Groundwater
Geophysics is
commonly used to map groundwater and find aquifers. Geophysical techniques most
often used in groundwater investigations include seismic
refraction, time domain electromagnetics, gravity, and resistivity
profiling. Seismic refraction determines the depth to the water table and
the depth to hard bedrock. Resistivity soundings are used to determine the clay
content of the aquifer. Combining these techniques finds the best locations for
drilling.
After a well is
drilled, borehole geophysics maps the geologic layers the well penetrated.
Geophysical well logs help determine the best screen intervals for production.
Surface and borehole geophysics result in more productive wells and lower
drilling costs.
J
R Associates,
Ph: