..., the radius of the capillary, and the concentration and composition of the saturating brine is investigated. A constant value of surface potential is shown to yield plots which exhibit good qualitative agreement with the experimental shaly sand data of Waxman and Smits and Hill and Milburn. By contrast...

... Abstract A simple physical model describing shaly sand conductivity was previously described by Waxman and Smits. The electrical conductivity of a water-saturated shaly sand was expressed as a function of a geometry factor, the brine conductivity, an effective concentration of clay exchange...