影响地下水矿化度的因素较多,并且相互之间存在着控制作用。地层岩性的电阻率与地下水矿化度之间存在着非线性的反比例关系,而且不同地区的控制作用不同。本文通过研究民勤盆地水文测井的视电阻率资料,分析水质,建立了二者之间的数学模型表达式。对预测本地区地下水水质,指导钻探成井,避免成井风险具有十分重要的意义。 There are many factors affecting the salinity of groundwater, and there is a mutual control between them. There is a nonlinear inverse relationship between the resistivity of formation lithology and the salinity of groundwater, and the control effects of different areas are different. In this paper, by analyzing the apparent resistivity data of the hydrological log in Minqin Basin and analyzing the water quality, the mathematic model expression between the two is established. It is of great significance to predict the quality of groundwater in the region, guide the drilling into well and avoid the risk of going to the well.