Indirect estimation of electrical resistivity by abrasion and physico-mechanical properties of rocks

In this sense, it was found that water content, porosity, and the ratio of Vp/Vs have significant effects on the electrical resistivity. Moreover, we report that indirect tensile strength and static elastic modulus indirectly control the electrical characteristics of rocks, since reasonable correlations exist between them. Nevertheless, the reliability of the effect of rock abrasion on the resistivity could not be confirmed with a high degree of certainty. More data are needed to check its validity. Thus, we conclude in light of statistical analyses that the results of the tests and the relationships are statistically significant. For this reason, the electrical resistivity of the intact rock can be indirectly estimated by accounting for the physico-mechanical properties for a given formation. However, rock abrasion cannot be considered for the same purpose.