文章基本信息

标题：Effect of ultrasonic irradiation treatment on rheological behaviour of extra heavy crude oil: A solution method for transportation improvement
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作者：Mohammad Amin Rahimi ; Mohammad Amin Rahimi ; Ahmad Ramazani S.A 等
期刊名称：Canadian Journal of Chemical Engineering
印刷版ISSN：0008-4034
出版年度：2017
卷号：95
期号：1
页码：83-91
DOI：10.1002/cjce.22676
语种：English
出版社：Chemical Institute of Canada
摘要：Abstract The highly viscous property of heavy oil often causes problems in its transportation in pipelines. Mixing heavy oil with light oil as well as ultrasound treatment are viable solutions to this problem. In this study, extra heavy crude oil samples were first diluted with 0, 0.05, 0.1, and 0.15 mL/mL (0, 5, 10, and 15 vol%) of a light crude oil; then the mixture was irradiated by ultrasonic waves for 0, 5, 10, 15, and 20 min; finally the viscous shear functions of all mixtures was measured at different values of shear rate at different temperature levels. The results revealed that the minimum viscosity of the diluted extra heavy crude oil samples was obtained at 10 min of ultrasonic irradiation. Moreover, the viscosity reduction rate in relation to temperature decreases as temperature increases. In other words, the maximum viscosity reduction rate occurred at 0.05 mL/mL (5 vol%) of light crude oil. Using the experimental data, the parameters of common rheological models were obtained and a new modified Power Law model was presented to calculate the effect of shear rate and temperature simultaneously.
关键词：enheavy crude oilrheological modelultrasonic irradiationviscosity reductionasphaltene