What is Seismic Data Acquisition?
Terrex services the mining and resources sector by conducting 2D, 3D and 4D seismic surveys to image geology from near surface shallow coal seams (30m - 1km) to deep crustal basement (50km) and everything in between.
Seismic data acquisition involves applying a seismic energy
source, such as a vibroseis truck or shot-hole dynamite at discrete
surface location. The resulting energy is reflected back from
interfaces where rock properties change.
By recording this reflected energy at an array of geophones
placed in the ground surface, the results can be processed to
produce an image of underground geological structures and a range
of attributes that can be used to infer the physical rock
properties. Surveys
can be conducted along lines to produce a vertical profile (2D
survey) or over an area to generate a 3D sub-surface volume.
Terrex Seismic operates up to four seismic vibrators on each of
its seismic crews using a the Sercel 428XL Seismic Recording System
with Sensor SM24 10Hz Geophones.