Dry vs. Wet DTH Hammers: Different Uses for Water Well Drilling Rigs

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The water well drilling rig uses dry or wet DTH hammers, differing in cuttings removal.

 

  1. Dry hammers: Use high-pressure air, need little water. Save 95% water in northwest deserts, 200L/well.
  2. Best for arid areas: Drilled 8 wells in desert with no surface water. 100% water quality, but needs dust control.
  3. Wet hammers: Use water + air. Cools bits, extends life 20%. Better in wet regions, needs 1 ton water/50m.

 

A southern project saw 15% faster drilling in granite with wet hammers. The water well drilling rig fits both to conditions.