Bentonite, a naturally occurring clay mineral composed primarily of montmorillonite, is a critical component in oil well drilling fluids due to its unique swelling and viscosity-enhancing properties. When properly processed, bentonite powder forms stable suspensions that lubricate drill bits, remove cuttings, and stabilize borehole walls.
High-quality sodium bentonite ore is first beneficiated to remove impurities like quartz and carbonates. Our MTW Series Trapezium Mill excels in primary size reduction with its wear-resistant shovel blades and optimized airflow design:
| Model | Input Size | Output Range | Capacity |
|---|---|---|---|
| MTW175G | ≤40mm | 30-325 mesh | 9.5-25t/h |
| MTW215G | ≤50mm | 30-325 mesh | 15-45t/h |
For API-grade bentonite requiring D97≤5μm particles, our SCM Ultrafine Mill achieves unparalleled precision with its vertical turbine classifier and energy-efficient design:
Drilling-grade bentonite must meet stringent API 13A specifications:
| Parameter | API Standard | Our Product |
|---|---|---|
| Yield Point | ≥3×plastic viscosity | 3.2-4.1× |
| Filtration Control | ≤15ml/30min | 8-12ml |
| 200-mesh Residue | ≤4% | 2.5-3.8% |
Sodium activation enhances bentonite’s swelling capacity through:
Final products are packed in:
Our complete bentonite processing solutions, featuring the SCM Ultrafine Mill for precision grinding and MTW Series Mills for high-volume production, ensure consistent quality meeting API/OCMA standards. The integrated systems achieve 98% production efficiency while maintaining environmental compliance.
