Special Structural Design of Water Well Drills for Permafrost Zones

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In permafrost regions like Antarctic research stations and Siberian oilfields, water well drilling rig must overcome dual challenges of “extreme cold + stable frozen soil layers”:

 

  1. Self-heating drill pipe technology:
    Built-in resistance wire heating maintains pipe surface temperature at 5-10°C to prevent ice chip adhesion.
  2. Double-layer casing system:
    Outer steel casing + inner freezing pipe stabilizes the borehole wall via circulating hot brine.
  3. Intelligent temperature-controlled console:
    Keeps the operation panel at 22°C to ensure normal functioning of electronic components in low temperatures.

 

Russian diamond mines in Yakutia use such drills to achieve continuous 300-meter deep water well operations in -50°C environments.water well drilling rig