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:
Jul. 20, 2021
Filed:
Aug. 11, 2020
Applicant:
Saudi Arabian Oil Company, Dhahran, SA;
Inventors:
Ayrat Gizzatov, Cambridge, MA (US);
Chang Da, Cambridge, MA (US);
Amr Abdel-Fattah, Dhahran, SA;
Shitong Zhu, Cambridge, MA (US);
Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 43/20 (2006.01); C09K 8/584 (2006.01);
U.S. Cl.
CPC ...
C09K 8/584 (2013.01); C09K 2208/10 (2013.01);
Abstract
Embodiments of the disclosure provide compositions and methods suitable for injection of a nanosurfactant composition into a hydrocarbon-bearing formation for enhanced recovery operations. The nanosurfactant composition includes nanoassemblies that contain a petroleum sulfonate surfactant, mineral oil, a zwitterionic co-surfactant. The nanosurfactant composition also includes a functionalized zwitterionic copolymer present in an aqueous environment.