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Research Article

A Current Viscosity of Different Egyptian Crude Oils: Measurements and Modeling Over a Certain Range of Temperature and Pressure

Shaimaa Saeed1*, Tarek M Aboul-Fotouh2 and Ibrahim Ashour1,3

1Chemical Engineering Department, Faculty of Engineering, Minia University, Egypt

2Mining and Petroleum Engineering Department, Faculty of Engineering, Al-Azhar University, Egypt

3Environmental Engineering, Zewail city of Science and Technology, 6 of October City, Egypt

*Corresponding Author:
Shaimaa Saeed
Chemical Engineering Department
Faculty of Engineering, Minia University, Egypt
Tel: +20201093015003
E-mail: [email protected]

Received Date: September 07, 2016; Accepted Date: September 30, 2016; Published Date: October 08, 2016

Citation: Saeed S, Aboul-Fotouh TM, Ashour I (2016) A Current Viscosity of Different Egyptian Crude Oils: Measurements and Modeling Over a Certain Range of Temperature and Pressure. J Pet Environ Biotechnol 7:305. doi: 10.4172/2157- 7463.1000305

Copyright: © 2016 Saeed S, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


Viscosity is an important characteristic of crude oil. The viscosity has significant effect for all events in the pipeline transportation of crude oil. The changing in viscosity of crude oil is depending on the temperature, pressure and chemical composition of the crude. In the determination process of crude oil viscosity operations, it is usual to use only temperature dependence of viscosity while the pressure is neglected. Therefore, the essential goal of this study is to obtain a model that can successfully calculate the viscosity in a wide range of temperatures and pressures. Moreover, at this study a mathematical model of changing the current viscosity of Egyptian crude oil with changing of temperature and pressure is determined. Different API gravities of 6 oil samples ranging from 13.4 to 40.4 are tested.

The current viscosity measured at the temperature and pressure ranges from 20 to 140°C and from 14.7 to 132.3 psi. These measurements are determined by using the quartz process viscometer apparatus. The comparison between the experimental data and the calculated values is indicated that the proposed model successfully calculate the experimental data with an average absolute percentage relative error of less than 3 and correlation coefficients of 0.991. It is noted that it’s possible to predict a correlation for the dead crude oil viscosity using temperature and pressure change, because the pressure is important for the viscosity and cannot be neglected.


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