Depth-dependent relation between hydraulic conductivity and electrical resistivity in geologic formations

摘要: Abstract Predictability of groundwater flow and transport models greatly relies on adequate characterization aquifer heterogeneity such as hydraulic conductivity (K), porosity (ϕ) etc. The traditional model combining Archie formula Kozeny-Carman equation (thus called AKC in this study) has been proven a large number studies to be helpful evaluation K through electrical resistivity (Re). However, does not take into account the widely-reported dependence depth, thus often fails deep formations (>100 m), was observed our study. In order consider impact depth K-Re relation, new (called LAKC model) introduced, which combined Louis decay with model. effectiveness verified against measurements from stratified pumping tests applied real northern Ordos Basin, China. results revealed that can characterize depth-dependent relation properly calibrated is capable providing estimates based detailed Re similar context lithology.