Estimation of hydraulic parameters in a complex porous aquifer system using geoelectrical methods

被引:44
|
作者
Kazakis, N. [1 ]
Vargemezis, G. [2 ]
Voudouris, K. S. [1 ]
机构
[1] Aristotle Univ Thessaloniki, Dept Geol, Loh Engn Geol & Hydrogeol, Thessaloniki 54124, Greece
[2] Aristotle Univ Thessaloniki, Dept Geol, Lab Appl Geophys, Thessaloniki 54124, Greece
关键词
Hydrogeophysics; Hydraulic conductivity; Electrical resistivity; Porous aquifer; Anthemountas basin; Greece; ARCHIES CEMENTATION FACTOR; CONDUCTIVITY; PERMEABILITY; TRANSMISSIVITY; POROSITY; MODEL;
D O I
10.1016/j.scitotenv.2016.01.133
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Geoelectrical methods have been widely used for the estimation of aquifer hydraulic properties. In this study, geoelectrical methods were applied in a lithologically and hydrochemically complex porous aquifer to estimate its porosity, hydraulic conductivity and transmissivity. For this purpose, the electrical resistivity of the aquifer as well as the electrical conductivity of the groundwater was measured in 37 sites and wells. Initially, the Archie's law was used to generate sets of cementation factor (m) and alpha (alpha) parameter from which the mode values of alpha = 0.98 and m = 1.75 are representative of the studied aquifer. The transmissivity of the aquifer varies from 5.1 x 10(-3) to 3.1 x 10(-5) m(2)/s, whereas the mean value of its porosity is 0.45. The hydraulic conductivity of the aquifer which was calculated according to Archie's law varies from 2.08 x 10(-6) to 6.84 x 10(-5) m/s and is strongly correlated with the pumping test's hydraulic conductivity. In contrast, the hydraulic conductivity which was calculated using Dar-Zarrouk parameters presents lower correlation with the pumping test's hydraulic conductivity. Furthermore, a relation between aquifer resistivity and hydraulic conductivity was established for the studied aquifer Lo enable the estimation of these parameters in sites lacking data. (C) 2016 Elsevier B.V. All rights reserved.
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页码:742 / 750
页数:9
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