The use of electrokinetic phenomena in the autonomous generation of electrical energy in geological exploration

Abstract The impossibility of regular use of storage devices during geological exploration (battery, power supply) makes the use of renewable energy sources relevant. The article presents a theoretical study of electrokinetic phenomena, which consists in the fact that in dispersed materials of dielectric nature, a double electric layer appears at the interface of a solid dispersed dielectric — water, the cause of which is polyunsaturated bonds on the surface of a fragmented dielectric, attracting water molecules from the surrounding space. The thickness of the double electric layer is no more than 3-5 diameters of the water molecule. When an external electric field is applied to this system, the double electric layer moves, dragging the surrounding water with it — water mass transfer occurs in a stationary porous «diaphragm». This phenomenon of creating hydraulic pressure under the action of an electric field is called electroosmosis. The reverse phenomenon of electroosmosis is called osmo-EMF. To assess the potential possibility of extracting electrical energy from aquifers, it is necessary to determine not only the colloidal characteristics of the dispersed phase of the membrane, but also the filtration characteristics of this soil. To select an electricity-producing reservoir, it is obviously necessary to set the electrical power of the source and the necessary EMF. A scheme of an electroosmotic generator is proposed, with the help of which it is possible to obtain a potential difference of electric energy EMF for powering various instruments of a geological expedition in field conditions. The results obtained in the course of the study can be applied in practical situations, based on the data given in the tables, as well as on the calculations performed.

Porsev E. G., Borzenkov A. N., Abramov E. Yu., Chernov A.A., Rozhkova M. V. The use of electrokinetic phenomena in the autonomous generation of electrical energy in geological exploration. MIAB. Mining Inf. Anal. Bull. 2023;(10-1):141—155. [In Russ]. DOI: 10.25018/0236_1 493_2023_101_0_141.

Porsev E. G.¹, assistant, e-mail: porsev@corp.nstu.ru, аutorId: 413591;
Borzenkov A. N.¹, junior research assistant,
Abramov E. Y.¹, assistant, e-mail: e.abramov@corp.nstu.ru, ORCID ID: 0000-0002-50133288;
Chernov А. А.¹, junior research assistant;
Rozhkova M. V.¹, senior lecturer, e-mail: rozhkova@corp.nstu.ru, ORCID ID: 0000-00015039-2039;
¹ Novosibirsk State Technical University, 630073, Novosibirsk, Russia.

Porsev E. G., e-mail: mbv5@mail.ru.

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