Ground Water Exploration

Question 1

The investigation of underground formations to understand the hydrological cycle, know the groundwater quality, and identify the nature, number, and type of aquifers

Answer 1

Groundwater exploration

•Rapid and much effective in estimating aquifer thickness of an area and is a cost effective technique for groundwater study

• Aims to study and understand hydrological cycle of the region, to have an overall concept about the type, nature and number of aquifers and the quality of groundwater

Question 2

Usually, the groundwater exploration projects pass through the phase of:

Answer 2

✓ Regional surveys
✓ Detailed surveys
✓ Exploitation of groundwater by means of bore holes and wells

Question 3

Exploration of groundwater

Answer 3

Surface and subsurface exploration

Question 4

-non-invasive ways to map the subsurface.
-less costly than subsurface investigations.

Answer 4

Surface exploration

Methods of surface exploration:
1. Geologic Methods
2. Remote Sensing
3. Surface Geophysical Methods
Electric resistivity method
Seismic refraction method
Seismic reflection method
Gravimetric method
Magnetic method
Electromagnetic method

Question 5

Studying and investigation of underground layers of earth’s crust through methods of drilling, geophysical surveys, and sampling.

Answer 5

Subsurface exploration

1. test drilling
   Geologic log
   Drilling time log
   Water level measurement
2. Geophysical logging/borehole geophysics
   Resistivity logging
   Spontaneous potential logging
   Radiation logging
   Temperature logging
   Caliper logging
   Fluid conductivity logging
   Fluid velocity logging
3. Tracer tests

Question 6

Systematic studies conducted over large geographical areas to map and understand the geological features, structures, and resources of a region.

Answer 6

Regional surveys

Question 7

Involve in-depth investigations conducted over smaller areas to provide comprehensive information about the geological features, structures, and resources with higher resolution and accuracy.

Answer 7

Detailed surveys