Modified Tannin Viscosity Reducer
Catalog NO.: AIMRSE-CHM-ADD-137 Manufacturer PN: CHM-VIS-TAN
• Temperature resistance up to 200°C; low dosage but significant effect; resistant to salt, calcium, and gypsum contamination, not affected by pH; free of chromium heavy metals; extremely cost-effective product.
Reduces viscosity and shear stress, suitable for both dispersed and non-dispersed water-based drilling fluid systems without compromising wellbore cleaning capability. Applicable to freshwater, seawater, and monovalent/divalent brine systems. Strong anti-fouling capability handles salt intrusion, cement contamination, and gypsum contamination, enabling higher solid content tolerance.
This environmentally friendly, high-efficiency diluent for water-based drilling systems operates effectively at bottomhole temperatures up to 200°C. Its primary component is modified tannin, delivering 4-8 times the performance of iron-chromium lignosulfonate diluents. This product dissolves at pH 8.5, eliminating the need for caustic soda activation. It delivers potent anti-flocculation and shear-thinning effects with minimal dosage. Widely used in high-salinity, high-calcium, and gypsum formations without pH restrictions, it is recognized as the most cost-effective viscosity reducer for water-based drilling fluid systems.
| Type | Diluents & Dispersants |
| Recommended Dosage | Recommended dosage is 3-12 kg/m³, the specific dosage needs to be determined according to on-site drilling conditions |
| Appearance | Brownish-red powder |
| Specific Gravity | 0.47 |
| pH | 6 |
| Packaging | 25 kg/bag |