In geological and mineral exploration, diamond/core drilling is widely used due to its accuracy in obtaining subsurface samples. During drilling, clean water or bentonite-based drilling fluid is typically applied to cool the drill bit and carry cuttings to the surface.
However, with increasingly strict environmental regulations, the traditional method of mud pit settling is no longer sufficient. It leads to land contamination, inefficient solids removal, and significant fluid loss.
To address these challenges, GN has developed a closed-loop geological drilling mud treatment system, designed to minimize environmental impact while improving drilling efficiency.
Closed-Loop Mud Treatment System – Overview
GN’s system is engineered specifically for geological coring drilling mud, enabling efficient solid-liquid separation and reuse of drilling fluid.
Main Components
The system typically includes:
- Small shale shaker
- High-speed decanter centrifuge
- Mud supply pump
- Jet mixing hopper
- Mud tank
👉 This integrated design allows:
- Continuous removal of drilled solids
- Recycling of drilling fluid
- On-site preparation and mixing of new mud
System Models
GN offers two standard configurations:
- Standard Type: GNSR-130L
- Modular Type: GNSR-130M
Both are designed for mobility, compact footprint, and rapid deployment in exploration sites.
Core Equipment – Mini Decanter Centrifuge
At the heart of the system is the 220mm bowl mini decanter centrifuge, optimized for fine solids separation in low-flow drilling operations.
Available Models
| Model | GNLW223D | GNLW223D-FHD | GNLW224G-VFD |
|---|---|---|---|
| Type | Fixed Speed | Hydraulic Drive | VFD Drive |
| Max Capacity | 130 L/min | 130 L/min | 130 L/min |
| Typical Capacity | 100 L/min | 100 L/min | 100 L/min |
| Bowl Diameter | 220 mm | 220 mm | 220 mm |
| Bowl Length | 670 mm | 670 mm | 924 mm |
| Max Speed | 4500 RPM | 4000 RPM | 5000 RPM |
| Typical Speed | 3800 RPM | 0–3800 RPM | 0–4500 RPM |
| Max G-Force | 2492 | 2000 | 3000 |
| Typical G-Force | 1777 | 1777 | 2500 |
| Main Motor | 11 kW | Hydraulic Drive | 11 kW |
| Back Motor | N/A | N/A | 5.5 kW |
Key Advantages of GN Solution
1. Environmental Compliance
The closed-loop system eliminates the need for open mud pits, reducing:
- Soil contamination
- Waste discharge
- Environmental footprint
2. Efficient Solid-Liquid Separation
With high-speed centrifuges generating up to 3000 G-force, the system can:
- Remove fine solids effectively
- Improve drilling fluid quality
- Extend fluid reuse cycles
3. Flexible Drive Options
GN provides three drive configurations to suit different project needs:
- Fixed Speed (GNLW223D): Simple and cost-effective
- Hydraulic Drive (GNLW223D-FHD): Ideal for harsh environments and variable loads
- VFD Drive (GNLW224G-VFD): Precise control and energy efficiency
4. Compact & Modular Design
- Small footprint for remote exploration sites
- Skid-mounted or modular options
- Easy transportation and quick installation
5. Integrated Mud Mixing Capability
The system includes:
- Mud mixing pump
- Jet hopper
👉 Allowing operators to:
- Prepare new drilling fluid
- Adjust mud properties in real time
Application Scenarios
This system is ideal for:
- Mineral exploration drilling
- Geological coring projects
- Remote or environmentally sensitive areas
- Projects requiring fluid recycling and minimal waste discharge
Conclusion
With stricter environmental regulations and increasing demand for efficient drilling operations, traditional mud treatment methods are no longer viable.
GN Solids Control provides a compact, efficient, and environmentally responsible solution through its geological drilling mud treatment system. By integrating high-speed centrifuges and modular design, GN helps clients achieve:
- Reduced environmental impact
- Improved drilling efficiency
- Lower operational costs