Bentonite powders HDD (ГНБ) - 1, HDD (ГНБ) - 2 are intended for the drilling fluids preparation during the construction of crossings and the laying of services using HDD method. They are produced from high-quality bentonite of Ziryanskoye deposit (Kurgan region, Russia).
HDD (ГНБ) - 1 grade is modified by soda ash and polymer; HDD (ГНБ) - 2 grade is modified only by soda ash.
Manufactured by: Kurgan Bentonite Limited.
Suspensions specification:
GRADE | UNIT | HDD-1 | HDD-2 |
---|---|---|---|
Concentration of bentonite powder in solution | % | 5 | 6 |
FANN Viscosimeter readings at 600 rpm, min | unit | 30 | 20 |
Fluid loss, max | sm3 | 15 | 15 |
Marsh funnel viscosity, min | s | 60 | 45 |
Suspension residue on the sieve % 0071, max | % | 2 | 3 |
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