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dc.contributor.authorRuiz Diaz, Carlos Mauricio
dc.contributor.authorÁlvarez Pacheco, Cristhian Enrique
dc.contributor.authorOrati da Silva, Edson
dc.contributor.authorBochio, Gustavo
dc.contributor.authorT. Postal, Alberto
dc.contributor.authorHernandez Rodriguez, Oscar Mauricio
dc.coverage.spatialColombiaen_US
dc.date.accessioned2026-04-23T14:29:44Z
dc.date.available2026-04-23T14:29:44Z
dc.date.issued2025-10-08
dc.identifier.issn0301-9322en_US
dc.identifier.urihttps://repositorioinstitucional.ufpso.edu.co/xmlui/handle/20.500.14167/6231
dc.description.abstractLas altas presiones, las temperaturas críticas y las elevadas concentraciones de CO₂ en los yacimientos marinos ultraprofundos dan lugar a la formación de gases densos dentro de los sistemas de producción. Estas condiciones dan lugar a un flujo bifásico con gas denso, un fenómeno que aún no se comprende bien, especialmente en condiciones de ligera inclinación. Este estudio presenta una exhaustiva investigación experimental de dicho flujo utilizando hexafluoruro de azufre (SF₆) y aceite mineral en una tubería de 2 pulgadas. Se obtuvieron un total de 158 puntos de datos en condiciones controladas para inclinaciones de 0°, 5° y 10°. La retención se midió mediante densitometría de rayos gamma, y se evaluaron los datos de los gradientes de presión por fricción junto con la caracterización del patrón de flujo. La matriz de ensayo abarcó velocidades superficiales del líquido de 0,02 a 2,0 m/s y velocidades del gas de 0,05 a 1,5 m/s, con una relación de densidad líquido-gas inferior a 10. Se observaron patrones de flujo de transición, es decir, pseudo-slug y dual-continuo, siendo este último atípico en el flujo gas-líquido. Los patrones de flujo estratificado desaparecieron por completo a inclinaciones de 5◦ y 10◦, mientras que los flujos dispersos se expandieron, probablemente debido a la redistribución de fases provocada por la inclinación. Las comparaciones con los principales simuladores comerciales pusieron de manifiesto discrepancias notables en las predicciones del contenido de fase y del gradiente de presión, especialmente en condiciones de flujo transitorio y estratificado. Estos hallazgos subrayan la necesidad de estrategias de modelización que tengan en cuenta la inclinación y ofrecen una valiosa base de datos experimental para mejorar el rendimiento de los simuladores en flujos multifásicos de gas densoen_US
dc.language.isoengen_US
dc.relationhttps://www.sciencedirect.com/science/article/pii/S0301932225003520en_US
dc.titleEstudio experimental sobre el flujo de gas denso y petróleo en tuberías horizontales y ligeramente inclinadas hacia arribaen_US
dc.title.translatedExperimental study on dense-gas/oil flow in horizontal and slightly upward inclined pipesen_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.orcidEdson Orati da Silva [0000-0001-8346-0050]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.scopusEdson Orati da Silva [58205611100]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.abstractenglishHigh pressures, critical temperatures, and elevated CO₂ concentrations in ultradeep offshore reservoirs lead to the formation of dense gases within production systems. These conditions result in two-phase flow with dense gas, a flow condition still poorly understood, particularly under slight inclinations. This study presents an extensive experimental investigation of such flow using sulfur hexafluoride (SF₆) and mineral oil in a 2-inch pipeline. A total of 158 data points were obtained under controlled conditions for inclinations of 0◦, 5◦, and 10◦. Holdup was measured using gamma-ray densitometry, and frictional pressure gradients data were evaluated along with flow pattern characterization. The test matrix covered superficial liquid velocities from 0.02 to 2.0 m/ s and gas velocities from 0.05 to 1.5 m/s with the liquid-gas density ratio below 10. Transitional flow patterns, i. e., pseudo-slug and dual-continuous, were observed, being the latter atypical in gas-liquid flow. Stratified flow patterns disappeared entirely at inclinations of 5◦ and 10◦, while dispersed flows expanded likely due to inclination-induced phase redistribution. Comparisons with leading commercial simulators highlighted notable discrepancies in holdup and pressure gradient predictions, especially under transitional and stratified flow conditions. These findings underline the need for inclination-aware modeling strategies and offer a valuable experimental database to improve simulator performance in dense-gas/liquid multiphase flows.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.proposalGradiente de presiónen_US
dc.subject.proposalDatos experimentalesen_US
dc.subject.keywordsGas-liquid flowen_US
dc.subject.keywordsDense gasen_US
dc.subject.keywordsFlow patternsen_US
dc.subject.keywordsHoldupen_US
dc.subject.keywordsPressure gradienten_US
dc.subject.keywordsExperimental dataen_US
dc.type.redcolhttp://purl.org/redcol/resource_type/ARTen_US
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