Instituto Mexicano Del Petroleo

Eduardo Buenrostro Gonzalez

Luis Silvestre Zamudio Rivera

Violeta Yasmin Mena Cervantes

Raul Hernandez Altamirano

Hiram Isaac Beltran Conde

Simon Lopez Ramirez

Marcelo Lozada Y Cassou

Youri Douda

Adela Morales Pacheco

Cecilia De Los Angeles Duran Valencia

Eugenio Alejandro Flores Oropeza

José Manuel Martínez Magadan

Mirna Pons Jiménez

Jorge Francisco Ramírez Pérez

Raúl Oviedo Roa

Erick Emanuel Luna Rojero

Simón López Ramírez

Rodolfo Cisneros Devora

Yosadara Ruiz Morales

Sung Jae Ko Kim

David Aaron Nieto Alvarez

Maria Del Pilar Arzola Garcia

Jose Luis Mendoza De La Cruz

Alejandro Ortega Rodriguez

Jorge Alberto Garcia Martinez

Enrique Serrano Saldana

America Elizabeth Mendoza Aguilar

Tomas Eduardo Chavez Miyauchi

Mariana Barcenas Castaneda

Hiram Issac Beltran Conde

Maria Del Arzola Garcia

Sung Jae Kim

Norma Araceli Garcia Munoz

Alfredo Rios Reyes

Violeta Yasmin Mena Cervantez

Oxazolidines, a process for producing the oxazolidines, and use as additives for fuels to prevent and control deposits in internal combustion engines are disclosed. The oxazolidines are derived from polyalkyl or polyalkenyl N-hydroxyalkyl succinimides and have the structural formula wherein:

Oxazolidines derived from polyalkyl or polyalkenyl n-hydroxyalkyl succinimides, obtainment process and use

Base compounds including 1,3-oxazinan-6-one derivatives of N-alkyl or N-alkenyl or N-cycloalkyl or N-aryl propionic acids and paraformaldehyde, and their application as corrosion inhibitors with multifunctional properties serving as inhibitory/dispersant of asphaltene in production processes, transportation, refining and storage of crude oil and derivatives. The corrosion inhibitor with inhibitory/dispersant of asphaltenes properties comprises an active substance base of 1,3-oxaninan-6-ones and hydrocarbon solvents such as benzene, toluene, mixed xylenes, o-xylene, m-xylene and p-xylene, diesel, kerosene, jet fuel, alcohols, aliphatic branched and unbranched alcohols containing from 3 to 10 carbon atoms, such as isopropanol, butanol and pentanol, and mixtures of hydrocarbon solvents with aliphatic branched or unbranched liquid fuels. In addition, a process for obtaining 1,3-oxazinan-6-ones derivatives of N-alkyl or N-alkenyl or N-cycloalkyl or N-aryl propionic acids and paraformaldehyde is described.

Multifunctional composition base 1,3-oxazinan-6-ones with corrosion inhibition and heavy organic compounds inhibition and dispersants and obtaining process

A foaming composition with wettability-modifying and corrosion inhibitory properties is used to control the channeling of fluids in naturally fractured carbonate reservoirs, favorably alter the rock wettability in crude oil enhanced recovery processes and control uniform corrosion problems occurring in production rigs under high temperature and ultra-high salinity conditions by the synergistic effect resulting from the supramolecular interaction of alkyl amido propyl hydroxysultaines or alkyl hydroxysultaines with sodium alkyl hydroxysulfonates and sodium alkenyl sulfonates having the formula (1). The foaming compositions with wettability-modifying and corrosion inhibitory properties are tolerant to high concentrations of divalent ions such as calcium, magnesium, strontium and barium and are suitable for use in the reservoir, seawater and/or congenital water characteristic of the reservoir for transporting the crude oil from the reservoir.

Foaming composition with wettability modifying and corrosion inhibitory properties for high temperature and ultra-high salinity

The present invention relates to formulations of asphaltenes' inhibitor-dispersant additives based on oxazolidine derived from polyalkyl or polyalkenyl N-hydroxyalkyl succinimides. Said formulations can contain inert organic solvents, preferably including: toluene, mixtures of xylene, o-xylene, p-xylene, kerosene, turbo-fuel; or inert hydrocarbon solvents having boiling points within the range of gasoline and diesel; or inert hydrocarbon or organic solvents having a boiling point within a range from 75 to 300&#xb0; C. The ratio in weight of inert organic solvents to additive that prevents and controls the precipitation and deposition of asphaltenes ranges from 1:9 to 9:1, preferably from 1:3 to 3:1.

Asphaltene-dispersing/inhibiting additive based on oxazolidines derived from polyalkyl or polyalkenyl N-hydroxyalkyl succinimides

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Mexico City, Mexico

Eduardo Buenrostro Gonzalez