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.:
Date of Patent:
Aug. 03, 2021
Filed:
Sep. 24, 2019
Applicant:
Saudi Arabian Oil Company, Dhahran, SA;
Inventors:
Assignee:
Saudi Arabian Oil Company, Dhahran, SA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/68 (2006.01); C02F 1/52 (2006.01); C09K 8/03 (2006.01); C09K 8/60 (2006.01); C09K 8/74 (2006.01); C09K 8/88 (2006.01); C09K 8/508 (2006.01); C09K 8/506 (2006.01); C09K 8/86 (2006.01); C02F 103/08 (2006.01); C02F 101/10 (2006.01);
U.S. Cl.
CPC ...
C09K 8/68 (2013.01); C02F 1/5236 (2013.01); C09K 8/03 (2013.01); C09K 8/602 (2013.01); C09K 8/604 (2013.01); C02F 2101/101 (2013.01); C02F 2103/08 (2013.01); C02F 2305/04 (2013.01); C09K 8/506 (2013.01); C09K 8/508 (2013.01); C09K 8/74 (2013.01); C09K 8/86 (2013.01); C09K 8/88 (2013.01); C09K 2208/10 (2013.01); C09K 2208/30 (2013.01);
Abstract
Embodiments of the present disclosure are directed to a method of producing a viscoelastic surfactant (VES) fluid, the VES fluid comprising desulfated seawater. The method of producing the VES fluid comprises adding an alkaline earth metal halide to seawater to produce a sulfate precipitate. The method further comprises removing the sulfate precipitate to produce the desulfated water. The method further comprises adding a VES and one or more of a nanoparticle viscosity modifier or a polymeric modifier to the desulfated seawater. Other embodiments are directed to VES fluids that maintain a viscosity greater than 10 cP at temperatures above 250° F.