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. 03, 2013
Filed:
Mar. 09, 2011
Christian Bittner, Bensheim, DE;
Günter Oetter, Frankenthal, DE;
Jack Tinsley, Mannheim, DE;
Christian Spindler, Ludwigshafen, DE;
Gabriela Alvarez-jürgenson, Mannheim, DE;
Sophie Vogel, Mannheim, DE;
Veronica Wloka, Mannheim, DE;
Marcus Guzmann, Mühlhausen, DE;
Christian Bittner, Bensheim, DE;
Günter Oetter, Frankenthal, DE;
Jack Tinsley, Mannheim, DE;
Christian Spindler, Ludwigshafen, DE;
Gabriela Alvarez-Jürgenson, Mannheim, DE;
Sophie Vogel, Mannheim, DE;
Veronica Wloka, Mannheim, DE;
Marcus Guzmann, Mühlhausen, DE;
BASF SE, Ludwigshafen, DE;
Abstract
A process for mineral oil production by means of Winsor Type III microemulsion flooding and an aqueous surfactant formulation are disclosed. The aqueous surfactant formulation containing at least one ionic surfactant of the general formula R—O—(CHC(CH)HO)(CHCHO)—XYMis injected through injection boreholes into a mineral oil deposit, and crude oil is withdrawn from the deposit through production boreholes.