Speculation of salinity and heterogeneity for some dry and saturated sandstone rocks

Abstract

Salinity and conductivity are related because dissolved ions increase both salinity and conductivity. The variation of heterogeneity can significantly affect the electrical properties of materials. The main change in electrical properties is related to the conductor concentration, but this change does not increase monotonically with the concentration due to heterogeneity. Sandstone samples were gathered parallel to the layer direction and perpendicular to it. Electrical parameters were obtained at room temperature at rates ranging from 42 Hz to 5 MHz for distinct salinities. Heterogeneity is carried out by deformation of the grain shapes and changes in the components and compositions of the material. Loading pressure will cause grain deflection (anisotropy), and electrical properties change as a consequence. Samples were measured in parallel and perpendicular layers of precipitation (for anisotropy and isotropy measurements) and at different salinities. When a layer is heterogeneous, the electrical characteristics change in both perpendicular directions. The effect of electrical characteristics increases as salinity concentration is increased.