Geophysical Logging

Mechanical arms measure the borehole diameter.
Diameter variations are used to evaluate fracturing, lithology changes, competency of rock and volume calculations.

Measures the combined conductivity of rock, soil and pore fluid. Inductive method enables logging through PVC casing.
Useful for distinguishing lithology and identifying conductive mineralization.

The dual focused induction probe provides two simultaneous conductivity logs, corresponding to "medium" and "deep" radii of investigation into the formation

Measures formation resistivity using a set of electrodes designed to allow for both a Deep and a Shallow investigation capability.

Measures the in-situ velocity of fluid in a borehole. Can be measured under ambient and dynamic conditions.
Useful for geotechnical and hydrogeological purposes.

Measures the chargeability of the formation.
Useful for detecting disseminated massive sulphides, which will have a higher chargeability compared to their host rock

Measures the amount of magnetic minerals contained within a volume of rock, such as magnetite and pyrrhotite.
Identifies changes in lithology, degree of homogeneity and may indicate a zone of alteration.

Measures the variation of natural radioactivity of the formation.
Important for distinguishing rock types, lithological mapping, stratigraphic correlation and detection of alteration zones.

Full Waveform Sonic tool is used extensively in the groundwater, mining, and geotechnical industries. Sonic logs are widely employed, often in combination with other logs, to provide porosity, permeability, and geo-mechanical properties. This probe is ideal for cased-hole and open hole applications, such as fracture identification and cement bond logging.

Spectral gamma borehole geophysical methods measure natural-gamma energy spectra, which are caused by the decay of uranium, thorium, potassium-40, and anthropogenic radioactive isotopes. Each of these isotopes has a spectral signature that enables its presence to be identified. Regular natural gamma tools provide a total count of natural gamma emissions from these isotopes. The spectral gamma tool measures the energy of the gamma emissions and counts the number of gamma emissions associated with each energy level.