Applying CFD in the analysis of heavy oil - water two-phase flow in joints by using core annular flow technique

Andrade, Tony; Silva, Filipe; Neto, Severino Rodrigues de Farias; Lima, Antonio de

doi:10.1260/1750-9548.7.2.137

Cited by 12 publications

(6 citation statements)

References 19 publications

(24 reference statements)

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“…However, the influence of the gas phase in the core-flow on pipelines and connections is still not well defined, and further studies are needed to ensure the efficiency of the technique in this physical situation. The tests of the related phenomena that emerged in connections were evaluated by Wang et al [9], Andrade et al [10], Andrade et al [11], Andrade et al [12], Andrade et al [13] and Crivelaro et al [14]. Particularly with reference to reduction of pressure drop in flow, Brauner et al [15] has reported a correlation applied to heavy-oil/water two-phase flow in an annular flow pattern.…”

Section: Heavy-oil Transport Techniquesmentioning

confidence: 99%

Applying CFD in the Analysis of Heavy-Oil Transportation in Curved Pipes Using Core-Flow Technique

Conceição¹,

Lima

Andrade³

et al. 2017

IJM

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Section: Heavy-oil Transport Techniquesmentioning

confidence: 99%

Applying CFD in the Analysis of Heavy-Oil Transportation in Curved Pipes Using Core-Flow Technique

Conceição¹,

Lima

Andrade³

et al. 2017

IJM

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“…Devido a importância, diversos outros trabalhos relacionados com escoamento de óleos pesados usando a técnica core-flow têm sido reportado na literatura (Trevisan, 2003;Rodriguez & Bannwart, 2006;Ooms et al, 2007, Belém, 2008Pereira Filho, 2010;Andrade et al, 2012;Gadelha et al, 2013;Andrade et al, 2013a;Andrade et al, 2013b;Andrade et al, 2014;Conceição et al, 2017;Silva et al, 2020).…”

Section: Introductionunclassified

Modelagem e simulação de escoamento anular de água, óleo pesado e ar em dutos horizontais

Nunes

Brito

Neto

et al. 2020

RSD

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Este artigo tem como objetivo estudar o escoamento trifásico água – óleo pesado – ar em dutos horizontais, utilizando a técnica “core annular flow”. O modelo matemático utilizado foi o não-homogêneo, numa abordagem Euleriana – Euleriana. Considerou-se o modelo de mistura para tratar os termos de transferência de momento interfacial entre as fases contínuas (água e óleo pesado) e o modelo de partícula para tratar os termos de transferência de momento interfacial entre as fases dispersa e contínua (ar e óleo pesado). Todas as simulações foram realizadas utilizando o Software CFX versão 11. Resultados dos campos de pressão e fração volumétrica das fases e queda de pressão no duto são apresentados e comparados com dados experimentais. Verificou-se que a modelagem matemática utilizada foi adequada, apresentado erro máximo com relação aos dados experimentais de queda de pressão de 7,3%, demonstrando a eficiência da técnica core-flow para o transporte trifásico de água - óleo pesado – ar.

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“…This is so because it offers flexibility to observe parametrical and topographical changes (Burlutskii, 2018), making it possible to analyze complex problems (Walvekar et al, 2009) such as multiphase flow profiles. To mention few examples, Andrade et al (2013) have used CFD to model and simulate transient two-phase flow between heavy oil and water in a horizontal pipe and T-joint. More so, Balakhrisna et al (2010) and Ghosh et al (2010) have used CFD to study the pressure profiles of CAF in sudden contraction and expansion in a horizontal conduit.…”

mentioning

confidence: 99%

Application of density-viscosity in predicting oil-water flow profile in horizontal pipe

Ayuba

Buhler

Silva

et al. 2020

Exp. Comput. Multiph. Flow

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In this article, the commercial software COMSOL multiphysics 5.0 was used to model and simulate 2D core annular flow (CAF) between oil and water flow in a horizontal pipe. The objective was to obtain the flow volume, velocity, shear rate, and pressure profiles of nine different kinds of oils (ranging from heavy to light) found in published articles, and explain them using density-viscosity magnitudes. Interestingly, those magnitudes and their application in describing multiphase volume pressure, velocity were the main novelties of this paper. Thus, the magnitudes were calculated through multiplying the densities of oils by their respective viscosities. However, for convenience, dimensionless forms of these magnitudes were also calculated through further division of oil density-viscosity magnitudes by that of water. Using those magnitudes, it was possible to explain the numerical results of flow volume, velocity, shear rate, and pressure profiles obtained in this article. Notably, analyses of the results showed that larger magnitudes (above 500, using the dimensionless magnitude) produce core annular flows (CAF), while lower magnitudes (below 10 using the dimensionless magnitude) produce other flow profiles (such as dispersed, slug, and plug). The numerical study was carried out using two-phase laminar Level-set method, which was successfully validated by reproducing volume, velocity, pressure, and shear stress (product of shear rate and viscosity) profiles that were found in two published articles.

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Applying CFD in the analysis of heavy oil - water two-phase flow in joints by using core annular flow technique

Cited by 12 publications

References 19 publications

Applying CFD in the Analysis of Heavy-Oil Transportation in Curved Pipes Using Core-Flow Technique

Applying CFD in the Analysis of Heavy-Oil Transportation in Curved Pipes Using Core-Flow Technique

Modelagem e simulação de escoamento anular de água, óleo pesado e ar em dutos horizontais

Application of density-viscosity in predicting oil-water flow profile in horizontal pipe

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