... of rocks from the time domain solution of the PNP equation. Their simulator provides a complete description of electric field, ionic distribution, dispersion of effective dielectric permittivity, and dispersion of electrical conductivity in porous media. However, a model for the polarization mechanism...

... electrical conductivity electric conductivity voxel interpretation Reservoir Characterization Upstream Oil & Gas time step electric potential electric current flux permittivity current flux permittivity dispersion equation Modeling & Simulation concentration pnp equation conductivity...

... in interpretation of borehole geophysical measurements. Few cuttings from different rock types are sufficient for the proposed method. log analysis Constriction Factor electrical conductivity electric current density well logging water saturation average relative error tortuosity Upstream Oil...

... properties used for the numerical simulations. Table 1 Sandstone rock samples: Summary of the assumed properties used in numerical simulations. Parameters Value Units Electrical conductivity of connate water at 175 °F 20 S/m Electrical conductivity of non-conductive grains at 175 °F...

... to calculate basic features of electrical conduction and fluid flow in image-based models of porous media. 25 , 26 It is quite reasonable, therefore, to ask whether these codes could be applied directly to experimentally determined pore-space microgeometry. The objective of this paper is to benchmark pore...

... Conductivity X Chemical Oxygen Demand X Plant Density X Soil Tests X Water samples were collected five days a week from the sampling port associated with the discharge pipe of each tub. Parameters measured include pH, electrical conductivity, evapotranspiration, flow rates, hydraulic...

... Abstract Using electrical conductivity as a parameter to characterise the curing of cement slurries show promising results. The paper describes how to measure conductivity, including practical observations and gained experience. We found that conductivity as a function of time for each slurry...

... ABSTRACT Rotliegendes sandstones have been found to display a wide range of petrophysical and mechanical properties stress sensitivity behaviour. The extent of stress related changes has been found for permeability, electrical conductivity and Young’s modulus to be related by the depositional...

... dependence upstream oil & gas oil sand wellbore frequency electromagnetic energy thermal method steam-assisted gravity drainage reservoir heating fraction geology specific heat saturation attenuation power attenuation unconventional play equation electrical conductivity algorithm...

... SAGD relation injector scale field test steam drive oil steam ratio Tia Juana field electrical conductivity fraction injection pilot hexagon sand interval hexagon steam injection producer preliminary result Steam Drive Project geology reservoir characterization boiler tritium...

... that in water increases, (4) the sulfonate equivalent weight increases, (5) the average alkane chain length of the oil is decreased, or (6) the temperature decreases. Physical properties of the phases, such as Physical properties of the phases, such as electrical conductivity, density, viscosity, interfacial...

... 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...