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. 19, 2022
Filed:
Sep. 19, 2018
Basf SE, Ludwigshafen am Rhein, DE;
Christian Bittner, Ludwigshafen am Rhein, DE;
Ashok Kumar Mishra, Singapore, SG;
Kathrin Cohen, Ludwigshafen am Rhein, DE;
Clara Maria Hernandez Morales, Ludwigshafen am Rhein, DE;
Prapas Lohateeraparp, Houston, TX (US);
Hans-Christian Raths, Düsseldorf-Holthausen, DE;
Michael Bueschel, Ludwigshafen am Rhein, DE;
Gabriela Alvarez Juergenson, Ludwigshafen am Rhein, DE;
Thomas Altmann, Ludwigshafen am Rhein, DE;
Benjamin Wenzke, Hamburg, DE;
BASF SE, Ludwigshafen am Rhein, DE;
Abstract
The invention relates to a process for mineral oil production, in which an aqueous saline surfactant formulation comprising a surfactant mixture of at least one anionic surfactant of the general formula R—O—(CHC(CH)HO)—(CHCHO)—SOM and at least one anionic surfactant of the general formula R—O—(CHCHO)—SOM and a base is injected through injection boreholes into a mineral oil deposit, and crude oil is withdrawn from the deposit through production boreholes.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 the surfactant mixture, a concentrate comprising the surfactant mixture and a manufacturing process as well as the use of the surfactant mixture and the con- centrate in the production of mineral oil from underground mineral oil deposits.