Oil-gas-water three-phase upward flow through a vertical pipe: Influence of gas injection on the pressure gradient | |
Xu JY(许晶禹); Zhang J(张健); Liu HF(刘海飞); Wu YX(吴应湘); Xu, JY | |
Source Publication | INTERNATIONAL JOURNAL OF MULTIPHASE FLOW |
2012-11-01 | |
Volume | 46Pages:1-8 |
ISSN | 0301-9322 |
Abstract | LtdAn experimental study of three-phase flow in a vertical pipe with 50 mm diameter has been carried out. The experiments were conducted under the input superficial phase velocity: water from 0 to 0.885 m/s, oil from 0 to 0.90 m/s and gas from 0 to 0.85 m/s. In order to investigate the influence of gas injection on an oil-water two-phase flow, the average in situ phase fraction and pressure gradient were measured. The results showed that gas injection had little impact on the phase invasion and the phase inversion was still taking place at the same oil volume fraction. The average in situ gas fraction reached to its lowest value around the phase inversion point. In comparison to oil-water flow, the presence of gas decreased considerably the gravity pressure gradient and the total pressure gradient was reduced. However, when the input oil fraction was close to the phase inversion point, the contribution of frictional and gravity terms to the total pressure gradient became more equal, hence the total pressure gradient in three-phase flow could be higher than that in oil-water flow around the phase inversion region. In addition, several methods based on an oil-water flow as a single phase flow were evaluated to predict the pressure gradient of three-phase vertical bubbly flow. A good agreement was obtained between theory and data in this work and those in the literature. |
Keyword | Oil-gas-water Flow Pressure Gradient Phase Inversion Vertical Pipe Horizontal Pipes Holdup Phase |
Subject Area | 多相流 |
URL | 查看原文 |
Indexed By | SCI ; EI |
Language | 英语 |
WOS ID | WOS:000308262300001 |
Funding Organization | The authors gratefully acknowledge that the work described here was financially supported by both the National Natural Science Foundation of China (No. 10902114) and the second task in the subsea high efficiency oil/gas/water separating and metering device, the special development of national key scientific instruments in China (2011YQ120048-02). |
Department | LMFS多相流及流固耦合(LHO) |
Classification | 二类/Q1 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://dspace.imech.ac.cn/handle/311007/46656 |
Collection | 流固耦合系统力学重点实验室 |
Corresponding Author | Xu, JY |
Recommended Citation GB/T 7714 | Xu JY,Zhang J,Liu HF,et al. Oil-gas-water three-phase upward flow through a vertical pipe: Influence of gas injection on the pressure gradient[J]. INTERNATIONAL JOURNAL OF MULTIPHASE FLOW,2012,46:1-8. |
APA | Xu JY,Zhang J,Liu HF,Wu YX,&Xu, JY.(2012).Oil-gas-water three-phase upward flow through a vertical pipe: Influence of gas injection on the pressure gradient.INTERNATIONAL JOURNAL OF MULTIPHASE FLOW,46,1-8. |
MLA | Xu JY,et al."Oil-gas-water three-phase upward flow through a vertical pipe: Influence of gas injection on the pressure gradient".INTERNATIONAL JOURNAL OF MULTIPHASE FLOW 46(2012):1-8. |
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