Transport of solids by gas‐liquid mixtures in horizontal pipes

Three‐phase (G/L/S) horizontal pipe flow data collected from the literature are used to evaluate the performance of a number of correlations designed to predict the pipeline pressure gradient. In the present study, a number of popular two‐phase gas–liquid pressure loss correlations were modified for three‐phase flow predictions. The primary modification is to assume that the slurry (L/S) mixture behaves as a singlephase. The modified Dukler and the Beggs and Brill correlations did not provide accurate estimates of the three‐phase pressure gradients. When the classical Lockhart–Martinelli (L–M) correlation was used, along with a kinematic friction loss model to calculate the slurry (L/S) superficial flow pressure gradient, accurate predictions of the three‐phase (G/L/S) pressure gradient were obtained provided the slurry did not exhibit non‐Newtonian behaviour and that Coulombic (sliding bed) friction was negligible. Additional experiments should be conducted before the improved version of the L–M correlation is applied to commercial installations with pipe diameters greater than 100 mm.

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“…Conditions required to prevent the formation of a stationary bed of solids were considered in only a few studies (e.g. Ref …”

Section: Previous Studiesmentioning

confidence: 99%

An improved method for applying the lockhart–martinelli correlation to three‐phase gas–liquid–solid horizontal pipeline flows

2013

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“…Thus, the results of the present model were compared with those obtained using the Scott and Rao (1971) model for three-phase flow in horziontal pipes for a wide range of volumetric liquid flow rates. Scott and Rao (1971) experimentally studied transport of solids in air-water flow through horizontal pipes under low gas and liquid flow rates at high sand loading. Based on their experiments, an empirical model was developed to predict the corresponding pressure gradient.…”

Section: Model Validationmentioning

confidence: 97%

“…This method can be used as a tool to evaluate the performance of different operating scanarios. The developed model is validated against that by Scott and Rao (1971) for three-phase flow in horizontal pipes at high sand loading.…”

Section: Introductionmentioning

confidence: 98%

Hydraulic Analysis of Gas-Oil-Sand Flow in Horizontal Wells

et al. 2010

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The limited knowledge and understanding of three-phase gas-oil-sand flow behaviour and transport processes has hampered the design, safe operation and project profitability of horizontal wells deployment in unconsolidated hydrocarbon reservoirs. This work presents analytical equations for calculating pressure drop characteristics and optimal flow rate to avoid sand particles deposition and accumulation in a horizontal production well under steady state conditions. The analysis is based on multiphase transport fundamentals and mechanics of particle motion in three-phase flow. The pressure gradient results predicted by the proposed model show a satisfactory agreement with a published model. A sensitivity study is then made (after model validation) using the new model to investigate effects of operating, design and system parameters on pressure gradient and optimal transport velocity under wide-ranging conditions found in practice. The potential advantages of the new methodology are also reported.

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“…In one study, slug initiation prediction is determined by analysing the stability of a stratified flow in a pipeline [6]. At the same time, the computational fluid dynamics (CFD) method, is also being applied to investigate the behaviour of two-phase flows [7].…”

Section: Introductionmentioning

confidence: 99%

“…There are very few studies and limited research in this field with three phase air-water-gas flow. Some of those studies are by Scott and Rao (1971) [7], Toda et al (1978) [8], Fukuda and Shoji (1986) [9], Kago et al (1986) [10], Toda and Konno (1987) [11] Gillies et al (1997) [12], Mao et al (1997) [2], Bello et al (2010) [13], Rahman et al (2013) [14] and Pouranfard et al (2015) [8]. These are all experimental studies, mainly focused on measuring pressure gradient, deposition velocity, in situ concentration of each phase for a wide range of operating conditions.…”

Section: Introductionmentioning

confidence: 99%

CFD and experimental approach on three phase gas-liquid-solid Newtonian fluid flow in horizontal pipes

Sultan¹,

Alfarek²,

Rahman³

et al. 2018

Int. J. CMEM

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This study analyses three dimensional fluid flow through horizontal pipelines with three-phase gasliquid-solid Newtonian fluids by Computational Fluid Dynamics (CFD) simulation. Validating the simulation with experimental data, the study aims to develop a versatile acceptable simulation model that can be used further for different applied cases. An experimental setup is developed in our laboratory to determine slug flow (air-water) through a horizontal pipeline. Air as gas, water as liquid and silica as solid particle is used in this work. ANSYS Fluent version 16.2 is employed to perform the simulation. The Eulerian multiphase model with the Reynolds Stress Model (RSM) turbulence closure is adopted to analyse multiphase fluid flow. Parameters are selected from experimental works to validate the simulation. After a good agreement with experimental data, sensitivity analysis is conducted to observe the three phase fluid flow characteristics through horizontal flow. Pressure gradient (pressure drop per unit length) and in situ concentration profile are used as primary parameters. This article provides a clear relationship between the different parameters of three-phase fluid flow through a horizontal pipeline.

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Transport of solids by gas‐liquid mixtures in horizontal pipes

Cited by 22 publications

References 3 publications

An improved method for applying the lockhart–martinelli correlation to three‐phase gas–liquid–solid horizontal pipeline flows

An improved method for applying the lockhart–martinelli correlation to three‐phase gas–liquid–solid horizontal pipeline flows

Hydraulic Analysis of Gas-Oil-Sand Flow in Horizontal Wells

CFD and experimental approach on three phase gas-liquid-solid Newtonian fluid flow in horizontal pipes

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