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Structure of waxy crude oil emulsion gels

Journal of Non-Newtonian Fluid Mechanics, 2008
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Romano Lapasin
exaly   +5 more sources

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Characterization of Libyan Waxy Crude Oils

Energy & Fuels, 2010
The prediction of wax formation and the understanding of the physicochemical characteristics of the wax phase are of major importance in flow assurance. The characterization of the oil and wax can provide useful estimates of the parameters and behavior required for operational engineering process developments and/or physical modifications to the ...
Alghanduri, L.M., Elgarni, M.M., Daridon, Jean-Luc, Coutinho, Joao   +3 more
openaire   +2 more sources

Mathematical Models for Waxy Crude Oils

Meccanica, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
FASANO, ANTONIO, FUSI, LORENZO, CORRERA S.   +2 more
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Rheology of Waxy Crude Oils

Proceedings of International Meeting on Petroleum Engineering, 1988
ABSTRACT Crude oils from China, Australasia and many other parts of the world, containing waxy crystals and colloidal asphaltenes, possess distinct non-Newtonian flow properties which depend strongly on the shear and thermal history and result in special difficulties being encountered in all types of viscometers.
L. T. Wardhaugh, D. V. Boger, S. P. Tonner   +2 more
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The Yielding of Waxy Crude Oils

Industrial & Engineering Chemistry Research, 1998
The yielding process of statically cooled waxy crude oil was examined in detail. Three direct measurementsa controlled stress test, a creep−recovery test, and an oscillatory testwere employed using a controlled stress rheometer to investigate the yielding of two distinctly different statically cooled waxy crude oils. The results showed that yielding of
Chang, Cheng, Boger, David V., Nguyen, Dzuy Q.   +2 more
openaire   +1 more source

Electrorheological behaviors of waxy crude oil gel

Journal of Rheology, 2021
The paraffin molecules in crude oil crystalize and precipitate out as the oil cools, resulting in a sharp increase in oil viscosity and further the gelation of the oil. The waxy crude oil gel exhibits complex rheological behaviors, such as viscoelasticity, yield stress, and thixotropy, posing challenges to the flow assurance of pipelines.
Qian Huang, Hongying Li, Yiwei Xie, Yifei Ding, Yu Zhuang, Chaohui Chen, Shanpeng Han, Jinjun Zhang   +7 more
openaire   +1 more source

Numerical investigation of melting of waxy crude oil in an oil tank

Applied Thermal Engineering, 2017
Abstract A safe and economic waxy crude oil melting scheme is an important issue in oil tank storage, and thus a better understanding of the melting mechanism of waxy crude oil in the tank is necessary to develop a scientific scheme for melting. With the consideration of wax precipitation and non-Newtonian behavior, this paper establishes physical ...
Tao Zhang, Dongliang Sun
exaly   +3 more sources

PIPELINE FLOW OF WAXY CRUDE OILS

The APEA Journal, 1992
The various methods for handling waxy crude oils at temperatures below the pour point have been difficult to assess quantitatively owing to the lack of reliable measurement techniques for properties such as the non-Newtonian viscosity and yield stress. Research undertaken at The University of Melbourne has been aimed at the development of reproducible ...
L.T. Wardhaugh, D.V. Boger
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Viscoelasticity of gelled waxy crude oil

Journal of Central South University of Technology, 2007
When the temperature of waxy crude oil is below the wax precipitation temperature, wax will precipitate out from oil solution. On further cooling, more and more wax crystals separate out and interlock to form a network that entraps liquid oil into its structure, resulting in gelation of the crude oil.
Lei Hou, Jin-jun Zhang
openaire   +1 more source