Emulsion formation and breaking during in situ combustion.

ilustraciones, diagramas

Autores:: Álvarez Martínez, Felipe

Tipo de recurso:

Fecha de publicación:: 2021

Institución:: Universidad Nacional de Colombia

Repositorio:: Universidad Nacional de Colombia

Idioma:: eng

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network_acronym_str	UNACIONAL2
network_name_str	Universidad Nacional de Colombia
repository_id_str
dc.title.eng.fl_str_mv	Emulsion formation and breaking during in situ combustion.
dc.title.translated.spa.fl_str_mv	Formación y rompimiento de emulsiones en combustión in situ.
title	Emulsion formation and breaking during in situ combustion.
spellingShingle	Emulsion formation and breaking during in situ combustion. 660 - Ingeniería química Nanoparticles Secondary recovery of oil Recobro del petróleo Recobro mejorado térmico Emulsión Nanopartículas Viscosidad Análisis termogravimétrico Tamaño de gota Thermal enhanced oil recovery (TEOR) Emulsions Nanoparticles Viscosity Droplet size Thermogravimetric behavior
title_short	Emulsion formation and breaking during in situ combustion.
title_full	Emulsion formation and breaking during in situ combustion.
title_fullStr	Emulsion formation and breaking during in situ combustion.
title_full_unstemmed	Emulsion formation and breaking during in situ combustion.
title_sort	Emulsion formation and breaking during in situ combustion.
dc.creator.fl_str_mv	Álvarez Martínez, Felipe
dc.contributor.advisor.none.fl_str_mv	Molina Ochoa, Alejandro
dc.contributor.author.none.fl_str_mv	Álvarez Martínez, Felipe
dc.contributor.researchgroup.spa.fl_str_mv	Bioprocesos y Flujos Reactivos
dc.subject.ddc.spa.fl_str_mv	660 - Ingeniería química
topic	660 - Ingeniería química Nanoparticles Secondary recovery of oil Recobro del petróleo Recobro mejorado térmico Emulsión Nanopartículas Viscosidad Análisis termogravimétrico Tamaño de gota Thermal enhanced oil recovery (TEOR) Emulsions Nanoparticles Viscosity Droplet size Thermogravimetric behavior
dc.subject.lemb.eng.fl_str_mv	Nanoparticles Secondary recovery of oil
dc.subject.lemb.spa.fl_str_mv	Recobro del petróleo
dc.subject.proposal.spa.fl_str_mv	Recobro mejorado térmico Emulsión Nanopartículas Viscosidad Análisis termogravimétrico Tamaño de gota
dc.subject.proposal.eng.fl_str_mv	Thermal enhanced oil recovery (TEOR) Emulsions Nanoparticles Viscosity Droplet size Thermogravimetric behavior
description	ilustraciones, diagramas
publishDate	2021
dc.date.accessioned.none.fl_str_mv	2021-10-14T18:15:04Z
dc.date.available.none.fl_str_mv	2021-10-14T18:15:04Z
dc.date.issued.none.fl_str_mv	2021
dc.type.spa.fl_str_mv	Trabajo de grado - Maestría
dc.type.driver.spa.fl_str_mv	info:eu-repo/semantics/masterThesis
dc.type.version.spa.fl_str_mv	info:eu-repo/semantics/acceptedVersion
dc.type.content.spa.fl_str_mv	Text
dc.type.redcol.spa.fl_str_mv	http://purl.org/redcol/resource_type/TM
status_str	acceptedVersion
dc.identifier.uri.none.fl_str_mv	https://repositorio.unal.edu.co/handle/unal/80553
dc.identifier.instname.spa.fl_str_mv	Universidad Nacional de Colombia
dc.identifier.reponame.spa.fl_str_mv	Repositorio Institucional Universidad Nacional de Colombia
dc.identifier.repourl.spa.fl_str_mv	https://repositorio.unal.edu.co/
url	https://repositorio.unal.edu.co/handle/unal/80553 https://repositorio.unal.edu.co/
identifier_str_mv	Universidad Nacional de Colombia Repositorio Institucional Universidad Nacional de Colombia
dc.language.iso.spa.fl_str_mv	eng
language	eng
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dc.publisher.spa.fl_str_mv	Universidad Nacional de Colombia
dc.publisher.program.spa.fl_str_mv	Medellín - Minas - Maestría en Ingeniería - Ingeniería Química
dc.publisher.department.spa.fl_str_mv	Departamento de Procesos y Energía
dc.publisher.faculty.spa.fl_str_mv	Facultad de Minas
dc.publisher.place.spa.fl_str_mv	Medellín, Colombia
dc.publisher.branch.spa.fl_str_mv	Universidad Nacional de Colombia - Sede Medellín
institution	Universidad Nacional de Colombia
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spelling	Atribución-NoComercial 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Molina Ochoa, Alejandro0e008ac7580858f9b01ff8266aa127b3600Álvarez Martínez, Felipec8e496c7227f88aa69c9245c0f3a4157Bioprocesos y Flujos Reactivos2021-10-14T18:15:04Z2021-10-14T18:15:04Z2021https://repositorio.unal.edu.co/handle/unal/80553Universidad Nacional de ColombiaRepositorio Institucional Universidad Nacional de Colombiahttps://repositorio.unal.edu.co/ilustraciones, diagramasThe behavior of water-in-oil (W/O) emulsions during in situ combustion was studied for three different crude oils. The variables studied were shear rate, water content, level of oxidation, and the addition of silica nanoparticles. The emulsions were characterized on its thermogravimetric behavior, droplet size distribution, rheology, and viscosity. The formation of highly stable W/O emulsions is a common and undesirable consequence of thermal enhanced oil recovery (TEOR) operations. The properties of the crude oil, the amount of energy transferred to the phases, the level of oxidation, and the water content are important factors that affect the formation and breaking of this kind of emulsions. The emulsions were formed in a sealed, continuous, stirred tank with temperature and stirring rate control and at two stirring levels to represent shear rates that were comparable to those present in the pore and close to the wellbore. Oxidation was carried out in a custom-designed setup that aimed to prevent evaporation, while air flowed through the crude. The results indicate that the presence of emulsions reduces the rate of water evaporation as the temperature range at which water evaporates increases by up to 50 K depending on the crude oil. A further increase in the temperature at which the water in the emulsion evaporates is observed in oxidation oil samples. The typical droplet size of the emulsions formed is of the order of 2 m. Interestingly, while the presence of emulsions increases the viscosity of two crude samples (Q and S) it decreases the viscosity for a third sample (C) as the stability of the emulsion for crude C is compromised at the shear rates obtained in the viscosity measurements. The inclusion of 1000 mg/L of silica nanoparticles has a positive, although minor, effect on the emulsion formation process as it increases the rate of evaporation of the emulsified water, reduces the viscosity of the emulsion, and increases the mean droplet size.El comportamiento de emulsiones de agua en aceite (W/O) durante la combustión in situ fue estudiada para tres diferentes crudos. Las variables estudiadas fueron tasa de corte, contenido de agua, nivel de oxidación, y la adición de nanopartículas de sílica. Las emulsiones fueron caracterizadas mediante su comportamiento termogravimétrico, distribución de tamaño de gota, reología y viscosidad. La formación de emulsiones W/O altamente estables es una consecuencia común e indeseable de operaciones de recobro mejorado térmico (TEOR por sus siglas en inglés). Las propiedades del crudo, la cantidad de energía entregada a las fases, el nivel de oxidación, y el contenido de agua son factores importantes que afectan la formación que afectan la formación y rompimiento de este tipo de emulsiones. Las emulsiones fueron formadas en un tanque agitado sellado y continuo que cuenta con control de temperatura y tasa de corte y a dos niveles de agitación para así representar las tasas de corte que pudieran ser comparables con aquellas presentes en el poro y cerca de la cara de pozo. La oxidación se llevó a cabo en un montaje personalizado que buscaba prevenir la evaporación, mientras aire fluía a través del crudo. Los resultados indican que la presencia de emulsiones reduce la tasa de evaporación de agua mientras que el rango de temperatura en el que el agua se evapora incrementa hasta 50 K dependiendo del crudo. Un incremento adicional en la temperatura a la cual el agua presente en la emulsión se evapora se observa en las muestras de crudo oxidado. El tamaño de gota común en las emulsiones formadas es del orden de 2 m. De manera interesante, mientras la presencia de emulsiones incrementa la viscosidad para dos muestras de crudo (Q y S), esta disminuye la viscosidad para la tercera muestra (crudo C) ya que la estabilidad de las emulsiones con curdo C es comprometida a las tasas de corte que se presentan durante las mediciones de viscosidad. La inclusión de 1000 mg/L de nanopartículas de sílica tiene un impacto positivo, aunque bajo, en el proceso de formación de emulsiones ya que la tasa de evaporación del agua en emulsión aumenta, reduce la viscosidad de la emulsión y además aumenta el tamaño medio de las gotas. 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Boston, MA: Springer US, 1986, pp. 1617-1632. doi: 10.1007/978-1-4613-1833-0_39.InvestigadoresMaestrosLICENSElicense.txtlicense.txttext/plain; charset=utf-83964https://repositorio.unal.edu.co/bitstream/unal/80553/1/license.txtcccfe52f796b7c63423298c2d3365fc6MD51ORIGINALTesis MSc Felipe Álvarez M.pdfTesis MSc Felipe Álvarez M.pdfTesis de Maestría en Ingeniería – Ingeniería Químicaapplication/pdf2671835https://repositorio.unal.edu.co/bitstream/unal/80553/2/Tesis%20MSc%20Felipe%20%c3%81lvarez%20M.pdf19048c5347daaadb1cf05632a9252ef3MD52THUMBNAILTesis MSc Felipe Álvarez M.pdf.jpgTesis MSc Felipe Álvarez M.pdf.jpgGenerated Thumbnailimage/jpeg4482https://repositorio.unal.edu.co/bitstream/unal/80553/3/Tesis%20MSc%20Felipe%20%c3%81lvarez%20M.pdf.jpg1ba04d9621d60699a9516ebc8358e517MD53unal/80553oai:repositorio.unal.edu.co:unal/805532023-10-13 13:30:17.899Repositorio Institucional Universidad Nacional de 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GVyZWNob3MgZGUgYXV0b3IgcXVlIGNvbmxsZXZlIGxhIGRpc3RyaWJ1Y2nDs24gZGUgZXN0b3MgYXJjaGl2b3MgeSBtZXRhZGF0b3MuCkFsIGhhY2VyIGNsaWMgZW4gZWwgc2lndWllbnRlIGJvdMOzbiwgdXN0ZWQgaW5kaWNhIHF1ZSBlc3TDoSBkZSBhY3VlcmRvIGNvbiBlc3RvcyB0w6lybWlub3MuCgpVTklWRVJTSURBRCBOQUNJT05BTCBERSBDT0xPTUJJQSAtIMOabHRpbWEgbW9kaWZpY2FjacOzbiAyNy8yMC8yMDIwCg==

Emulsion formation and breaking during in situ combustion.

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