Water well drilling rigs need
depth-specific bits for varying gravel layers. water well drilling rig
Shallow gravel (0-30m): use lightweight hammers. 100-150J impact works with small rigs.
Medium depth (30-100m): switch to heavy roller bits. 25mm+ body handles higher pressure.
Tips for water well drilling rig depth selection:
- Ultra-deep gravel (>100m) needs water-pressure sealed bits. Double-seal bearings.
- Increase bit strength with depth. Use S135 drill pipes below 150m.
- Match rig power to depth. Ensure enough impact and torque for bits.

This optimizes performance across all gravel depths effectively.