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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.

Patent No.:

US 10961831 B1

PDFFull Text
Date of Patent:
Mar. 30, 2021

Filed:

Sep. 23, 2019

Polymer flooding processes for viscous oil recovery in carbonate reservoirs

Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Subhash Chandrabose Ayirala, Dhahran, SA;

Abdulkareem M. Al-Sofi, Dhahran, SA;

Ali Abdallah Al-Yousef, Dhahran, SA;

Jinxun Wang, Dhahran, SA;

Assignee:

SAUDI ARABIAN OIL COMPANY;

Attorneys:

Bracewell LLP

Constance R. Rhebergen

Primary Examiner:

Jeffrey D Washville

Int. Cl.
CPC ...
E21B 43/20 (2006.01); C09K 8/588 (2006.01); C09K 8/594 (2006.01); E21B 4/16 (2006.01); E21B 43/16 (2006.01);
U.S. Cl.
CPC ...
E21B 43/20 (2013.01); C09K 8/588 (2013.01); C09K 8/594 (2013.01); E21B 43/164 (2013.01);
Abstract

A composition for use in a polymer flooding operation in a viscous oil containing carbonate reservoir formation with in situ rock is provided. The composition includes a polymer, the polymer operable to increase the viscosity of the composition; and a tuned water, the tuned water operable to alter a wettability of the in situ rock, wherein the tuned water has a total dissolved solids of between 5,000 ppm by weight and 7,000 ppm by weight, wherein the total dissolved solids comprises one or more salts; wherein the composition has a viscosity between 4 cP and 100 cP.

Find Patent Forward Citations

Ayirala, Subhash. (2021). Polymer flooding processes for viscous oil recovery in carbonate reservoirs (U.S. Patent No. 10961831). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10961831

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