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Estimation of TDS in Sand Aquifer Water Through Resistivity Log
Author(s) -
Guo Yao An
Publication year - 1986
Publication title -
groundwater
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.84
H-Index - 94
eISSN - 1745-6584
pISSN - 0017-467X
DOI - 10.1111/j.1745-6584.1986.tb03707.x
Subject(s) - aquifer , electrical resistivity and conductivity , groundwater , geology , total dissolved solids , hydrology (agriculture) , soil science , water well , mineralogy , environmental science , geotechnical engineering , environmental engineering , electrical engineering , engineering
An empirical relationship between aquifer resistivity and total dissolved solids (TDS) in ground water of sand aquifers has been observed. Aquifer resistivity is determined through resistivity log in lateral array with electrode spacing of 2.5 meters. Using the relationship, the TDS in each aquifer can be estimated separately from its resistivity log curve. The TDS values thus arrived at since 1968, when compared with actual TDS content in ground water of more than a thousand sand aquifers encountered in 400 wells drilled in North China Plain, showed errors ranging up to ± 0.3 gram per liter, except in the case of two wells where it was 0.8 and 0.9 gram/liter, respectively.