Patents by Inventor Raúl HERNÁNDEZ ALTAMIRANO
Raúl HERNÁNDEZ ALTAMIRANO 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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Patent number: 11384187Abstract: The present invention is related to the process of obtaining random terpolymers based on itaconic acid or its isomers, aconitic acid or their isomers and sodium alkenyl sulphonates, through a polymerization in aqueous solution, via free radicals at acid pH in the range of 1.0 to 3.5 and as initiator a redox system. The random terpolymers are characterized for being tolerant to high concentrations of divalent ions, such as calcium, magnesium, strontium and barium. Their use as inhibitors of mineral scale such as calcium carbonate, calcium sulphate, strontium and barium, and clay dispersing, iron oxides, carbonate and calcium sulfate allows for their application in the reservoir or production rig, treated water, sea water and/or connate water can be used as means of transportation. The terpolymer can be used to inhibit and disperse mineral scales present in cooling system and boiler employed in the chemical and oil industry, and is compliant with environmental standards established internationally.Type: GrantFiled: March 13, 2015Date of Patent: July 12, 2022Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Mirna Pons Jiménez, Raúl Hernández Altamirano, José Manuel Martínez Magadan, Alejandro Ramirez Estrada, Luis Silvestre Zamudio Rivera
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Patent number: 11149185Abstract: The present invention is related to the obtaining and using of multifunctional foaming compositions with wettability modifying, corrosion inhibitory and inhibitory/dispersants mineral scale properties with high stability in environments of high temperature, high pressure and tolerance to high concentrations of divalent ions such as calcium, magnesium, strontium and barium. The multifunctional foaming compositions are obtained from the combination of supramolecular complexes resulting from interactions of alkyl amido propyl hydroxysultaines and/or alkyl amido propyl betaines and/or alkyl hydroxysultaines and/or alkyl betaines and anionic surfactant of type alkyl hydroxyl sodium sulfonate and alkenyl sulphonates of sodium, with cationic surfactants as tetra-alkyl ammonium halides and copolymers derivatives of itaconic acid/sodium vinyl sulfonate and/or terpolymers derived from itaconic acid/sodium vinyl sulphonate/aconitic acid.Type: GrantFiled: February 5, 2020Date of Patent: October 19, 2021Assignee: INSTITUTO MEXICANO DEL PETRÓLEOInventors: Raúl Hernández Altamirano, Luis Silvestre Zamudio Rivera, Violeta Yázmin Mena Cervantes, Erick Emanuel Luna Rojero, David Aarón Nieto Álvarez, Rodolfo Cisneros Devora, Mirna Pons Jiménez, Alejandro Ramírez Estrada, América Elizabeth Mendoza Aguilar, Sung Jae Ko Kim
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Patent number: 11046605Abstract: Random copolymers from itaconic acid and/or isomers and sodium alkenyl sulfonates are obtained by polymerization in an aqueous solution via free radicals at an acidic pH in the range from 1.0 to 3.5 and with a redox system as initiator were described. The copolymers can be used as calcium carbonate and calcium, strontium and barium sulfates mineral scale inhibitors and as dispersants of clays, iron oxides, calcium carbonate and strontium, barium and calcium sulfates. Random copolymers prevent and control damage in an oil reservoir, obstruction of water injection and crude oil production pipelines, and in production rigs due to mineral scale precipitation caused by high levels of salinity of the injection water and formation water. Random copolymers are tolerant to high concentrations of divalent ions, such as calcium, magnesium, strontium and barium, and can be added to the reservoir and to injection or production pipelines, treated water, sea water and water that is used as means of transportation.Type: GrantFiled: October 17, 2019Date of Patent: June 29, 2021Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Raul Hernandez Altamirano, Violeta Yasmin Mena Cervantes, Luis Silvestre Zamudio Rivera, Erick Emanuel Luna Rojero, Jose Manuel Martinez Magadan, David Aaron Nieto Alvarez, Mirna Pons Jimenez, Alejandro Ramirez Estrada, Maria del Pilar Arzola Garcia
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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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Publication number: 20200172791Abstract: The present invention is related to the obtaining and using of multifunctional foaming compositions with wettability modifying, corrosion inhibitory and inhibitory/dispersants mineral scale properties with high stability in environments of high temperature, high pressure and tolerance to high concentrations of divalent ions such as calcium, magnesium, strontium and barium. The multifunctional foaming compositions are obtained from the combination of supramolecular complexes resulting from interactions of alkyl amido propyl hydroxysultaines and/or alkyl amido propyl betaines and/or alkyl hydroxysultaines and/or alkyl betaines and anionic surfactant of type alkyl hydroxyl sodium sulfonate and alkenyl sulphonates of sodium, with cationic surfactants as tetra-alkyl ammonium halides and copolymers derivatives of itaconic acid/sodium vinyl sulfonate and/or terpolymers derived from itaconic acid/sodium vinyl sulphonate/aconitic acid.Type: ApplicationFiled: February 5, 2020Publication date: June 4, 2020Inventors: Raúl HERNÁNDEZ ALTAMIRANO, Luis Silvestre ZAMUDIO RIVERA, Violeta Yázmin MENA CERVANTES, Erick Emanuel LUNA ROJERO, David Aarón NIETO ÁLVAREZ, Rodolfo CISNEROS DEVORA, Mirna PONS JIMÉNEZ, Alejandro RAMÍREZ ESTRADA, América Elizabeth MENDOZA AGUILAR, Sung Jae Ko KIM
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Patent number: 10597578Abstract: The present invention is related to the obtaining and using of multifunctional foaming compositions with wettability modifying, corrosion inhibitory and inhibitory/dispersants mineral scale properties with high stability in environments of high temperature, high pressure and tolerance to high concentrations of divalent ions such as calcium, magnesium, strontium and barium. The multifunctional foaming compositions are obtained from the combination of supramolecular complexes resulting from interactions of alkyl amido propyl hydroxysultaines and/or alkyl amido propyl betaines and/or alkyl hydroxysultaines and/or alkyl betaines and anionic surfactant of type alkyl hydroxyl sodium sulfonate and alkenyl sulphonates of sodium, with cationic surfactants as tetra-alkyl ammonium halides and copolymers derivatives of itaconic acid/sodium vinyl sulfonate and/or terpolymers derived from itaconic acid/sodium vinyl sulphonate/aconitic acid.Type: GrantFiled: March 20, 2018Date of Patent: March 24, 2020Assignee: INSTITUTO MEXICANO DEL PETRÓLEOInventors: Raúl Hernández Altamirano, Luis Silvestre Zamudio Rivera, Violeta Yázmin Mena Cervantes, Erick Emanuel Luna Rojero, David Aarón Nieto Álvarez, Rodolfo Cisneros Devora, Mirna Pons Jiménez, Alejandro Ramírez Estrada, América Elizabeth Mendoza Aguilar, Sung Jae Ko Kim
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Patent number: 10584048Abstract: A process for obtaining random copolymers from itaconic acid and/or isomers and sodium alkenyl sulfonates is by polymerization in an aqueous solution via free radicals at an acidic pH in the range from 1.0 to 3.5 and with a redox system as initiator. The copolymers can be used as calcium carbonate and calcium, strontium and barium sulfates mineral scale inhibitors and as dispersants of clays, iron oxides, calcium carbonate and strontium, barium and calcium sulfates. Random copolymers prevent and control damage in an oil reservoir, obstruction of water injection and crude oil production pipelines, and in production rigs due to mineral scale precipitation caused by high levels of salinity of the injection water and formation water. Random copolymers are tolerant to high concentrations of divalent ions, such as calcium, magnesium, strontium and barium, and can be added to the reservoir and to injection or production pipelines, treated water, sea water and water that is used as means of transportation.Type: GrantFiled: April 24, 2014Date of Patent: March 10, 2020Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Raul Hernandez Altamirano, Violeta Yasmin Mena Cervantes, Luis Silvestre Zamudio Rivera, Erick Emanuel Luna Rojero, Jose Manuel Martinez Magadan, David Aaron Nieto Alvarez, Mirna Pons Jimenez, Alejandro Ramirez Estrada, Maria del Pilar Arzola Garcia
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Publication number: 20200048123Abstract: A process for obtaining random copolymers from itaconic acid and/or isomers and sodium alkenyl sultanates is by polymerization in an aqueous solution via free radicals at an acidic pH in the range from 1.0 to 3.5 and with a redox system as initiator. The copolymers can be used as calcium carbonate and calcium, strontium and barium sulfates mineral scale inhibitors and as dispersants of clays, iron oxides, calcium carbonate and strontium, barium and calcium sulfates. Random copolymers prevent and control damage in an oil reservoir, obstruction of water injection and crude oil production pipelines, and in production rigs due to mineral scale precipitation caused by high levels of salinity of the injection water and formation water. Random copolymers are tolerant to high concentrations of divalent ions, such as calcium, magnesium, strontium and barium, and can be added to the reservoir and to injection or production pipelines, treated water, sea water and water that is used as means of transportation.Type: ApplicationFiled: October 17, 2019Publication date: February 13, 2020Inventors: Raul HERNANDEZ ALTAMIRANO, Violeta Yasmin MENA CERVANTES, Luis Silvestre ZAMUDIO RIVERA, Erick Emanuel LUNA ROJERO, Jose Manuel MARTINEZ MAGADAN, David Aaron NIETO ALVAREZ, Mirna PONS JIMENEZ, Alejandro RAMIREZ ESTRADA, Maria del Pilar ARZOLA GARCIA
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Patent number: 10442981Abstract: 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.Type: GrantFiled: November 17, 2015Date of Patent: October 15, 2019Assignee: INSTITUTO MEXICANO DEL PETRÓLEOInventors: Violeta Yázmin Mena Cervantes, Raúl Hernández Altamirano, Luis Silvestre Zamudio Rivera, Alejandro Ramírez Estrada, Jorge Francisco Ramírez Pérez, José Manuel Martínez Magadan, Rodolfo Cisneros Devora
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Patent number: 10207983Abstract: N-alkyl, N-alkenyl, N-cycloalkyl, N-aryl amino or imino propionic acids with an alkyl chain ranging from 6 to 18 carbons, or alkenyl chain from 8 to 30 carbons, are obtained from a reaction process in the absence of solvent at a temperature range from 30 to 180° C. and a time of 1 to 10 hours at atmospheric pressure. Formulations composed of N-alkyl or N-alkenyl or N-cycloalkyl or N-aryl amino or imino propionic acids, polyethers derived from propylene oxide or ethylene oxide or copolymer thereof and a solvent consisting of aromatic compounds such as toluene or xylene, diesel or gasoline or alcohols such as isopropanol and ethanol, or mixtures thereof, are obtained inhibit ferrous metal corrosion of pipelines and storage tanks and transport crude oil and liquid fuels. A method inhibiting corrosion of ferrous metals adds an effective amount of the corrosion inhibitor to a petroleum based material such as crude oil and liquid fuels such as gasoline, diesel fuel, and aviation fuel.Type: GrantFiled: December 23, 2014Date of Patent: February 19, 2019Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Raul Hernandez Altamirano, Luis Silvestre Zamudio Rivera, Violeta Yasmin Mena Cervantes, Hiram Isaac Beltran Conde, Marco Antonio Dominguez Aguilar, Jaquelin Martinez Viramontes, Aristeo Estrada Buendia
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Patent number: 10190036Abstract: The present invention is related to the obtaining and using of multifunctional foaming compositions with wettability modifying, corrosion inhibitory and inhibitory/dispersants mineral scale properties with high stability in environments of high temperature, high pressure and tolerance to high concentrations of divalent ions such as calcium, magnesium, strontium and barium. The multifunctional foaming compositions are obtained from the combination of supramolecular complexes resulting from interactions of alkyl amido propyl hydroxysultaines and/or alkyl amido propyl betaines and/or alkyl hydroxysultaines and/or alkyl betaines and anionic surfactant of type alkyl hydroxyl sodium sulfonate and alkenyl sulphonates of sodium, with cationic surfactants as tetra-alkyl ammonium halides and copolymers derivatives of itaconic acid/sodium vinyl sulfonate and/or terpolymers derived from itaconic acid/sodium vinyl sulphonate/aconitic acid.Type: GrantFiled: November 17, 2015Date of Patent: January 29, 2019Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Raúl Hernández Altamirano, Luis Silvestre Zamudio Rivera, Violeta Yázmin Mena Cervantes, Erick Emanuel Luna Rojero, David Aarón Nieto Álvarez, Rodolfo Cisneros Devora, Mirna Pons Jiménez, Alejandro Ramírez Estrada, América Elizabeth Mendoza Aguilar, Sung Jae Ko Kim
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Patent number: 10167249Abstract: N-alkyl, N-alkenyl, N-cycloalkyl, N-aryl amino or imino propionic acids with an alkyl chain ranging from 6 to 18 carbons, or alkenyl chain from 8 to 30 carbons, are obtained from a reaction process in the absence of solvent at a temperature range from 30 to 180° C. and a time of 1 to 10 hours at atmospheric pressure. Formulations composed of N-alkyl or N-alkenyl or N-cycloalkyl or N-aryl amino or imino propionic acids, polyethers derived from propylene oxide or ethylene oxide or copolymer thereof and a solvent consisting of aromatic compounds such as toluene or xylene, diesel or gasoline or alcohols such as isopropanol and ethanol, or mixtures thereof, are obtained inhibit ferrous metal corrosion of pipelines and storage tanks and transport crude oil and liquid fuels. A method inhibiting corrosion of ferrous metals adds an effective amount of the corrosion inhibitor to a petroleum based material such as crude oil and liquid fuels such as gasoline, diesel fuel, and aviation fuel.Type: GrantFiled: December 8, 2014Date of Patent: January 1, 2019Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Raul Hernandez Altamirano, Luis Silvestre Zamudio Rivera, Violeta Yasmin Mena Cervantes, Hiram Isaac Beltran Conde, Marco Antonio Dominguez Aguilar, Jaquelin Martinez Viramontes, Aristeo Estrada Buendia
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Publication number: 20180273830Abstract: The present invention is related to the obtaining and using of multifunctional foaming compositions with wettability modifying, corrosion inhibitory and inhibitory/dispersants mineral scale properties with high stability in environments of high temperature, high pressure and tolerance to high concentrations of divalent ions such as calcium, magnesium, strontium and barium. The multifunctional foaming compositions are obtained from the combination of supramolecular complexes resulting from interactions of alkyl amido propyl hydroxysultaines and/or alkyl amido propyl betaines and/or alkyl hydroxysultaines and/or alkyl betaines and anionic surfactant of type alkyl hydroxyl sodium sulfonate and alkenyl sulphonates of sodium, with cationic surfactants as tetra-alkyl ammonium halides and copolymers derivatives of itaconic acid/sodium vinyl sulfonate and/or terpolymers derived from itaconic acid/sodium vinyl sulphonate/aconitic acid.Type: ApplicationFiled: March 20, 2018Publication date: September 27, 2018Inventors: Raúl HERNÁNDEZ ALTAMIRANO, Luis Silvestre ZAMUDIO RIVERA, Violeta Yázmin MENA CERVANTES, Erick Emanuel LUNA ROJERO, David Aarón NIETO ÁLVAREZ, Rodolfo CISNEROS DEVORA, Mirna PONS JIMÉNEZ, Alejandro RAMÍREZ ESTRADA, América Elizabeth MENDOZA AGUILAR, Sung Jae Ko KIM
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Patent number: 10035757Abstract: N-alkyl, N-alkenyl, N-cycloalkyl, N-aryl amino or imino propionic acids with an alkyl chain ranging from 6 to 18 carbons, or alkenyl chain from 8 to 30 carbons, are obtained from a reaction process in the absence of solvent at a temperature range from 30 to 180° C. and a time of 1 to 10 hours at atmospheric pressure. Formulations composed of N-alkyl or N-alkenyl or N-cycloalkyl or N-aryl amino or imino propionic acids, polyethers derived from propylene oxide or ethylene oxide or copolymer thereof and a solvent consisting of aromatic compounds such as toluene or xylene, diesel or gasoline or alcohols such as isopropanol and ethanol, or mixtures thereof, are obtained inhibit ferrous metal corrosion of pipelines and storage tanks and transport crude oil and liquid fuels. A method inhibiting corrosion of ferrous metals adds an effective amount of the corrosion inhibitor to a petroleum based material such as crude oil and liquid fuels such as gasoline, diesel fuel, and aviation fuel.Type: GrantFiled: June 2, 2011Date of Patent: July 31, 2018Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Raúl Hernández Altamirano, Luis Silvestre Zamudio Rivera, Violeta Yasmín Mena Cervantes, Hiram Isaac Beltrán Conde, Marco Antonio Domínguez Aguilar, Jaquelín Martínez Viramontes, Aristeo Estrada Buendía
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Patent number: 9981958Abstract: 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: R is a polyakyl or polyalkenyl group having an average molecular weight ranging from 450 to 5000 daltons; m is an integer between 1 and 5; n is an integer between 0 and 1; and R1, R2, R3, and R4 are independent radicals, represented by the groups: —H, —CH2(CH2)AB, —C6H3DE or —C10H4FG; wherein: A is an integer between 0 and 8, B is a group selected among —H, —NH2, —OH, —COOH, and D, E, F, and G are independent radicals, selected among the groups: —H, —CH3, —CH2CH3, —CH2CH2CH3, —CH2(CH2)2CH3, —(CH3)3, C6H5, —NH2, —OH, —OCH3, OCH2CH2OH, OCH(CH3)CH2OH, OC6H5—COOH, and —SO3.Type: GrantFiled: April 15, 2008Date of Patent: May 29, 2018Assignee: Instituto Mexicano Del PetroleoInventors: Luis Silvestre Zamudio Rivera, Eugenio Alejandro Flores Oropeza, Marcelo Lozada y Cassou, Hiram Isaac Beltran Conde, Eduardo Buenrostro Gonzalez, Youri Douda, Mario Alberto Guzman Vega, Adela Morales Pacheco, Violeta Yasmin Mena Cervantes, Raul Hernandez Altamirano
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Patent number: 9920019Abstract: 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.Type: GrantFiled: December 23, 2014Date of Patent: March 20, 2018Assignee: Instituto Mexicano del PetroleoInventors: Raul Hernandez Altamirano, Violeta Yasmin Mena Cervantes, Luis Silvestre Zamudio Rivera, Hiram Isaac Beltran Conde, Eduardo Buenrostro Gonzalez
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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