Large Diameter Hole Drilling
Large diameter hole drilling is used for applications that require greater borehole size, stability, and volume than conventional methods can provide. This technique is essential in programs such as bulk sampling, dewatering, ventilation, and pre-collar drilling, where larger holes allow for increased material flow or installation capacity.
The process is typically performed using rotary or flooded reverse drilling systems, depending on formation and project requirements. Specialized bits, heavy-duty rigs, and high-capacity circulation systems are used to maintain hole integrity and ensure consistent performance through a range of geological conditions.
This method is commonly used for:
• Bulk sampling
• Ventilation, dewatering, and infrastructure holes
• Pre-collar drilling for deep exploration programs
• Geotechnical and environmental investigation holes
Foraco’s large diameter drilling operations combine robust equipment and precise control systems with experienced crews capable of managing complex drilling conditions. The result is efficient, accurate, and safe delivery of large-scale boreholes that meet client specifications and project objectives.