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Problems concerning the calculation of mineralization intensity of strata water by means of self-potential curves


, : Problems concerning the calculation of mineralization intensity of strata water by means of self-potential curves. Geophysical and Geochemical Exploration 9(5): 377-384

Taking into account the characteristics of hydrogeological and hydrologic logging, the author has examined the commonly-used equations for calculating mineralization intensity or resistivity of strata water by means of self-potential curves, and then puts forward a calculation method and formula suitable for high-requirement hydrogeological logging work. It is considered that, of quite a few factors affecting the diffusion-adsorption coefficient kt, the variation in chemical composition and combination ratio of the solutions seems to be most important. Through statistical analysis, parameters of a, b, and kt for mixed solutions with different saline compositions are obtained, the physical implications of these parameters are clarified, and the reasonable acquisition of numerical values in practical work is discussed. Finally, the effectiveness of this method is illustrated with the help of practical data and comparison by diagrams. This leads to an extension of the scope of its application.

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