Measurements typically gather information about variations in the physical parameters of the rock along the length of the borehole. Measurable parameters include full wave sonic, magnetic susceptibility, resistivity and induced polarization, dual laterolog, natural gamma, density, radioactivity, and fluid temperature and conductivity.
The results of borehole logging yield data concerning lithological units and their contacts (e.g., ore vs. barren rock), geological structures, and petrophysical properties of the rock mass.
At the moment, measurements can be taken down to a depth of 2400 meters, but Geovisor is currently developing measurement technology for very deep boreholes. The diameter of the boreholes can vary, as the sensors are always centered using appropriate centralizers for the borehole size. Some methods require a water-filled borehole, but some measurements can be performed in dry boreholes.
We use the following sensors: ALTQL40: FWS, MGS, IP, GR, DLL3, and FTC – for more detailed information about these, please contact our experts.
For directional drilling surveys, we employ measurement-while-drilling (MWD) tools from Reflex, for example, the REFLEX EZ-GYRO.
We have a very comprehensive selection of various sensors used in borehole logging, but if needed, you can still ask us about alternative equipment. We have excellent connections with equipment rental companies and a wide network of partners. Our staff has diverse experience with various geophysical equipment.
The customer always receives quality-assured raw data from the measurements. In addition, we perform data processing, analysis, and reporting as agreed.
Reporting at the agreed-upon level and customer familiarization with the research results are carried out as agreed.
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