Modeling droplet dispersion in a vertical turbulent tubing flow

被引：10

作者：

Eskin, Dmitry ^{[1
]}

Taylor, Shawn ^{[1
]}

Ma, Shouxiang Mark ^{[2
]}

Abdallah, Wael ^{[3
]}

机构：

[1] Schlumberger Doll Res Ctr, Cambridge, MA 02139 USA

[2] Saudi Aramco, Dhahran 31311, Saudi Arabia

[3] Schlumberger Carbonate Res Ctr, Dhahran 31942, Saudi Arabia

来源：

CHEMICAL ENGINEERING SCIENCE | 2017年 / 173卷

关键词：

Dispersion; Droplets; Emulsion; Modeling; Population balance; Turbulence; LIQUID-LIQUID DISPERSIONS; PIPE-FLOW; BUBBLE BREAKUP; SIZE; COALESCENCE; DEPOSITION;

D O I：

10.1016/j.ces.2017.07.023

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Usually, during oil production, water and oil flow simultaneously in the wellbore. When water holdup in the borehole is small, water droplets may be dispersed into bulk oil making water breakthrough detection a challenging task. In this paper, a comprehensive engineering model of droplet dispersion is presented. Dispersion of droplets in a long vertical turbulent tubing flow is modeled by an Advection-DiffusionPopulation Balance equation. The Prandtl Mixing-Length model of turbulence is used to describe the velocity profile across a tubing. The turbulence energy dissipation rate distribution across a pipe is calculated by an analytical equation. The fixed pivot method is employed for calculation of the population balance term of the governing equation. Droplet fragmentation is modeled using a recently developed droplet breakup model (Eskin et al., 2017). It is assumed that volume concentration of a dispersed phase does not exceed 10%. A computational code developed allows tracking evolution of droplet size distribution along a tubing. Model performance is illustrated by computations of the water in oil dispersion process. Effects of oil/ water interfacial tension, well production rate and oil viscosity on dispersion are demonstrated.(C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：12 / 20

页数：9

共 20 条

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Ahmad N, 2013, 166532 SPE ATCE

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