Brantax - engineering survey

underwater, underground
and surface investigation

Dawnhole and crosshole

Down-hole (DH) and cross-hole (SH) seismic methods involve measuring the time required for P and S waves to travel from seismic source, located at the ground surface or in drilling, to the receptors placed in another drill.

Down holeCross hole

These seismic methods assume the existence of one or more wells for the investigations. These seismic investigations may well highlight stratification characteristics and the layers traversed by drilling.

Once processed seismic data can be obtained: the average density, depending on the speed and depth, Poisson’s ratio, modulus of compressibility endometrium, Young’s modulus and modulus of compressibility volume.