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:
Jun. 09, 2020
Filed:
May. 17, 2018
Instituto Mexicano Del Petroleo, Mexico City, MX;
Jesus Marin Cruz, Mexico City, MX;
Araceli Vega Paz, Mexico City, MX;
Luisa Elena Montiel Sanchez, Mexico City, MX;
Salvador Castillo Cervantes, Mexico City, MX;
Rafael Martinez Palou, Mexico City, MX;
Arquimedes Estrada Martinez, Mexico City, MX;
Luis Manuel Quej Ake, Mexico City, MX;
Jose Luis Rodolfo Benitez Aguilar, Mexico City, MX;
Veronica Sanchez Garcia, Mexico City, MX;
INSTITUTO MEXICANO DEL PETROLEO, Mexico City, MX;
Abstract
Compounds and compositions are used as corrosion inhibitors for pipelines for crude oil containing water with high salt concentrations. The inhibitors are ionic liquids, imidazoles, benzotriazoles, and mixtures thereof. The composition includes two or more members of the inhibitors with a solvent. The inhibitors reduce corrosion of metallic surfaces of the pipelines containing crude oil having 0.2 and 40 wt % water, 10,000 to 70,000 ppm salt, and 9 to 600 ppm hydrogen sulfide. A synergic effect is provided by two or more different inhibitors. This synergy is derived from interactions with the metallic surface, among themselves or with the corrosive medium depending on the chain length, to inhibit the corrosion with decrease of the formulation dose. The composition can be a ternary formulation of the three families or two components of one family and a third component of a different family.