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:
Nov. 29, 2016
Filed:
Nov. 01, 2013
Christian Bittner, Bensheim, DE;
Günter Oetter, Frankenthal, DE;
Jack Tinsley, Houston, TX (US);
Christian Spindler, Houston, TX (US);
Gabriela Alvarez-juergenson, Mannheim, DE;
Sophie Maitro-vogel, Mannheim, DE;
Veronika Wloka, Mannheim, DE;
Marcus Guzmann, Mühlhausen, DE;
Christian Bittner, Bensheim, DE;
Günter Oetter, Frankenthal, DE;
Jack Tinsley, Houston, TX (US);
Christian Spindler, Houston, TX (US);
Gabriela Alvarez-Juergenson, Mannheim, DE;
Sophie Maitro-Vogel, Mannheim, DE;
Veronika Wloka, Mannheim, DE;
Marcus Guzmann, Mühlhausen, DE;
BASF SE, Ludwigshafen, DE;
Abstract
The invention relates to a process for mineral oil production by means of Winsor Type III microemulsion flooding, in which an aqueous surfactant formulation comprising 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formula R—O—(CHC(CH)HO)(CHCHO)—XYMis injected through injection boreholes into a mineral oil deposit, and crude oil is withdrawn from the deposit through production boreholes. The invention further relates to ionic surfactants of the general formula.