The solution to the low drilling efficiency of water well drilling RIGS in soft soil layers

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The characteristics of soft soil layers significantly reduce the drilling efficiency of water well drilling rig. Soft soil is highly viscous and fluid, so the drill bit easily gets clogged by clay, affecting crushing and slag discharge. Meanwhile, soft soil imposes great resistance on the drill pipe, increasing equipment energy consumption.

 

To improve drilling efficiency, here are key approaches:

  1. Optimize Drill Bit Design: Use bits with special cutting edges and slag discharge grooves to enhance crushing and slag removal. Misalnya:
    • Stepped bits break soil layers sequentially to reduce clay adhesion.
    • Double-helix bits effectively improve slag discharge efficiency.
  2. Refine Drilling Techniques: Adopt layered and intermittent drilling to prevent the bit from being stuck in soft soil for too long. This avoids prolonged resistance and energy waste.
  3. Apply Suitable Mud Protection: Using proper mud for wall protection stabilizes the borehole and lubricates the drill, reducing drilling resistance. Practical cases show these methods can boost drilling efficiency by 20%-30%.water well drilling rig