1. Product introduction
This product can be used in most water-based drilling fluid systems, including fresh water, salt water and seawater drilling fluid. The temperature resistance reaches 150 ℃, which is not toxic and easy to degrade, and there is no need to add fungicide.
2. Product performance index
| Item | Index |
| appearance | White or yellowish powder or particles |
| Starch and derivatives | Pass the test |
| Moisture (mass fraction) % | 10.0 |
| Alcohol insoluble matter (mass fraction) % | 75.0 |
| Degree of substitution | 0.90 |
| PH (10g / L aqueous solution) | 6.0-8.5 |
3. Purpose and function
It can not only reduce filtration, but also inhibit the dispersion of active shale, help form dense mud cake and reduce the risk of sticking and sticking.
4. Use guide
It is mainly used for water-based drilling fluid, with a general dosage of 1.5% – 5%.