Techniques

Seismic Refraction

Seismic technique is one of the most developed geophysical techniques, providing vital information on subsurface, crucial for most of ...

Electrical Resistivity Imaging

2D Resistivity Imaging uses an array of electrodes (typically 64) connected by multicore cable to provide a linear depth profile, or pseudosection...

Refraction Micro-tremor

PARSAN also has launched for the first time in India, innovative technique of ReMi (Refraction Micro-tremor) having distinct edge over MASW and SASW...

Crosshole/Downhole/Uphole Surveys

The primary purpose of obtaining crosshole data is to obtain the most detailed in situ seismic wave velocity profile for site-specific investigations...

Ground Penetrating Radar

Ground Penetrating Radar, also known as GPR, Georadar, Subsurface Interface Radar, Geoprobing Radar, is a totally non-destructive...

Induction Locator

Radio-detection uses the principles of electromagnetic to detect underground utilities. This principle works on the basis that a current flowing ...

Micro Gravity Surveys

Gravimetry is a potential field technique which measures variations in the Earth's gravitational field. These variations are caused by density contrasts...

Seismic Tomography

Borehole Seismic Tomography is used to derive an image of seismic velocity between two or more boreholes by measuring travel time between source and receivers...

Downhole Seismic

Downhole seismic surveying is an important field method for determining key in-situ subsurface information for earthquake...

Electromagnetic Surveys

The electromagnetic (EM) technique is based on the response of the ground to the propagation of an electromagnetic field created by the survey instrument...

Gravity and Magnetic Surveys

Gravity Method is a potential field technique which measures variations in the Earth's gravitational field. These variations are caused by density contrasts...