Patents by Inventor Raul OVIEDO ROA
Raul OVIEDO ROA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230399576Abstract: The present invention relates to supramolecular surfactants (SS) with detergent-dispersant of heavy organic compounds (deposits and/or organic scales) and corrosion inhibition properties, and methods for preparing these surfactants. The invention also relates to the corresponding uses and applications of these surfactants to prevent and control the formation of deposits in internal combustion machines, as well as to prevent and protect pipelines, tanks, motors and complements of ferrous materials against corrosion where there is contact with liquid hydrocarbons such as gasoline, turbosine, and diesel, where gasoline may contain oxygenated compounds such as ethers and/or alcohols. The supramolecular surfactants are obtained from the self-assembly process between oxazolidines derived from polyalkyl/polyalkenyl N-hydroxyalkyl succinimides with alkyl/alkenyl-amine-propanoic acids and alkyl/alkenyl-amine-di-propanoic acids.Type: ApplicationFiled: June 2, 2023Publication date: December 14, 2023Inventors: Ricardo Cerón Camacho, Raúl Oviedo Roa, Jorge Francisco Ramírez Pérez, Enrique Soto Castruita, Rodolfo Cisneros Dévora, David Aaron Nieto Álvarez, José Manuel Martínez Magadan, Ana Graciela Servín Nájera, Luis Silvestre Zamudio Rivera
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Patent number: 11014875Abstract: The present disclosure is related to obtaining and using sulfobetaine and hydroxysultaine-based geminal zwitterionic liquids as wettability modifiers for rocks such as limestone, dolomite, sandstone, quartz or heterogeneous lithologies, under the presence of brines having high content of divalent ions as calcium, magnesium, barium and strontium, at high temperature and high pressure conditions for enhanced oil recovery processes to increase the oil production. The geminal zwitterionic liquids of the present disclosure have also the property of acting as corrosion inhibitors of ferrous metals used in pipelines and equipment for crude oil extraction, production, transport and storage operations. A further advantage shown by zwitterionic liquids derived from their molecular structure is they can be dissolved in distilled water, brine, hydrocarbon solvents, aromatics and alcohols.Type: GrantFiled: November 27, 2015Date of Patent: May 25, 2021Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Raül Hernandez Altamirano, Violeta Yasmin Mena Cervantes, Luis Silvestre Zamudio Rivera, César Andrés Flores Sandoval, Alejandro Ramírez Estrada, Rodolfo Cisneros Devora, José Manuel Martínez Magadan, Raúl Oviedo Roa, Jorge Francisco Ramírez Pérez
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Patent number: 10968381Abstract: The present invention is related with the obtaining process and use of branched germinal zwitterionic liquids based on either bis-N,N-dialkyl-N-polyether-betaine or bis-N,N-dialkenyl-N-polyether-betaine or bis-N,N-dicycloalkyl-N-polyether-betaine or bis-N,N-diaryl-N-polyether-betaine, to be applied as modifiers of the wettability of rocks such as limestone, dolomite, sandstone, quartz or heteregenous lithologies, under the presence of brines having high content of divalent ions such as calcium, magnesium, barium or strontium, under high temperature and high pressure within enhanced oil recovery processes in order to increase the oil production. The branched germinal zwitterionic liquids of the present invention have moreover the property to act as viscosity reducers of heavy oils having high content of polar fractions, both for extraction and production, and transport and storage operations, so allowing increase the production level of this oil type.Type: GrantFiled: June 22, 2020Date of Patent: April 6, 2021Assignee: INSTITUTO MEXICANO DEL PETRÓLEOInventors: Jorge Francisco Ramírez Pérez, Raúl Hernández Altamirano, Violeta Yasmin Mena Cervantes, Luis Silvestre Zamudio Rivera, Rodolfo Cisneros Dévora, Raúl Oviedo Roa, Ana Rocío Cartas Rosado, Alejandro Ramírez Estrada
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Publication number: 20200317991Abstract: The present invention is related with the obtaining process and use of branched germinal zwitterionic liquids based on either bis-N,N-dialkyl-N-polyether-betaine or bis-N,N-dialkenyl-N-polyether-betaine or bis-N,N-dicycloalkyl-N-polyether-betaine or bis-N,N-diaryl-N-polyether-betaine, to be applied as modifiers of the wettability of rocks such as limestone, dolomite, sandstone, quartz or heteregenous lithologies, under the presence of brines having high content of divalent ions such as calcium, magnesium, barium or strontium, under high temperature and high pressure within enhanced oil recovery processes in order to increase the oil production. The branched germinal zwitterionic liquids of the present invention have moreover the property to act as viscosity reducers of heavy oils having high content of polar fractions, both for extraction and production, and transport and storage operations, so allowing increase the production level of this oil type.Type: ApplicationFiled: June 22, 2020Publication date: October 8, 2020Inventors: Jorge Francisco RAMÍREZ PÉREZ, Raúl HERNÁNDEZ ALTAMIRANO, Violeta Yasmín MENA CERVANTES, Luis Silvestre ZAMUDIO RIVERA, Rodolfo CISNEROS DÉVORA, Raúl OVIEDO ROA, Ana Rocío CARTAS ROSADO, Alejandro RAMÍREZ ESTRADA
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Patent number: 10689563Abstract: The present invention is related with the obtaining process and use of branched germinal zwitterionic liquids based on either bis-N,N-dialkyl-N-polyether-betaine or bis-N, N-dialkenyl-N-polyether-betaine or bis-N, N-dicycloalkyl-N-polyether-betaine or bis-N,N-diaryl-N-polyether-betaine, to be applied as modifiers of the wettability of rocks such as limestone, dolomite, sandstone, quartz or heterogeneous lithologies, under the presence of brines having high content of divalent ions such as calcium, magnesium, barium or strontium, under high temperature and high pressure within enhanced oil recovery processes in order to increase the oil production. The branched germinal zwitterionic liquids of the present invention have moreover the property to act as viscosity reducers of heavy oils having high content of polar fractions, both for extraction and production, and transport and storage operations, so allowing increase the production level of this oil type.Type: GrantFiled: May 21, 2015Date of Patent: June 23, 2020Assignee: INSTITUTO MEXICANO DEL PETRÓLEOInventors: Jorge Francisco Ramírez Pérez, Raúl Hernández Altamirano, Violeta Yasmín Mena Cervantes, Luis Silvestre Zamudio Rivera, Rodolfo Cisneros Dévora, Raúl Oviedo Roa, Ana Rocío Cartas Rosado, Alejandro Ramírez Estrada
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Patent number: 10457863Abstract: The present invention refers to the formulation of a foaming agent for extreme conditions of salinity, temperature and concentration of divalent ions, including the improvement in the performance in these conditions with respect to the patent MX2008015989 A. Also, the design is presented of the experimental equipment used to characterize and evaluate foaming agents at laboratory level and conditions of pressure, temperature and salinity, in oil fields. The formulation of the foaming agent derived from this invention is a mixture of sodium alpha olefin sulfonates, alkylamido propyl betaines and triethanolamine, capable of giving it the benefit of being stable in temperature and salinity in a wide range, diluted in synthetic and congenital brines. This formulation is applicable for the control of gas mobility and improved oil recovery processes in naturally fractured reservoirs.Type: GrantFiled: December 13, 2017Date of Patent: October 29, 2019Assignee: INSTITUTO MEXICANO DEL PETRÓLEOInventors: Alejandro Ortega Rodríguez, Norma Araceli García Muñoz, José Manuel Martínez Magadán, Raúl Oviedo Roa, Sonia Ángeles Martínez Reyes, Marco Antonio Vélez Domínguez, Maribel Amador Ramírez, Ana Patricia Medina Montiel, Nansy Mónica Sánchez Casas, Elizabeth Cervantes Flores, Agustín Durán Álvarez, Simón López Ramírez, Cecilia de los Ángeles Durán Valencia
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Publication number: 20180171215Abstract: The present invention refers to the formulation of a foaming agent for extreme conditions of salinity, temperature and concentration of divalent ions, including the improvement in the performance in these conditions with respect to the patent MX2008015989 A. Also, the design is presented of the experimental equipment used to characterize and evaluate foaming agents at laboratory level and conditions of pressure, temperature and salinity, in oil fields. The formulation of the foaming agent derived from this invention is a mixture of sodium alpha olefin sulfonates, alkylamido propyl betaines and triethanolamine, capable of giving it the benefit of being stable in temperature and salinity in a wide range, diluted in synthetic and congenital brines. This formulation is applicable for the control of gas mobility and improved oil recovery processes in naturally fractured reservoirs.Type: ApplicationFiled: December 13, 2017Publication date: June 21, 2018Inventors: Alejandro ORTEGA RODRÍGUEZ, Norma Araceli GARCÍA MUÑOZ, José Manuel MARTÍNEZ MAGADÁN, Raúl OVIEDO ROA, Sonia Ángeles MARTÍNEZ REYES, Marco Antonio VÉLEZ DOMÍNGUEZ, Maribel AMADOR RAMÍREZ, Ana Patricia MEDINA MONTIEL, Nansy Mónica SÁNCHEZ CASAS, Elizabeth CERVANTES FLORES, Agustín DURÁN ÁLVAREZ, Simón LÓPEZ RAMÍREZ, Cecilia de los Ángeles DURÁN VALENCIA
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Publication number: 20170335171Abstract: The present invention is related with the obtaining process and use of branched germinal zwitterionic liquids based on either bis-N,N-dialkyl-N-polyether-betaine or bis-N, N-dialkenyl-N-polyether-betaine or bis-N, N-dicycloalkyl-N-polyether-betaine or bis-N,N-diaryl-N-polyether-betaine, to be applied as modifiers of the wettability of rocks such as limestone, dolomite, sandstone, quartz or heteregenous lithologies, under the presence of brines having high content of divalent ions such as calcium, magnesium, barium or strontium, under high temperature and high pressure within enhanced oil recovery processes in order to increase the oil production. The branched germinal zwitterionic liquids of the present invention have moreover the property to act as viscosity reducers of heavy oils having high content of polar fractions, both for extraction and production, and transport and storage operations, so allowing increase the production level of this oil type.Type: ApplicationFiled: May 21, 2015Publication date: November 23, 2017Inventors: Jorge Francisco RAMÍREZ PÉREZ, Raúl HERNÁNDEZ ALTAMIRANO, Violeta Yasmín MENA CERVANTES, Luis Silvestre ZAMUDIO RIVERA, Rodolfo CISNEROS DÉVORA, Raúl OVIEDO ROA, Ana Rocío CARTAS ROSADO, Alejandro RAMÍREZ ESTRADA
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Publication number: 20170320817Abstract: The present invention is related to obtaining and using sulfobetaine and hidroxisultaine-based geminal zwitterionic liquids as wettability modifiers for rocks such as limestone, dolomite, sandstone, quartz or heterogeneous lithologies, under the presence of brines having high content of divalent ions as calcium, magnesium, barium and strontium, at high temperature and high pressure conditions for enhanced oil recovery processes to increase the oil production. The geminal zwitterionic liquids of the present invention have also the property of acting as corrosion inhibitors of ferrous metals used in pipelines and equipment for crude oil extraction, production, transport and storage operations. A further advantage shown by zwitterionic liquids derived from their molecular structure is they can be dissolved in distilled water, brine, hydrocarbon solvents, aromatics and alcohols.Type: ApplicationFiled: November 27, 2015Publication date: November 9, 2017Inventors: Raúl HERNÁNDEZ ALTAMIRANO, Violeta Yasmín MENA CERVANTES, Luis Silvestre ZAMUDIO RIVERA, César Andrés FLORES SANDOVAL, Alejandro RAMÍREZ ESTRADA, Rodolfo CISNEROS DEVORA, José Manuel MARTÍNEZ MAGADAN, Raúl OVIEDO ROA, Jorge Francisco RAMÍREZ PÉREZ
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Patent number: 9469804Abstract: 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.Type: GrantFiled: November 25, 2013Date of Patent: October 18, 2016Assignee: INSTITUTO MEXICO DEL PETROLEOInventors: Raul Hernandez Altamirano, Luis Silvestre Zamudio Rivera, Violeta Yasmin Mena Cervantes, Erick Emanuel Luna Rojero, Enrique Serrano Saldana, Jose Manuel Martinez Magadan, Raul Oviedo Roa, David Aaron Nieto Alvarez, Eduardo Buenrostro Gonzalez, Rodolfo Cisneros Devora, Maria del Pilar Arzola Garcia, Mirna Pons Jimenez, America Elizabeth Mendoza Aguilar, Sung Jae Ko Kim, Jorge Francisco Ramirez Perez, Tomas Eduardo Chavez Miyauchi, Yosadara Ruiz Morales
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Publication number: 20140151041Abstract: The present invention relates to a method of obtaining and using foaming compositions with wettability-modifying and corrosion inhibitory properties that 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.Type: ApplicationFiled: November 25, 2013Publication date: June 5, 2014Inventors: Raul HERNANDEZ ALTAMIRANO, Luis Silvestre ZAMUDIO RIVERA, Violeta Yasmin MENA CERVANTES, Erick Emanuel LUNA ROJERO, Enrique SERRANO SALDANA, Jose Manuel MARTINEZ MAGADAN, Raul OVIEDO ROA, David Aaron NIETO ALVAREZ, Eduardo BUENROSTRO GONZALEZ, Rodolfo CISNEROS DEVORA, Maria del Pilar ARZOLA GARCIA, Mirna PONS JIMENEZ, America Elizabeth MENDOZA AGUILAR, Sung Jae Ko KIM, Jorge Francisco RAMIREZ PEREZ, Tomas Eduardo CHAVEZ MIYAUCHI