Rheological Behaviour of Water-in-Light Crude Oil Emulsion

3rd International Conference on Global Sustainability and Chemical Engineering

工业技术;化学工业

Husin, H.^1,2 ; Taju Ariffin, T.S.^1 ; Yahya, E.^1

Department of Oil and Gas Engineering, Faculty of Chemical Enginering, University Teknology MARA, Selangor Darul Ehsan, Shah Alam

40450, Malaysia^1

Core of Frontier Materials and Industry Applications, Universiti Teknology MARA(UiTM), Shah Alam, Selangor Darul Ehsan

40450, Malaysia^2

关键词: Correlation coefficient;    Different densities;    Herschel-Bulkley model;    Rheological behaviour;    Rheological studies;    Shear-thickening behavior;    Water in oil emulsions;    Water volume fraction;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/358/1/012067/pdf
DOI  :  10.1088/1757-899X/358/1/012067

学科分类：工业工程学

来源: IOP

【 摘 要 】

Basically, emulsions consist of two immiscible liquids which have different density. In petroleum industry, emulsions are undesirable due to their various costly problems in term of transportation difficulties and production loss. A study of the rheological behaviour of light crude oil and its mixture from Terengganu were carried out using Antoon Paar MCR 301 rheometer operated at pressure of 2.5 bar at temperature C. Water in oil emulsions were prepared by mixing light crude oil with different water volume fractions (20%, 30% and 40%). The objectives of present paper are to study the rheological behaviour of emulsion as a fuction of shear rate and model analysis that fitted with the experimental data. The rheological models of Ostwald-De-Waele and Herschel-Bulkley were fitted to the experimental results. All models represented well the rheological data, with high values for the correlation coefficients. The result indicated that variation of water content influenced shear rate-shear stress rheogram of the prepared emulsions. In the case of 100% light crude oil, the study demonstrated non-Newtonian shear thickening behavior. However, for emulsion with different volume water ratios, the rheological behaviour could be well described by Herschel-Bulkley models due to the present of yield stress parameter (R2 = 0.99807). As a conclusion, rheological studies showed that volume water ratio have a great impact on the shear stress and viscosity of water in oil emulsion and it is important to understand these factors to avoid various costly problems.