Impact of the electromagnetic field on the properties of porous materials containing complex colloidal mixtures of organic compounds | Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika – Tomsk State University Journal of Mathematics and Mechanics. 2025. № 98. DOI: 10.17223/19988621/98/8

Impact of the electromagnetic field on the properties of porous materials containing complex colloidal mixtures of organic compounds

A number of studies have examined the influence of electromagnetic fields (EMFs) on petroleum liquids. An interesting problem is to investigate the behavior of these liquids in porous media due to the presence of complex hydrocarbons. This paper investigates the features of the viscous oil flow in porous-medium models under EMF exposure. The main component of the experimental setup was a cell with electrodes positioned both across and along the flow direction. It was found that the maximum value of the dielectric loss tangent was reached at a frequency of 5 MHz. The dynamic viscosity coefficient increased after EMF exposure, indicating structural changes in the oil. The fluid flow rate was measured as a function of temperature at different pressure levels. The application of the field led to a decrease in the flow rate compared to filtration without exposure. Considering the design features of the micromodel and the measured dynamic viscosity coefficient, it was assumed that the effect was caused by the dielectrophoretic forces acting on the polar components of the oil and their structural transformation. Such a reduction of the flow rate can be explained by the increased dynamic viscosity and deterioration of the filtration characteristics of the porous medium, which results in a blocking effect in the local areas closest to the electrodes, where the highest electric-field-strength gradient is formed.

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Keywords

filtration, permeability, dynamic viscosity coefficient, alternating electromagnetic field

Authors

Name	Organization	E-mail
Valiullina Vilena I.	Ufa University of Science and Technology	valiullina.vilena@mail.ru
Galeev Rushan R.	Ufa University of Science and Technology	galeevr93@gmail.com
Zinnatullin Rasul R.	Ufa University of Science and Technology	rasulz@yandex.ru
Musin Ayrat A.	Ufa University of Science and Technology	mus-airat@yandex.ru
Kovaleva Liana A.	Ufa University of Science and Technology	liana-kovaleva@yandex.ru

Всего: 5

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