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首页> 外文期刊>Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics >Investigation on flow patterns and pressure drops of highly viscous crude oil-water flows in a horizontal pipe
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Investigation on flow patterns and pressure drops of highly viscous crude oil-water flows in a horizontal pipe

机译：水平管道中高粘度原油水流的流型和压降研究

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Pressure drops were measured during the co-current flow of a highly viscous oil and water in a horizontal stainless steel pipe with 40 m in total length and 25 mm inner diameter. Measurements were made for the velocities of the oil-water mixtures from 0.3 to 1.5 m/s, water volume fractions from 0.5 to 0.8 and experimental temperatures from 85 to 60 degrees C. Six flow patterns that most likely occur during the oil-water two-phase flow with high water fractions were found in previous studies, and the occurrence probability of each flow pattern was preliminarily evaluated according to the agreement between the experimental and theoretical values of pressures drops. And then three of the six pressure drop prediction models were well modified and verified. Flow pattern maps were constructed in the water fraction versus mixture velocity at different temperatures, which demonstrates various impacts of temperature, water fraction, and mixture velocity on flow patterns. This work may be the first attempt to investigate highly viscous oil-water flow behavior with flow pattern transitions under different temperatures. (C) 2015 Elsevier Inc. All rights reserved.
机译：在高粘度油和水在水平总长度为40 m，内径为25 mm的水平不锈钢管中并流的过程中测量压降。对油水混合物的速度从0.3到1.5 m / s，水体积分数从0.5到0.8以及实验温度从85到60摄氏度进行了测量。在油水两相中最有可能出现的六种流动模式在先前的研究中发现了高含水率的两相流，并根据实验压降与理论值之间的一致性对每种流型的发生概率进行了初步评估。然后，对六个压降预测模型中的三个进行了很好的修改和验证。在不同温度下水份与混合物速度的关系中建立了流型图，这证明了温度，水份和混合物速度对流型的各种影响。这项工作可能是研究在不同温度下具有流型转变的高粘性油水流动行为的首次尝试。 （C）2015 Elsevier Inc.保留所有权利。

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