Geophysical techniques applied to aquifer hydrodynamics

The Department of Applied Geophysics, Charles University in Prague, has contributed to the solution of hydrogeologic tasks since the 1960s. At present, research on well log analysis techniques is focused on providing a basis for protection and optimization of withdrawals from both surface and ground waters. Well-logging methods applied to hydrogeologic formation evaluation provide information on the reservoir properties of the penetrated rocks, groundwater quality and groundwater flow. This manuscript presents a discussion of some geophysical techniques used for logging fluid-movement. In addition, application and verification of the methods under various geologic and hydrogeologic conditions are provided to demonstrate the effectiveness of logging for hydrogeological investigations.