Determination of fluid transmissivity and electric transverse resistance for shallow aquifers and deep reservoirs from surface and well-log electric measurements

摘要

Fluid transmissivity (layer thickness times permeability) and electrictransverse resistance (layer thickness time resistivity) are important parameterin groundwater and hydrocarbon exploration. Determination of these parametersprovides a good knowledge of the potential of porous media, because they relatefluid flow to electric-current conduction, in terms of layer thickness,permeability and resistivity. In this study, both parameters were determined forshallow aquifers (Schleswig-Holstein, northern Germany) and deep reservoirs(Jeanne d'Arc Basin, offshore of eastern Canada), utilizing surface and well-logelectric measurements. Direct relationships between both parameters, withcoefficients of correlation of 0.99 (for the aquifers) and 0.94 (for thereservoirs), were obtained. The relationships suggest that an increase in bothparameters indicate presence of zones of high fluid potential within theaquifers and the reservoirs.