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. 23, 2018
Filed:
Dec. 19, 2014
Total SA, Courbevoie, FR;
Universite Lyon 1, Villeurbanne, FR;
Centre National DE LA Recherche Scientifique-cnrs-, Paris, FR;
Christian Hurtevent, Pau, FR;
Salima Baraka-Lokmane, Pau, FR;
John-Richard Ordonez-Varela, Lons, FR;
Olivier Tillement, Fontaines Saint-Martin, FR;
Fabien Rossetti, Lyons, FR;
Mahmoud Ould Metidji, Marseilles, FR;
TOTAL SA, Courbevoie, FR;
UNIVERSITE LYON 1, Villeurbanne, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), Paris, FR;
Abstract
A copolymer containing a unit including an optionally neutralized styrene sulphonic acid unit and a unit containing at least one optionally neutralized (poly)carboxylic acid unit or a (poly)amido-amine unit, to inhibit or slow the formation of sulphide deposits during the extraction of gas or oil. It also relates to a method to inhibit or slow the formation of sulphide deposits during the extraction of gas or oil, including the injection of a fluid containing the abovementioned copolymer into a wellbore, a subterranean formation or a gas or oil well.