565 meters through dense forest, 40 meters beneath the surface: In Ehrenforst, the project team successfully completed our longest rock drill to date using the Double Rod System—marking a new milestone for our operations.
Technical Specifications
- Drill Length: 565 m
- Rig: AT-Boretec MT60
- High-Pressure Mud Pump: 1,300 l/min
- Pilot Hole: Double Rod System, 7 ½” TCI Roller Cone Bit
- Guidance / Steering System: Falcon F5 / Underground Magnetics
- Crossing Obstacle: Dense forest terrain
Bore Profile:
- Entry Angle: 14°
- Exit Angle: 15°
- Vertical Bend Radius: 500 m
- True Vertical Depth (TVD): 40 m
Geological Conditions & Pipe Specifications:
- Geology: Limestone, marl, claystone
- Product Conduits: 2 x HDPE 315 mm, SDR 11; 1 x HDPE 280 mm, SDR 11
- Drilling Fluid: Bentonite-based
Final Pullback Force:
- 315 mm – 155 kN
- 315 mm – 170 kN
- 280 mm – 110 kN
