f Complex conductivity of sandstones between 10-4 Hz and 10-6 Hz

Transport properties of rocks, such as permeability or electrical conductivity are of great interest to the studies of reservoir engineering. Electrical conductivity is related to porosity and fluid saturation of the rock. Electrical conductivity is also a function of permeability, but the relationship between these two parameters is not universally predictable by a standard mathematical equation. The study of electrical properties provides information on pore geometry and pore surface area, because both the transport of free charge carriers in the pore space and polarization at the poregrain interfaces contribute to the total conductivity. This work focuses on complex conductivity because this parameter is related to the microgeometry of rocks, and possibly to the fractal nature of the internal surfaces, so that there is potentially an important source of information in the frequency dependence of electrical properties.