Analysis on applied effectiveness of near-surface aquifers exploration with NMR technique in North Western arid area
Yang Guixin
Wu Yi
Guo Jianqiang
Zhu Qingjun
Abstract：The surface NMR technique prospecting groundwater is a new applied field,which is an only technique for a direct detection of groundwater in the world at present. NMR instrument allows invasive measurements of a NMR signal from subsurface water-saturated layers. Direct measurement of the signal from water molecules guarantees a high reliability of water detection. Interpretation of experimental date reveals location of aquifers, their depth and water content. Mean size of water-saturated rock pores can also be estimated. Sine the NMR instrument was introduced into our institute in 1999, It had been used to test the different near-surface aquifers explorations in the loess land of Shanxi Pr. and the south of Ningxia Pr., and a certain field results were obtained. Based on analysis of these results, this article discusses on the existing problem of the prospecting reliability in strong noises background, and the prospecting results comparison using a transmitting antenna of square loop and figure 8 shaped loop at the same testing site.
Keywords：NMRGroundwaterNear-surfaceShanxiNingxia
Publication Date：2000-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 51-55 )