Modified sodium bentonite for HDD
The product is a special mixture of sodium bentonite and polymers, for HDD operations. It provides a rapid increase of rheological parameters (viscosity, solids-removal capacity), maintainance of the wellbore wall stability, reduction of fluid loss into the soil.
The use of Modified sodium bentonite ensures:
• Viscosity growth;
• Effective solids-removal capacity;
• Loss control, well stability;
• Effective lubricity.
Advantages:
• Short tempering time;
• Increased lubricity to reduce traction pull;
• Low sand content.
Specification:
| Appearance: | Yellow, light brown powder |
| Density, g/cm3: | 2.6 |
Properties of 2.5 % (25 kg/m3) fresh-water water suspended mixture (hardness up to 80 mg/L):
• Funnel viscosity (sec/quart), at least 45 sec
• YP (yield point), at least 15
Packaging: 25 kg bags, 40 pcs. per pallet.
Recommended concentrations:
Clay / loam: 15-20 kg/m3
Sand clay / sand: 20-25 kg/m3
Coarse sand: 25-35 kg/m3
Pebble stone: 35-40 kg/m3
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