Borehole Geophysics is the science of recording and analyzing measurements of physical properties made in wells or test holes. multiVIEW utilizes Borehole Geophysics in groundwater and environmental investigations to obtain information on:
- well construction
- rock lithology and fractures
- permeability and porosity
- water quality
How does Borehole Geophysics work?
The geophysical logging system consists of probes, cable and draw-works, power and processing modules, and data recording units. State-of-the-art logging systems are controlled by a computer and can collect multiple logs with one pass of the probe.
Probes that measure different properties are lowered into the borehole to collect continuous or point data that is graphically displayed as a geophysical log. Multiple logs typically are collected to take advantage of their synergistic nature because much more can be learned by the analysis of a suite of logs as a group than by the analysis of the same logs individually. Geophysical logs provide unbiased continuous and in-situ data and generally sample a larger volume than drilling samples.
Borehole-geophysical logging can provide a wealth of information that is critical in gaining a better understanding of subsurface conditions needed for groundwater and environmental studies. It is an ideal testing method for delineating hydrogeologic units, defining groundwater quality and determining well construction and conditions.
