Subsurface imaging with electrokinetically-induced seismoelectric signals generated by low-frequency seismic waves
- 1Moscow Institute of Physics and Technology, Moscow Institute of Physics and Technology, Lab of the geophysical research of the Arctic, Russian Federation (alexeevgeo@gmail.com)
- 2Schmidt Institute of Physics of the Earth, Russian Academy of sciences, Moscow, Russia, gmb@ifz.ru
- 3Shirshov Institute of Oceanology, Russian Academy of sciences,Moscow, Russia, alexeevgeo@gmail.com
In this study we focus on the coupled macroscopic description of the second-kind seismo-electric (SE) effect in the subsurface structure arising due to low-frequency seismic waves. Starting with the Biot poroelasticity model, we derive the equations of the coupled geomechanical-electromagnetic problem assuming mechanical excitation in the form of seismic waves (primarily Rayleigh waves), and create code for seismoelectric field simulation. We present the results of the feasibility study showing the promising possibilities for determination of non-uniform subsurface structure parameters and allowing a subsurface imaging in terms of rock elastic constants, conductivity and permeability.
The study was supported by the Russian Foundation for Basic Research (Project No. 20-05-00691).
How to cite: Alekseev, D., Gokhberg, M., Pliss, A., Goncharov, A., and Veklich, I.: Subsurface imaging with electrokinetically-induced seismoelectric signals generated by low-frequency seismic waves, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-17980, https://doi.org/10.5194/egusphere-egu2020-17980, 2020
