Key Applications & Functions
1. Lost Circulation Control
Pore & Fracture Sealing:
Physically plugs micro-fractures (0.001–0.1 mm) and porous formations via flexible particle bridging.
Synergizes with cellulose fibers, calcium carbonate, and graphite for severe loss zones.
2. Wellbore Stabilization
Shale Inhibition:
Coats clay surfaces to prevent hydration/swelling in water-sensitive formations.
Reduces wellbore collapse risks in deviated/horizontal wells.
Mud Cake Enhancement:
Forms a thin, impermeable filter cake to minimize HTHP fluid loss and strengthen well walls.
3. Lubricity & Torque Reduction
Lowers drill string friction (critical in high-DLS/horizontal wells), reducing torque/drag by up to 20–30%.
4. Corrosion Mitigation
Sulfonate groups provide mild corrosion inhibition for downhole tools.
Technical Advantages
PropertyPerformance
Temperature Stability Up to 350°F (177°C)
Particle Size <100 microns (targets micro-fractures)
Compatibility WBM, OBM, high-salinity fluids
Environmental Low toxicity; compliant for onshore/offshore use
Physical & Handling Properties
Appearance: Dark brown to black, homogeneous powder
Packaging: 25 kg multi-ply bags (moisture-proof liner + kraft paper outer)
Storage: Cool, dry, ventilated; avoid humidity/direct sunlight to prevent clumping.
Operational Guidelines
Dosage:
Preventive (Shale Stabilization): 2–5 ppb (0.5–1.5% wt.).
Loss Control: 5–10 ppb (combined with LCMs like mica or walnut shells).
Mixing:
Pre-blend with base fluid to ensure dispersion; avoid lump formation.
Monitoring:
Track torque, ECD, and fluid loss to optimize concentrations.
