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Electric tomography

This technique is based on the electrical characterization of the subsurface from determining the soil resistivity. Apparent resistivity measurements are obtained after induce through a continuous flow to the ground by using two electrodes and measures the difference in potential.

The distribution of the electric potential in the subsoil allows reconstructing the distribution of the electric flow in the subsoil and, therefore, the geometry of the different structures with different electrical resistivity.

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Electric tomography is measuring the resistivity of different lithologies at different depths and lateral positions. Depending on the direction of 2D creation profile, different levels of resistivities can be observed.

Each level with its resistivity is associated with a lithology or a change in the physical characteristics of the field.

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