1.Preparation before operation mini water drilling machine

Site survey and planning Check the geological conditions (rock hardness, depth of underground water layer) and obstacles (pipelines, rocks) in the construction area, give priority to flat and hard ground, and if necessary, use matting to reinforce soft ground. Obtain underground aquifer data from local water authorities and plan the location of boreholes to ensure compliance with environmental regulations. Equipment commissioning and testing Hydraulic system: check the hydraulic oil level and cleanliness, make sure the pressure value of the relief valve is in the factory setting range (non-professionals are strictly prohibited from adjusting it). Track stability: adjust the track tension to avoid derailment when travelling; the inclination angle is ≤15° when working on slopes, and steep slopes need to be fixed with anchor piles. Drilling tool assembly: make sure the threaded connection of the drill pipe is firm and the power head is aligned with the centre line of the drill pipe to prevent deviation from the hole.

2. Mini Water Drilling Rig Drilling process 

Hole opening and drilling control Test hole stage: use φ100mm drill bit to open the hole, speed control 80-120rpm, feed pressure ≤2MPa, record rock chip samples and analyse signs of aquifer. Drill pipe operation specification Adding and connecting drill pipe: stop drilling → clamping device locks the drill pipe → power head reverses 0.5 turns to unload the clasp → install new drill pipe → tighten it with positive rotation (torque value ≥2200N-m). Anti-threading measures: the power head is forbidden to reverse (except for adding/removing drill pipe) to avoid thread loosening which will cause the drilling tools to fall. Aquifer identification and hole formation When gravel, water flow or sudden rise of water level is observed in the mud, immediately take samples to test the quality of aquifer; After reaching the target depth, lower the PVC casing (φ200mm) and fill the ring gap with 3-6mm gravel (the height is 1m beyond the water filter pipe). 

3.The key points of safety operation Mini water well drilling machine

Personnel protection: operators wear tight-fitting work clothes and goggles; set up a warning zone within 5 metres radius of the borehole, and non-operators are prohibited from entering. Emergency response: Hydraulic oil leakage → stop the machine to relieve pressure → replace the seals; Hole wall collapse → inject bentonite slurry wall protection. Special working conditions: Rock fragmentation zone: reduce the feed rate, enable mud circulation wall protection; High hardness rock layer: switch the drill bit of submerged hammer, impact frequency ≥15Hz.

If you want to know more knowledge of water well drilling rig, welcome to visit our website: https://www.uniquedrilling-tech.com