150m Depth Well Drilling Rig With Hydraulic Control System For Customized Borehole

This rig is designed to solve problems related to well drilling, geological exploration, soil testing, and similar applications. It functions as a medium shallow hole core drilling machine with advantages including small size, light weight, powerful performance, and wide application range. Particularly suitable for construction projects such as hydroelectric power stations, highways, railroads, and harbors.

• Very powerful performance in various land conditions including soil, sand, and hard rock
• Three types of drill bits available (three-wing bit, alloy bit, and diamond bit) suitable for both soft and hard ground conditions, with diamond drill bits particularly effective for hard rocks
• Hydraulic control system significantly improves working efficiency and reduces labor requirements
• Mounted wheels or trailer configuration allows easy transportation by car or tractor
• Flexible power options including diesel engine or electric motor, available according to customer requirements

• For soft to medium hard, complete homogeneous rocks: Use natural surface mounted bits, composite chip bits, polycrystalline bits, and some sintered bits
• For hard to hard and dense rocks (grades 7-12): Use impregnated bits, sharp annular groove concentric circle or vertical and horizontal annular groove bits, or fine grain surface mounted diamond bits
• In broken, hard and soft inter-bedded, fissure developed or strongly abrasive rocks (such as coal measures): Use sharp tooth type broad-spectrum drill bit or reinforced electroplated impregnated drill bit with good wear resistance

Why is the water well drilling rig not suitable for use in rainy days?

After well completion, pumping tests are required to verify results. Under normal conditions, large draw down pumping should be conducted with stable water level duration not less than eight hours, while measuring well flow at dynamic water level. Well drilling projects must ensure proper drainage at construction sites, making rainy season operation inadvisable.

During excavation work, slope determination should follow soil layer physical and mechanical properties, typically 1:1.5 ratio, maintaining adequate distance from spoil slope toe to excavation upper opening. For large wells with shaft wall water inflow, water inlet holes and inverted filter layers must be arranged according to design specifications, preventing inlet blockage during construction. Filter material enclosure at aquifer must meet requirements with backfill having proper super elevation, and frozen soil in winter backfill not exceeding 15%.