Identification of Hydrogeological Parameter in Double-Porosity Fractured Aquifer Based on Single-Well Pumping Test
Wei Shiyi
Wan Junwei
Sun Wei
Huang Kun
Guo Xulei
Liu Zhiming
Abstract：To find out a suitable equation for single-well pumping test in double-porosity aquifer,it takes wellbore storage effect into consideration and present the double-porosity non-Darian model with wellbore storage effect based on double-porosity non-Darcian model in this study.Taking a single-well pumping test as an example,the results show that the simulation curve has the highest accuracy when using the double-porosity non-Darcian model proposed in this study;taking non-Dacian effect into consideration is more suitable when the pumping rate is relatively large and the flow in aquifer shows non-Darcian property.When considering non-Darcian effect,we can have a better inversion of the instantaneous drawdown in early time;when regarding the aquifer as double-porosity,we can portray the weak to strong process of the water exchange in fracture and porosity media.In that case,the double-porosity non-Darcian model with wellbore storage effect presented in this study is suitable for single-well pumping test in double-porosity aquifer.
Keywords：single-well pumping testdouble-porositynon-Darcian flowwellbore storage effectengineering geologyhydrogeology
Publication Date：2025-11-30
Online Publishing Date：2025-12-15(First online date of this platform, not the publication date of the document)
Pages：9( 4531-4539 )