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:
Oct. 23, 2012
Filed:
Aug. 19, 2010
Applicants:
Curtis Bay Campbell, Hercules, CA (US);
Yat Fan Suen, Pinole, CA (US);
Inventors:
Curtis Bay Campbell, Hercules, CA (US);
Yat Fan Suen, Pinole, CA (US);
Assignee:
Chevron Oronite Company LLC, San Ramon, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 8/60 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention is directed to an enhanced oil recovery composition comprising (a) a surfactant comprising an alkylated hydroxyaromatic sulfonate having the general formula: wherein Ris an alkyl group containing from about 8 to 40 carbon atoms and having from about 20% to about 50% methyl branching, and M is a mono-valent cation; (b) a solvent; (c) a passivator; and (d) a polymer.