1. Product introduction
This product is a filtrate reducer sulfomethyl phenolic resin for drilling fluid prepared by polycondensation with phenol, formaldehyde and sulfonate as raw materials. It has strong temperature and salt resistance, salt resistance up to saturation, strong thermal stability, high temperature resistance of 180-200 ℃, and can be used for fresh water, brine, saturated brine and seawater high-density drilling fluid for deep and ultra deep wells.
2. Product performance index
| Item | Index | |
| SMP-Ⅱ water aqua | SMP-Ⅱ powder | |
| appearance | Viscous liquid | Free flowing powder |
| Mass fraction on dry basis, %≥ | 42.0 | 90.0 |
| Water insoluble, ≤ | – | 8.0 |
| Dynamic viscosity, mPa·s | 30-100 | – |
| Cloud point salinity (calculated by CL – ≥ | 160 | 160 |
| Apparent viscosity, mPa·s≤ | 50.0 | 50.0 |
| High temperature and high pressure filtration, mL≤ | 35 | 35 |
| Foaming rate, %≤ | 10.0 | 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 3% – 6%, which can be adjusted according to the specific situation. (it can be adjusted to meet the standards of each oilfield according to the requirements of customers)