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SGS is pleased to offer down-hole
video camera services with
digital video and audio recording capabilities. The camera has both
down and
side viewing lenses with independent light sources. The probe and
attaching
hardware are fully sealed stainless steel and can be submerged in
ground water
and acid mine drainage. The camera orientation can be determined to
locate true
positions of features observed in the borehole. A custom centralizing
assembly
allows for viewing in holes of any inclination. SGS also has a full
video
editing capability to convert the video into CD or DVD viewing formats.
Geotechnical Applications:
- Lithology determination
- Discontinuity analysis
- Borehole sidewall
condition determination
- Character and location of
last circulation zones
- Evaluation of core loss
zones
- Rock quality and
permeability estimation
- Location of perched
aquifers
Construction Applications
- Identification and
location of buried man-made or natural structures encountered in
borehole
- Drilled shaft examination
- Well screen and casing
inspection
- Blast hole inspection
- Void examination in
concrete
Environmental Applications:
- Evaluation of buried
landfills
- Evaluation of abandoned
mine workings
- Condition of storage tanks
Specifications:
- Tape format: Digital 8mm
- Imaging:
full color
- Probe Diameter: 62mm
- Minimum borehole diameter: 2.9 in*
- Focusing distance: 0.5 in to
infinity
- Centralizing Range: 3 in to 8 in diameters
- Depth Capability: 100 ft
(-45º to +45º)
500 ft
(-45º to -90º)**
*
Best resolution in side
viewing mode is in boreholes/voids 4 in diameter and greater
**
Can be increased if probe need
not be oriented
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