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About seismic surveys
A seismic survey is based on an energy source that excites seismic (elastic) waves in the subsurface. The seismic waves propagate in the subsurface and are reflected or refracted in the interfaces between mediums, having a different seismic velocity. The reflected and refracted waves are recorded on the surface by an array of receivers (geophones).
The recorded travel times between the source and the geophones, and the geometry of the geophones and the source, enable to obtain information that is processed and interpreted, providing an image of the subsurface.
Geotec carries out a range of measurements using various seismic methods:
- Seismic refraction
- Seismic reflection
- Seismic borehole and cross borehole surveys
