The Impact of Rock Hardness on Coring Drill Selection

Introduction

Not all drilling projects face the same geological conditions. Rock hardness is a key factor that determines the type of coring drill required.

1. Matching Drill Types to Rock Hardness

• Soft to medium-hard formations: Geological core sampling rigs perform best.

2. Hydraulic Pressure Adjustment for Optimal Drilling

• Portable full-hydraulic core drilling rigs need lower pressure settings for soft formations.

3. Tool Wear and Cost Considerations

• Hard rock formations require high-durability drill bits.

Conclusion

Selecting a coring drill based on rock hardness ensures efficient drilling and minimal equipment wear.