Limestone Drilling: 113 mm Spiral PDC Bit on a 150-Class Rig

Field case study

Limestone Drilling: 113 mm Spiral PDC Bit on a 150-Class Rig

GuangxiLimestonePDC drill bitWater well

Project conditions

  • Location: Guangxi, China
  • Formation: Limestone
  • Drilling rig: 150-class drilling machine
  • Drilling tool: 113 mm FS spiral PDC drill bit

Observed result

The recorded penetration was 3 meters in 45 minutes. The field feedback also reported long service life under normal use.

What this case shows

This result is a field reference for comparable limestone conditions. Final selection still depends on formation integrity, rig parameters, circulation and target hole specification.