Product/Process
: Process to prospect ground water resources.
Application/Use:Dugwells, borewells for drinking/irrigation
water.
Salient Features
of Process/Technology :
Exploitation of groundwater resources is well established
since time immemorial. The proposecting of ground water has
so far been based on ad hoc methodology. The modem scientific
approach employs the study of resistivity contrast and density
contrast to delineate water bearing underground geologic structures.
The resistivity survey is based on the principle that water
alters the electrical resistivity and enhances the pattern
of electric current flow. Data on earth's resisistivity and
spontaneous polarisation potential is used in water prospecting.
The technology is very useful in prospecting water resources.
Resistivity meter surveys are reported to provide a 90% success
ratio.
Status of Commercialisation
: Extensively used for prospecting ground water.
Equipment and
Machinery :DC electrical
resistivity meter. Approx. cost of a resistivity meter: Rs.
0.10 lakh
For Further Information. Please
Contact:
The Director,
National Geophysical Research Institute.
