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DIAMOND DRILLING
Diamond drilling is used in any mining exploration environment to understand the geometry of mineralized bodies and determine their economic value, verify mineral grades, and assist in quantifying resources and reserves of a mining deposit or site.
We have a stock of diamond drilling machines that conduct drilling surveys on surface and underground terrains, reaching depths of up to 1200 meters per borehole and/or well, with inclinations ranging from 45° to 90° on the surface and 0° to 90° underground.
The collection of samples obtained through drilling comes in sizes PQ, HQ, NQ, and BQ, using the wireline system.
GEOTECHNICAL DRILLING
We utilize our diamond drilling equipment for the execution of these tasks. Our technicians and engineers have extensive experience in conducting medium to large-scale field tests. We perform the following geotechnical tasks.
Geotechnical Drilling:
- Large-diameter open-tube piezometers.
- Vibrating wire piezometers.
- Inclinometers.
Porosity, Permeability, and Compaction Testing and Trials:
- SPT
- LPT
- Lefranc permeability test.
- Leugeon permeability test.
- Selby tube sample.
- Shear test.
REVERSE AIR DRILLING
The design of the reverse circulation drill rods allows for sample recovery due to their double-wall construction. Air or water, which are the most commonly used flushing media, enter the column through the walls of the rod or the annular space between the outer casing and inner tube through a side connection, descending to the bottom of the borehole. The samples being extracted are directed rigidly towards the center of the drilling tool and then evacuated to the surface. From there, they are diverted through a discharge conduit to a rubber hose, which is connected to a particle deceleration unit (dust collector cyclone), and properly recovered for analysis.
We have SCHRAMM crawler-mounted equipment with a compressor capacity of 900 to 1150 CFM and 350 PSI, capable of drilling with a diameter of 5 ¾” at inclinations ranging from 90° to 45°, reaching depths of up to 400 meters.
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