1. Product introduction
This product is a new type of filtrate reducer with strong high temperature and salt resistance formed by polycondensation of phenol, formaldehyde and sulfonate. It is an excellent filtrate reducer for saturated brine drilling fluid, with less dosage than SMP – Ⅰ and SMP – Ⅱ.
2. Product performance index
| Item | Index |
| appearance | Free flowing powder |
| Mass fraction on dry basis, %≥ | 87.0 |
| Water insoluble, %≤ | 8.0 |
| Cloud point salinity (calculated by CL – ≥ | 100 |
| Apparent viscosity, mPa·s≤ | 40.0 |
| High temperature and high pressure filtration, mL≤ | 28.0 |
| Foaming rate, %≤ | 10.0 |
3. Use guide
The service temperature of the product is 140 ℃ – 180 ℃; Suitable for drilling fluid system with salt content between 15-30%; The recommended dosage is generally 1.5% – 4%, which can be adjusted according to the specific situation.