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. 01, 2024

Filed:

Mar. 03, 2023
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Abdulaziz S. Al-Qasim, Dammam, SA;

Yuguo Wang, Dhahran, SA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/16 (2006.01); C09K 8/594 (2006.01);
U.S. Cl.
CPC ...
C09K 8/594 (2013.01);
Abstract

A composition includes a carbon dioxide (CO) emulsion including a continuous critical or supercritical COphase and a discontinuous phase including a polyacrylate. A method of making a COemulsion includes providing a first solution of a polyacrylic acid and critical or supercritical CO, providing a second solution of a base and critical or supercritical CO, and mixing the first solution and the second solution such that the polyacrylic acid and the base react to form an emulsion of polyacrylate droplets in critical or supercritical CO. A method of treating a hydrocarbon-bearing formation includes introducing an emulsion including a continuous COphase and a discontinuous phase comprising a polyacrylate into the formation, contacting the emulsion with an aqueous reservoir fluid in the hydrocarbon-bearing formation, and absorbing an amount of the aqueous reservoir fluid into the polyacrylate of the emulsion to provide a dense COemulsion.


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