Drilling means make a hole under the ground, and the equipment necessary for the work depends on its dimension and its objectives. We use various drilling techniques, up to 200 meters deep:
- auger drilling from 80 mm to 400 mm in diameter
- casing in advance, downhole hammer with diameter 150 mm to 311 mm
- Rotary water drilling from 90 to 630 mm in diameter
- horizontal drilling (irrigation, electric cable)
- geothermal drilling for vertical collector installation
- gravitational acidification or under pressure
- cleaning and brushing of wells, disinfection of wells and boreholes
