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:
Oct. 08, 2024

Filed:

May. 10, 2023
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Zuhair Alyousef, Dhahran, SA;

Hamoud Alqahtani, Dhahran, SA;

Subhash C. Ayirala, Dhahran, SA;

Muhammad M. Almajid, Dhahran, SA;

Ali A. Al-Taq, Dhahran, SA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/16 (2006.01); E21B 43/24 (2006.01);
U.S. Cl.
CPC ...
E21B 43/164 (2013.01); E21B 43/24 (2013.01);
Abstract

Enhanced hydrocarbon recovery methods may include use of carbonated aqueous fluids. Methods for enhanced hydrocarbon recovery may include: introducing a carbonated aqueous fluid into a subterranean reservoir, the carbonated aqueous fluid including carbon dioxide; introducing a first salt solution and a second salt solution into the subterranean reservoir after introducing the carbonated aqueous fluid; contacting the first salt solution with the second salt solution in the subterranean reservoir under conditions where the first salt and the second salt undergo an exothermic reaction; and heating the carbonated aqueous fluid with heat produced via the exothermic reaction; wherein at least a portion of the carbon dioxide is released from the carbonated aqueous fluid upon heating and migrates from a lower portion to an upper portion of the subterranean reservoir, and a decarbonated saline solution is generated from the carbonated aqueous fluid from which the carbon dioxide is released.


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