Pressure loss in core-annular flow: Modeling, experimental investigation and full-scale experiments

Rodriguez, Oscar Maurício Hernandez; Bannwart, Antonio Carlos; Carvalho, Carlos H. M. de

doi:10.1016/j.petrol.2008.12.026

Cited by 64 publications

(61 citation statements)

References 23 publications

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“…Note that the uncertainties of the pressure drop measurement in the experiment are approximately ±25% for the lowest oil superficial velocities and ±6% for the highest oil superficial velocities [35]. This again validates the capability of the developed model in predicting two-phase flow.…”

Section: B Validations 1) Two-phase Water-kerosene Bubbly Flowsupporting

confidence: 73%

Modeling of two-phase flow with deposition in vertical pipes

Yap

Goharzadeh

et al. 2017

2017 7th International Conference on Modeling, Simulation, and Applied Optimization (ICMSAO)

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Section: B Validations 1) Two-phase Water-kerosene Bubbly Flowsupporting

confidence: 73%

Modeling of two-phase flow with deposition in vertical pipes

Yap

Goharzadeh

et al. 2017

2017 7th International Conference on Modeling, Simulation, and Applied Optimization (ICMSAO)

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“…It is more economical when compared with other technologies, such as heating, solvent dilution, emulsification, and partial upgrading (Nunez et al 1998;Saniere et al 2004). In LPF, a thin water annulus prevents continuous contact between the pipe wall and the viscous oil core, resulting in much lower energy requirements than would be needed to transport the viscous oil alone in the pipeline (Arney et al 1993;Joseph et al 1999;McKibben et al 2000;Rodriguez et al 2009;de Andrade et al 2012). The water could be naturally present in the oil or could be injected for the purpose of producing LPF.…”

Section: Introductionmentioning

confidence: 99%

“…It has been found in repeated tests that the formation of this wall coating is practically unavoidable in the industrial application of LPF technology (McKibben et al 2000(McKibben et al , 2016. Different degrees of wall fouling occur depending on the conditions of LPF, e.g., water cut, oil viscosity, and superficial velocity (Joseph et al 1999;Schaan et al 2002;Rodriguez et al 2009;Vuong et al 2009). …”

Section: Introductionmentioning

confidence: 99%

A parametric study of the hydrodynamic roughness produced by a wall coating layer of heavy oil

Rushd

Sanders

2017

Pet. Sci.

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In water-lubricated pipeline transportation of heavy oil and bitumen, a thin oil film typically coats the pipe wall. A detailed study of the hydrodynamic effects of this fouling layer is critical to the design and operation of oil-water pipelines, as it can increase the pipeline pressure loss (and pumping power requirements) by 15 times or more. In this study, a parametric investigation of the hydrodynamic effects caused by the wall coating of viscous oil was conducted. A custom-built rectangular flow cell was used. A validated CFD-based procedure was used to determine the hydrodynamic roughness from the measured pressure losses. A similar procedure was followed for a set of pipe loop tests. The effects of the thickness of the oil coating layer, the oil viscosity, and water flow rate on the hydrodynamic roughness were evaluated. Oil viscosities from 3 to 21300 Pa s were tested. The results show that the equivalent hydrodynamic roughness produced by a wall coating layer of viscous oil is dependent on the coating thickness but essentially independent of oil viscosity. A new correlation was developed using these data to predict the hydrodynamic roughness for flow conditions in which a viscous oil coating is produced on the pipe wall.Keywords Pipeline transportation Á Heavy oil Á Wall fouling Á Lubricated pipe flow Á CFD simulation List of symbols

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“…Rodrigues et al [107] proposed a new model for pressure loss prediction in core-annular flow. Although the data indicated that the core-annular flow pattern was generated in onshore-field scale experiments but they were not able to provide further evidence because no visualization section was available.…”

Section: Core-annular Flow In Oil-water Flowmentioning

confidence: 99%