DC Apparent Resistivity Evaluation on 3D Structures – A Numerical Geometric Factor Approach

P020 DC APPARENT RESISTIVITY EVALUATION ON 3D STRUCTURES: A NUMERICAL GEOMETRIC FACTOR APPROACH Summary 1 This paper presents a numerical evaluation of the geometric factors used for the computation of apparent resistivities in the context of non-destructive or petrophysical investigations in laboratory or in the field when no inversion can be carried out. Apparent resistivities are evaluated using a numerical geometric factor calculated using a finite element algorithm. An example illustrates the simulation of a resistivity survey on a water tank. Topographic artefacts and effects of material sample shapes are successfully removed and reliable apparent resistivity images of the structures