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. 24, 1976
Filed:
Sep. 13, 1973
Applicant:
Inventors:
Larry J Douglas, Denver, CO (US);
Charles B Wenger, Denver, CO (US);
Assignee:
Marathon Oil Company, Findlay, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
252 / ; 166274 ; 166275 ; 252309 ; 252312 ;
Abstract
Micellar systems having maximum zeta potential are utilized for the recovery of petroleum. The invention involves the discovery that, on varying the composition of micellar systems, the point of maximum zeta potential corresponds with the point of minimum sulfonate adsorption, e.g., on the formation rocks, and also corresponds with the point of maximum oil recovery by said micellar system.