核磁共振测深方法在多年冻土区找水中的应用

通过核磁共振测深( MRS)方法在多年冻土区找水实例的分析、解释,并结合钻孔资料的综合研究,对在多年冻土区利用MRS方法探测地下含水层埋深、厚度及地下水涌水量的计算进行了详细的解析,并取得了良好的应用效果。阐明了该方法在多年冻土区找水具有含水信号反映明显、信噪比高和具唯一性解析结果等的独特技术优势,也指出了该方法在判断含水层岩性、涌水量计算等方面存在的不足,揭示了MRS方法在多年冻土区寻找地下水的良好应用前景,为在多年冻土区寻找地下水提供了一定的借鉴经验。

The application of nuclear magnetic resonance (MRS) to the water exploration in permafrost region

Based on the analysis and interpretation of the application of MRS method to water exploration in permafrost region in combi?nation with an integrated study of drilling data, the authors made detailed explanation and analysis of buried depth and thickness of un?derground aquifer as well as calculation of outflow rate of groundwater detected by MRS method and obtained satisfactory application re?sult. This paper expounds the unique technical advantages of MRS method in the water exploration of the permafrost region, such as ob?vious moisture signal reflection, high signal?to?noise ratio and uniqueness of the analytical result, and also points our its weakness in such aspects as determination of lithologic character of the aquifer and the calculation of outflow rate. The results achieved by the au?thors demonstrate the good prospect of the application of MRS method to water exploration in the permafrost region, and provide some reference experience for further work in this aspect.