Formation Factor and Permeability Equations
Formation Factor and Permeability Equations
复制标题
地层因子和渗透率方程
作者:
R. J. Millington;J. Quirk
N AT URE April ll, 1964 VOL. 2O2 in which F", formation factor, was related to the effective area and porosity. The formation factor is the ratio of the resistivity of a porous bed saturated with a conducting electrolyte to the resistivity of the electrolyteº. D/D, is the ratio of the apparent diffusivity of either an ion or a gas in a porous medium to the diffusivity of the same ion or gas in water or air respectively. Hence equations (1) and (2) can be re-written: