作者: Daniel Paradis , Erwan Gloaguen , René Lefebvre , Bernard Giroux
DOI: 10.1016/J.JHYDROL.2016.02.041
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摘要: Hydraulic tomography is increasingly recognized as a characterization approach that can image pathways or barriers to flow well their connectivity. In this study, we assess the performance of transient analysis tomographic slug test head data in estimating heterogeneity horizontal hydraulic conductivity (Kh), anisotropy (the ratio between vertical and – Kv/Kh) specific storage (Ss) under actual field conditions. The experiment was carried out two wells moderately heterogeneous highly anisotropic silt sand littoral aquifer. proof-of-concept, inversion two-dimensional (2D) dataset computed with 2D radial algorithm considers Kh, Kv/Kh, Ss wellbore effects. This study demonstrated tests able capture key features environment test: profiles Kh Kv are indeed agreement those from other laboratory tests, values exhibit physically plausible profiles. Furthermore, simulation independent inter-well (slug pumping screened over entire aquifer) using resolved Kv/Kh tomograms produce responses very close observations. demonstrates effects fine scale induces K-anisotropy at larger scales be captured through which difficult quantify otherwise conventional thus allowing better representation properties controlling transport aquifer systems.