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:
Dec. 10, 2019
Filed:
Aug. 02, 2017
Chevron U.s.a. Inc., San Ramon, CA (US);
Douglas G. Naae, Sugar Land, TX (US);
Gregory A. Winslow, Houston, TX (US);
Varadarajan Dwarakanath, Houston, TX (US);
Taimur Malik, Houston, TX (US);
Gayani Pinnawala Arachchilage, Houston, TX (US);
CHEVRON U.S.A. INC., San Ramon, CA (US);
Abstract
Provided herein are novel surfactant compositions and methods having application in a variety of fields including enhanced oil recovery, the cleaning industry as well as groundwater remediation. The surfactant compositions are based on lignin bio-oil with a phenol hydroxyl group as the main functional group. The compositions include carboxylic surfactant s and mixed hydrophilic and hydrophobic surfactant structures, which can be used for the recovery of crude oil compositions from challenging reservoirs.