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Estudio experimental sobre el fenómeno de retención y el patrón de flujo de pseudo-slug en un flujo de gas denso y líquido en conductos horizontales y ligeramente inclinados

dc.contributor.authorRuiz Diaz, Carlos Mauricio
dc.contributor.authorAlvarez Pacheco, Cristhian Enrique
dc.contributor.authorBochio, Gustavo
dc.contributor.authorHernandez Rodriguez, Oscar Mauricio
dc.coverage.spatialColombiaen_US
dc.date.accessioned2026-04-22T16:07:22Z
dc.date.available2026-04-22T16:07:22Z
dc.date.issued2026-02-21
dc.identifier.issn1806-3691en_US
dc.identifier.urihttps://repositorioinstitucional.ufpso.edu.co/xmlui/handle/20.500.14167/6223
dc.description.abstractLa formación de gases densos viene determinada por altas presiones, temperaturas críticas y un elevado contenido de CO₂, condiciones características de entornos de producción en aguas ultraprofundas, como el presal brasileño. Este estudio presenta una investigación experimental sobre el flujo bifásico de gas denso y líquido en conductos horizontales y ligeramente inclinados hacia arriba, en condiciones hidrodinámicas representativas de estos escenarios. Debido a la falta de datos experimentales en tales regímenes, la precisión de los modelos predictivos existentes sigue siendo limitada, lo que podría dar lugar a pérdidas económicas y a riesgos medioambientales o de seguridad. Los experimentos se llevaron a cabo utilizando un bucle inclinable de alta presión equipado con una tubería de 30 m, empleando hexafluoruro de azufre (SF₆) presurizado como fase gaseosa y aceite mineral como fase líquida. La sección de ensayo se configuró a 0°, 5° y 10°, y se recopilaron 125 puntos experimentales, incluyendo datos de presión, temperatura, caudal, retención y patrón de flujo. La formación de gases densos viene determinada por altas presiones, temperaturas críticas y un elevado contenido de CO₂, condiciones características de entornos de producción en aguas ultraprofundas, como el presal brasileño. Este estudio presenta una investigación experimental sobre el flujo bifásico de gas denso y líquido en conductos horizontales y ligeramente inclinados hacia arriba, en condiciones hidrodinámicas representativas de estos escenarios. Debido a la falta de datos experimentales en tales regímenes, la precisión de los modelos predictivos existentes sigue siendo limitada, lo que podría dar lugar a pérdidas económicas y a riesgos medioambientales o de seguridad. Los experimentos se llevaron a cabo utilizando un bucle inclinable de alta presión equipado con una tubería de 30 m, empleando hexafluoruro de azufre (SF₆) presurizado como fase gaseosa y aceite mineral como fase líquida. La sección de ensayo se configuró a 0°, 5° y 10°, y se recopilaron 125 puntos experimentales, incluyendo datos de presión, temperatura, caudal, retención y patrón de flujo.en_US
dc.language.isoengen_US
dc.relationhttps://link.springer.com/article/10.1007/s40430-025-06289-zen_US
dc.titleEstudio experimental sobre el fenómeno de retención y el patrón de flujo de pseudo-slug en un flujo de gas denso y líquido en conductos horizontales y ligeramente inclinadosen_US
dc.title.translatedExperimental study on holdup and pseudo-slug flow pattern in horizontal and slightly inclined dense-gas/liquid flowen_US
dc.contributor.cvlacCarlos Mauricio Ruiz Diaz [0001772117]en_US
dc.contributor.cvlacCristhian Enrique Alvarez Pacheco [0000138453]en_US
dc.contributor.cvlacOscar Mauricio Hernandez Rodriguez [0000316504]en_US
dc.contributor.googlescholarCarlos Mauricio Ruiz Diaz [x10qI0UAAAAJ]en_US
dc.contributor.googlescholarCristhian Enrique Alvarez Pacheco [sKtc1OgAAAAJ]en_US
dc.contributor.googlescholarOscar Mauricio Hernandez Rodriguez [i48N_sEAAAA]en_US
dc.contributor.orcidCarlos Mauricio Ruiz Diaz [0000-0003-3836-9332]en_US
dc.contributor.orcidCristhian Enrique Alvarez Pacheco [0000-0003-4062-0311]en_US
dc.contributor.orcidGustavo Bochio [0001454975]en_US
dc.contributor.orcidOscar Mauricio Hernandez Rodriguez [0000-0003-1578-7996]en_US
dc.contributor.researchgateCarlos Mauricio Ruiz Diaz [Carlos-Mauricio-Ruiz-Diaz]en_US
dc.contributor.scopusCarlos Mauricio Ruiz Diaz [57326268000]en_US
dc.contributor.scopusGustavo Bochio [56464171900]en_US
dc.contributor.scopusAlberto T. Postal [59895063700]en_US
dc.contributor.scopusOscar Mauricio Hernandez Rodriguez [7103218937]en_US
dc.description.abstractenglishThe formation of dense gases is driven by high pressures, critical temperatures, and high content of CO₂, conditions characteristic of ultra-deepwater production environments such as the Brazilian pre-salt. This study presents an experimental investigation of horizontal and slightly upward inclined dense-gas and liquid two-phase flow under hydrodynamic conditions representative of these scenarios. Due to the lack of experimental data in such regimes, the accuracy of existing predictive models remains limited, potentially leading to economic losses and environmental or safety risks. Experiments were conducted using a high-pressure inclinable loop equipped with a 30 m pipeline, employing pressurized sulfur hexafluoride (SF₆) as the gas phase and mineral oil as the liquid phase. The test section was configured at 0°, 5°, and 10°, and 125 experimental points were collected, including pressure, temperature, flow, holdup, and flow pattern data. Two-phase flow visualization was carried out using a high-speed camera, while liquid holdup and phase fraction distribution were determined with a collimated gamma-ray densitometer. The observed flow patterns included stratified smooth, stratified wavy, stratified wavy with mixing at the interface, slug, pseudo-slug, dispersed, and the rarely reported dual-continuous pattern. Notably, the dual-continuous flow pattern was identified for the first time under upward inclined conditions (5°and 10°). The experimental results demonstrate that pipe inclination and dense gas velocity are key factors in the transition between slug and pseudo-slug flow patterns. Additionally, interfacial instabilities and liquid splashing were observed at high dense-gas velocities. These findings address important knowledge gaps and support the development of more accurate predictive models for multiphase flow in complex production scenarios.en_US
dc.subject.proposalFlujo gas-líquidoen_US
dc.subject.proposalGas densoen_US
dc.subject.proposalPatrones de flujoen_US
dc.subject.proposalRetenciónen_US
dc.subject.proposalRayos gammaen_US
dc.subject.proposalFlujo de derivaen_US
dc.subject.keywordsGas-liquid flowen_US
dc.subject.keywordsDense gasen_US
dc.subject.keywordsFlow patternsen_US
dc.subject.keywordsHoldupen_US
dc.subject.keywordsGamma rayen_US
dc.subject.keywordsDrift-fluxen_US
dc.publisher.facultyFacultad ingenieríasen_US
dc.type.redcolhttp://purl.org/redcol/resource_type/ARTen_US
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dc.identifier.DOIhttps://doi.org/10.1007/s40430-025-06289-zen_US


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