Borehole CCTV Camera
Borehole Camera is for visual inspection of boreholes and wells, it allows you to see the underground. A borehole is a hole drilled as part of some an environmental or geotechnical investigation using a Borehole Camera.
These Cameras can be used inside all kinds of holes such as those created to collect soil samples, rock cores or water samples. They are one of the most valuable tools used in mining investigations, as they allow engineers to view and make videos of boreholes, mine shafts, sink holes and other accessible subsurface avenues.
Most Borehole cameras are portable and operate with rechargeable batteries. Images are digitally recorded, and some have sound recording built in. Options including readout displays on the viewer and cable winding mechanisms are also available.
Potential Use of Borehole Camera:
Lithologic or Stratigraphic Logging
Although the Borehole Camera is less than perfect for thorough lithologic logging, it can allow a reasonable level of lithology determination. Sandstones, shales, and coals can usually be differentiated. The parting of shales and siltstones are at times possible Conglomeratic zones, nodules, coal spars, and concretions can be easily viewed within units with different colour. Lithologic determinations work best with a colour camera setup.
The frequency of fractures inside lithologic units with changes in depth, topographic location and the location of bores concerning geologic structure, mines, and other salient features are all of interest. The location, orientation, rough width (aperture size), and condition (open, plugged, or stained) of fractures can be viewed and recorded. With the specific equipment, fracture strike and dip can be assessed. Using an integral ruled gauge, the fracture aperture can usually be determined. The degree to which fractures are filled is essential to ground water contributions, the type of fill material or precipitate could show the water quality produced by that fracture, or if bacterial plugging has occurred.
Bore and Casing Integrity
The camera can be used to detect the general condition of the bore in terms of off-sets, zones of sloughing, swift build-ups, remains accumulation at the bottom or blockages. The cracks or holes in the casing, casing deterioration, leaking joints, and casing buckling can be documented. If the pump is left in place, the condition of the pump, and wiring can be determined as well.
Ground Water Information
A lot number of multitude data regarding the ground water can be discovered using the Borehole Camera.