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. 15, 2019
Filed:
Nov. 17, 2015
Instituto Mexicano Del Petróleo, Mexico City, MX;
Violeta Yázmin Mena Cervantes, México, D.F., MX;
Raúl Hernández Altamirano, México, D.F., MX;
Luis Silvestre Zamudio Rivera, México, D.F., MX;
Alejandro Ramírez Estrada, México, D.F., MX;
Jorge Francisco Ramírez Pérez, México, D.F., MX;
José Manuel Martínez Magadan, México, D.F., MX;
Rodolfo Cisneros Devora, México, D.F., MX;
INSTITUTO MEXICANO DEL PETRÓLEO, Mexico City, MX;
Abstract
The present invention is related to the obtaining and use of zwitterionic geminal liquids based on hydroxypropyl betaine, as wettability modifiers of rocks such as limestone, dolomite, sandstone, quartz or heterogeneous lithologies, in the presence of brines with high content of divalent ions as calcium, magnesium, barium and strontium, at high temperature and high pressure conditions during the application of enhanced oil recovery processes. The zwitterionic geminal liquids based hydroxypropyl betaine of the present invention have also the property of acting as inhibitors/dispersing of asphaltenes, both at extraction and production operations of petroleum industry, thus allowing to increase the level of crude oil production. An additional advantage presented by zwitterionic geminal liquid based on hydroxypropyl betaine which can be dissolved in distilled water, brine, aliphatic hydrocarbons or other polar and nonpolar solvents.