In petrophysics, archie's law is a purely empirical law relating the measured electrical conductivity of a porous rock to its porosity and fluid saturation. In the preliminary stages of the development of the formation evaluation technique, archie (1942) proposed a set of equations establishing the quantitative relationship. One of the most known ways to calculate water saturation is through archie's equation.
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In shaly sands the clays.
It introduces archie's equation which relates formation resistivity.
The porosity exponent (m) is one of the most critical parameters of archie's equation and plays a significant role in quantitative evaluation of petroleum reservoirs. The aim of this study is to investigate the exponents of the archie equation in order to support the evaluation of hydrocarbon or groundwater reserves through. This document discusses archie's law and equations for determining formation resistivity and saturation from well log data.
