水文测井主要是对含水层进行定位、定厚。方法以自然扩散法为主,指示剂以食盐为主。采用电极系为专用的井液电阻率计,其原理与视电阻率法电极相同,只是结构不一样,电极距很小,外加金属壳屏蔽,仅能反映井液的电阻率变化。根据自然扩散法曲线的变化形态,除对含水层(富水带)进行定位、定厚外,更重要的是利用水文 Hydrological logging is mainly for aquifer positioning, set thickness. The method is based on natural diffusion and the indicator is salt. The use of electrodes as a dedicated well liquid resistivity meter, the principle and apparent resistivity method the same electrode, but the structure is not the same electrode distance is small, plus metal shield, only to reflect the well fluid resistivity changes. According to the natural diffusion curve of the changing patterns, in addition to the aquifer (water-rich zone) positioning, set thickness, more importantly, the use of hydrology