INVESTIGATIONS ON THE RHEOLOGY OF WATER-IN-CRUDE OIL EMULSIONS

被引：0

作者：

Broboana, Diana ^{[1
]}

Balan, Corneliu ^{[1
]}

机构：

[1] Univ Politehn Bucuresti, Dept Hydraul, Bucharest, Romania

来源：

UNIVERSITY POLITEHNICA OF BUCHAREST SCIENTIFIC BULLETIN SERIES B-CHEMISTRY AND MATERIALS SCIENCE | 2007年 / 69卷 / 03期

关键词：

Rheology; Oil-water emulsion; Paraffinic oil; Viscoelasticity; Shearing flow; Oscillatory test; Thixotropy;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The paper is concerned with the experimental investigations and rheological modelling of water-in-oil emulsions. The probes used in experiments are based on two Romanian crude (pure) oils: probe PA is an asphaltic crude oil with 30% water volumic concentration, and probe PB is a paraffinic crude oil with 6% water volumic concentration. Simple shear and oscillatory tests have been performed at temperature of 5 degrees C in order to characterise the rheology of the samples (i.e. dependences of viscosity and elasticity on the shear rate, respectively on the frequency) and to evidence the differences between their flow properties. The study is focused to the paraffin based emulsion and a constitutive relation with unstable flow curve is proposed to model the sample's complex (thixotropy and yield stress) rheological behaviour.

引用

页码：35 / 50

页数：16

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