CGi Technical services does not offer in-house geophysical services but has numerous vendors with which we work that can provide those specialty services when needed.  CGi Technical Service's personnel have worked with a wide verity of geophysical specialists to evaluate numerous subsurface conditions.  in association with our subconsultants, we can provide the following services.

- Seismic refraction surveys to image subsurface profiles and estimate rippability potential
- Geophysical reflection surveys over land or water to obtain relatively detailed subsurface geologic profiles.
- Electrical resistivity, including pole-dipole and dipole-dipole surveys (especially useful to evaluate the location of voids, such as lava tubes)
- Electromagnetic methods
- Ground penetrating radar for imaging near surface conditions
- Magnetometer surveys
- Vibration surveys and monitoring
- Downhole caliper logging
- Downhole natural gamma logging
- Downhole resistivity
- Downhole sonic logging
- Acoustic televiewer
- BIPS downhole digital video