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Title:
Experimental Investigation on Yield Stress of Water-in-Heavy Crude Oil Emulsions in Order to Improve Pipeline Flow
Author: Zhang J(张健); Xu JY(许晶禹); Gao, MC
Source: JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
Issued Date: 2014-04-03
Volume: 35, Issue:4, Pages:593-598
Abstract: An experimental study on yield stress of water-in-heavy crude oil emulsions has been carried out by using a HAAKE RS6000 Rheometer with a vane-type rotor. Several factors such as oil volume fraction, shear rate, temperature, and emulsifying agent on the yield stress of emulsions were investigated. Zero shear viscosity of heavy crude oil was 6000mPas at 30 degrees C, with a density 955kg/m(3). This study shows that the yield stress increases linearly with the increasing shear rate, and displays an exponential decay with increasing the temperature and oil volume fraction. Although the addition of emulsifying agent enhanced the stability of the emulsion, to some extent it also increased the yield stress, especially for the emulsions with high oil volume fractions. Therefore, to reduce the start-up force for the pipeline transport of water-in-heavy crude oil emulsions, the starting rate should be decreased, temperature increased, or oil volume fraction increased. These results are helpful to improve the transportation of water-in-heavy crude oil in pipeline.
Keyword: Pipeline flow ; water-in-heavy crude oil emulsions ; yield stress
Language: 英语
Indexed Type: SCI ; EI
Corresponding Author: Xu, JY (reprint author), Chinese Acad Sci, Inst Mech, LMFS, Beijing 100190, Peoples R China.
Correspondent Email: xujingyu@imech.ac.cn
Related URLs: 查看原文
WOS ID: WOS:000334073200017
ISSN: 0193-2691
Rank: [Zhang, Jian; Xu, Jing-yu; Gao, Meng-chen] Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Sysytems, Beijing 100190, Peoples R China
Subject: Chemistry
Department: LMFS多相流及流固耦合(LHO)
Classification: Q4
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/48884
Appears in Collections:流固耦合系统力学重点实验室(2012-)_期刊论文

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Recommended Citation:
Zhang J,Xu JY,Gao, MC. Experimental Investigation on Yield Stress of Water-in-Heavy Crude Oil Emulsions in Order to Improve Pipeline Flow[J]. JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY,2014-04-03,35(4):593-598.
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