Comparing 4 Rock Hardness Methods for Water Well Drilling Rig

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Water well drilling rigs use 4 methods to judge rock hardness, each with specific uses.water well drilling rig

 

  1. DTH rig dynamic monitoring suits open-air work. It reflects hardness changes in real time, responds fast but has ±15% error, low precision.
  2. Water well drilling rig slag analysis fits underground aquifer exploration. It judges via cuttings in circulation fluid, low-cost but easily misled in clay by mud properties.
  3. Core rig sampling is most precise (error <5%), ideal for geology and mineral evaluation. But it’s complex, 3-5x costlier per meter and time-consuming.
  4. Mines prefer DTH monitoring; well projects use slag analysis plus occasional coring. Detailed surveys need core testing. Large projects combine methods for balance.