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:
Oct. 19, 2021
Filed:
Dec. 20, 2017
S.p.c.m. SA, Andrezieux Boutheon, FR;
Poweltec, Rueil-Malmaison, FR;
Cédrick Favero, Andrezieux Boutheon, FR;
Olivier Braun, Andrezieux Boutheon, FR;
Elvire Tognisso, Andrezieux Boutheon, FR;
Alain Zaitoun, Paris, FR;
Nazanin Salehi, Paris, FR;
Jérôme Bouillot, Carrieres sur Seine, FR;
S.P.C.M. SA, Andrezieux Boutheon, FR;
POWELTEC, Rueil-Malmaison, FR;
Abstract
The present invention relates to a method for enhanced oil recovery by flushing an underground formation, comprising the injection into the underground formation of an aqueous composition comprising microgels having at least one crosslinked polymer, characterized in that the polymer is crosslinked with at least one crosslinking agent capable of being degraded under the temperature conditions of the underground formation, and a content of crosslinking agent between 1 and 90 ppm per mole with respect to the total number of moles of monomer constituting the polymer.