1. Product introduction
This product takes phenol, formaldehyde, sulfonate and polymer as raw materials and polymerizes for many times to form a temperature and salt resistant fluid loss reducer coupled phenolic resin (zr-13). It is a patented product of our company. It has strong temperature and salt resistance, has the ability to resist the pollution of high valence metal ions, and also enhances the function of inhibiting and preventing collapse. It can achieve stable fluid loss reduction in saturated brine drilling fluid. It is suitable for deep wells Ultra deep well high density drilling fluid system with good compatibility.
2. Product performance index
| Item | Index | |
| Water agent | Dry powder | |
| Mass fraction on dry basis, %≥ | 42.0 | 90.0 |
| Water insoluble, %≤ | — | 5.0 |
| Dynamic viscosity, mPa•s | 30～120 | — |
| Cloud point salinity (in Cl -), (g/L)≥ | 170 | 170 |
| Apparent viscosity, mPa·s≤ | 50.0 | 50.0 |
| High temperature and high pressure filtration, mL≤ | 28.0 | 28.0 |
3. Use guide
The service temperature of the product is 160 ℃ – 200 ℃; Suitable for drilling fluid system with salt content of 15% to saturated brine; The recommended dosage is generally 3% – 6%, which can be adjusted according to the specific situation.