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:
Mar. 21, 2017
Filed:
Jan. 25, 2013
Rhodia Operations, Paris, FR;
Institut Francais Du Petrole, Rueil-Malmaison, FR;
Mikel Morvan, Pessac, FR;
Patrick Moreau, Bordeaux, FR;
René Tabary, Rueil-Malmaison, FR;
Brigitte Bazin, Rueil-Malmaison, FR;
RHODIA OPERATIONS, Aubervilliers, FR;
INSTITUT FRANCAIS DU PETROLE, Rueil-Malmaison, FR;
Abstract
Provided is a process of enhanced oil recovery from an oil reservoir of an underground formation by using a compound of formula (I) to inhibit the phenomena of retention of anionic surfactants within an oil-bearing reservoir, such as a carbonate or clay reservoir: R—O—(—CH—CH(—CH)—O—)—(—CH—CH—O—)—H, wherein: R is a hydrocarbon-based group comprising from 6 to 40 carbons; m ranges from 0 to 20; n is greater than m and ranges from 5 to 40.