX (US);

Abdulaziz S. Al-Qasim, Dammam, SA;

Ali A. Yousef, Dhahran, SA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 41/00 (2006.01); C09K 8/52 (2006.01);
U.S. Cl.
CPC ...
E21B 41/0064 (2013.01); C09K 8/52 (2013.01);
Abstract

Methods and compositions for carbon dioxide (CO) sequestration in a wellbore. A method includes locating a lost circulation zone in the wellbore during drilling. Methods may further include flushing drilling mud from the wellbore to prepare the lost circulation zone for lost circulation mitigation and injecting a cleaning solution into the wellbore. Then, injecting a composition for COsequestration into the wellbore, where the composition may include a brine solution, an alkali and/or an alkaline compound, and a catalyst. The method may further include injecting a volume of COinto the wellbore, mineralizing the alkali and/or the alkaline compound and the volume of COto produce an alkali and/or alkaline carbonate compound, injecting drilling mud into the wellbore and resuming drilling operations.


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