论文部分内容阅读
为了准确地确定含水层,提高矿区水文地质工作质量和研究畲水层与铀矿化的关系,自 1980年以来,我工区开展了井液电导测井工作。利用电导测定含水层的理论依据是:用人工方法使井液均匀盐化。由于地下水的运动,造成含水地段井液离子浓度的稀释,导致水中电导值的改变。根据电导值的变化,即可确定含水层。但是我们在实际工作中曾多次发现,电导值的变化受岩性和矿物成分影响很大,防碍了正确地确定含水层。为了解决这个问题,对一些常见矿物作了室内试验,结果表明:方解石和灰岩等碳酸盐类矿物能使电导值增加,对电
In order to accurately determine the aquifer, improve the quality of mining hydrogeology work and study the relationship between She water layer and uranium mineralization, since 1980, our work area has conducted well liquid conductivity logging work. The theoretical basis for the determination of aquifers using conductivity is that they are homogenized well by manual methods. Due to the movement of groundwater, dilution of the ion concentration of the well fluid in the water-bearing section results in a change of the conductance value in the water. According to the conductance changes, you can determine the aquifer. However, we have found many times in actual work that the change of conductance value is greatly influenced by lithology and mineral composition, which hinders the correct determination of the aquifer. In order to solve this problem, some common minerals were tested indoors. The results show that the carbonate minerals such as calcite and limestone can increase the conductivity,