Aiming at the “high plasticity and strong
swelling-shrinkage” characteristics of expansive soils, water well drilling rig selection should follow the “three highs and one strength” principle:
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High torque output:
Hydraulic system torque ≥ 3000N・m to cope with the viscous resistance of expansive soils.
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High-speed adjustment:
Bit speed continuously adjustable from 0-300r/min to adapt to formations with different water contents.
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High-protection design:
Electrical system with IP65 protection level to prevent clay particles from intruding.
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Strong slag discharge capacity:
Mud pump displacement ≥ 180L/min to ensure timely discharge of cuttings.water well drilling rig
Bangxin drilling rig