Starch reagent SNPH-PFK of the HB grade, BB grade
Drilling fluids filter reducing agent based on modified starch obtained during the processing of organic raw materials.
Advantages
- Maintains stability in highly mineralized solutions up to saturation.
- Has a high rate of solubility in fresh and mineralized water.
- A biodegradable and environmentally friendly product.
Purpose
Designed to regulate the filtration properties of drilling fluids of various mineralization.
The recommended concentration is from 1.5 to 5 kg/m³.
| Indicator name | Indicator value | ||
|---|---|---|---|
| grade HB | grade ВВ | ||
| Product appearance | The appearance is a loose powder from white to beige in color. Small inclusions of black and brown are allowed. | ||
| Mass fraction of moisture, %, not more than | 10 | 15 | |
| The pH value is 1% aqueous solution of the reagent, units | 5-9 | – | |
| Nominal viscosity, seconds | in fresh water | – | 30-40 |
| in mineralized water | – | 35-45 | |
| Filtration in 30 min, cm3, no more | in fresh water | – | 10 |
| in mineralized water | – | 6 | |