
Geophysics is
commonly used to map groundwater and find aquifers. Geophysical techniques most
often used in groundwater investigations include seismic
refraction and resistivity soundings. 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: