Core Protective Measures for Core Drilling Rig in Severe Weather

11 April, 2026

Following the principles of equipment protection, personnel risk prevention and operation fault avoidance, the streamlined measures for rainy, high-temperature and frigid weather are as follows, with general guidelines attached.

1. Rainy Weather (Core: Waterproof, Anti-slip, Anti-collapse)

Site: 3°~5° drainage slope, annular ditch; steel plates/anti-slip mats; safety belts for high-altitude work.
Equipment: Waterproof covers for electrical parts, rain covers for power/hydraulic systems; drill tools in rain shelter.
Drilling: Hole protector; stop drilling/seal hole in heavy rain; high-viscosity mud & real-time water return monitoring in light rain.
Post-op: Move rig to dry area, test electrical insulation, drain small amount of hydraulic oil; derust & oil drill tools.

2. High-Temperature Weather (Core: Cooling, Anti-overload, Heatstroke Prevention)

Equipment: Clean cooler filters, add high-temp coolant; sunshade/radiators for components; replace with No.46 high-temp hydraulic oil.
Drilling: Reduce speed/feeding force, increase water injection; spare drill tools in shade, regular bit replacement.
Personnel: Avoid 11:00~15:00; sunshades & heatstroke supplies, rest every 1~2h.
Safety: Sealed cool oil storage, on-site fire extinguishers; immediate shutdown for overheating/heatstroke.

3. Frigid Weather (Core: Anti-freezing, Anti-solidification, Anti-brittle fracture)

Pre-op

Preheat engine/hydraulic system to oil temp ≥10℃, check battery ≥12.5V & insulate;
Replace with frigid diesel, No.32 low-freezing hydraulic oil, frigid grease; antifreeze (≤-30℃) for water tank;
Clear ice/snow, lay gravel, reinforce rig base, insulate mud pit.

During-op

Insulate core components; keep idling when paused, install insulated hole protector;
No-load run 5~10mins before operation, no low-temp full load; real-time check for frost cracking/cracks;
Full cold-proof PPE for personnel; shift ≤4h, rest for heating every 1h.

Post-op

Drain unantifrozen water/mud, insulate core components, move rig to warm area;
Clean/dry drill tools, coat with anti-rust/anti-freezing oil; store oil/consumables indoors.

General Operating Guidelines

Prohibit operation & evacuate in extreme weather (rainstorm, red warning for high temp/cold wave, blizzard, etc.).
No-load test after full protection; dedicated monitoring, immediate shutdown if abnormal.
Prepare protective/emergency supplies in advance; trained & assessed operators only.
Record weather, equipment status and measure implementation after operation.