- Volcanic Geothermal System developments would typically utilise larger module drill rigs to get the well sizes for increased reservoir flow.
- For remote locations with accessibility challenges, the type of drill rig would be constrained to consider how modular sections could be transported and assembled on the drill pad.
- Larger diameter conductor and casing sizes would require larger capacity drill rigs able to handle heavier casing strings and provide the drilling power to drill larger hole and deal with potential drilling challenges (i.e., hole cleaning, stuck pipe, lost circulation).
- Typical rig details:
- Up to ~40-80# truckloads to move rig and consumables
- Drilling time to 1500m ~25 days (24/7)
- Drill pad ~100m x 70m, storage area ~200m x 200m
- Access road ~15m wide (including drainage)
- Mast height ~45m
- Waste sump pond volume ~1000m3
- Water requirements ~3500m3/day
- Cranage and materials handling equipment would be required on site to assemble the rig components and handle material transfer requirements. Power generation, compressors, and pumps would be required on site for a range of operations.
- Tangibles including conductors, casing, drill pipes, drilling tools, drill bits, and consumables including water, diesel, mud and cement ingredients and additives
Specialised services would be needed for activities including directional drilling, fishing, and testing/logging
