Patent ID: 8138763

Claim:
A method for quantitative separation of electromagnetic induction and induced polarization effects, comprising: measuring of the process of transient over a polarizable medium, modeling of electromagnetic measurements within a horizontally stratified polarizable medium, segregating of an electrodynamic component from transient process, segregating of a galvanic component of induced polarization from transient process, evaluating of changes of the induced polarization galvanic component by area and its geological interpretation, characterized in setting of several input functions dependent on medium parameters and measured on the medium surface, forming of these functions in the way that ensures different manner of their dependence on the electromagnetic induction field and induced polarization field, wherein one of these functions is made to increase an electromagnetic induction and induced polarization ratio as compared to DU(t), the second of these functions is made to decrease the electromagnetic induction and induced polarization ratio as compared to DU(t), and the third of these functions is made as a combination of time and spatial derivatives of the transient field, and further in simultaneous inversion of all the input functions and obtaining of a geoelectrical model of the section, meanwhile the number of the medium parameters which characterize induced polarization is deliberately redundant, so that the obtained medium model is not single, but lies within a certain range of equivalence, then the obtained model polarizability is set to nil for all layers, and through solving the direct problem the electromagnetic induction field (EM) is calculated, simultaneously the wave numbers of the said model are set to nil, and through solving the direct problem the field of the induced polarization (IP) galvanic component is calculated.