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. 16, 2024
Filed:
Feb. 10, 2022
Chevron U.s.a. Inc., San Ramon, CA (US);
Robert George Shong, Houston, TX (US);
Varadarajab Dwarakanath, Houston, TX (US);
Gregory A. Winslow, Houston, TX (US);
Sophany Thach, Houston, TX (US);
Abstract
The present disclosure relates to the use of a multicarboxylate, such as an alkyl alkoxy dicarboxylate, in enhanced oil recovery processes. Embodiments relate to an aqueous stream and the use thereof. The aqueous stream includes a compound having the chemical formula: R—R—R, wherein Rincludes a branched or unbranched, saturated or unsaturated, cyclic or non-cyclic, hydrophobic carbon chain having an oxygen atom linking Rand R; Rincludes an alkoxylated chain comprising ethylene oxide, propylene oxide, butylene oxide, or a combination thereof; and Rincludes a branched or unbranched hydrocarbon chain and 2-5 —COOH or —COOM groups wherein M is a monovalent, divalent, or trivalent cation. Rincludes 2-12 carbon atoms.