1. Product introduction
This product uses phenol, formaldehyde and humic acid as raw materials and is a salt resistant, high temperature resistant filtrate reducer modified lignite resin by polycondensation. It is mainly applicable to various fresh water and brine drilling fluid systems, which is conducive to maintaining the colloidal stability of drilling fluid and controlling the high temperature and high pressure filtration and rheology of drilling fluid.
2. Product performance index
| 项目 | 指标 | ||
| 抗盐型 | 普通型 | ||
| 干基质量分数，%≥ | 85.0 | ||
| PH值 | 8-11 | ||
| I型 | 表观粘度，mPa·s≤ | 32.0 | 22.0 |
| 160℃热滚16h高温高压滤失量，mL≤ | 45.0 | 35.0 | |
| II型 | 表观粘度，mPa·s≤ | 34.0 | 25.0 |
| 180℃ High temperature and high pressure filtration after hot rolling for 16h, mL≤ | 45.0 | 35.0 | |
| Ⅲ | Apparent viscosity, mPa·s≤ | 36.0 | 30.0 |
| 200℃ High temperature and high pressure filtration after hot rolling for 16h, mL≤ | 45.0 | 35.0 | |
3. Use guide
The temperature resistance of the product can reach 200 ℃, and the salt resistance can reach 15%. The recommended dosage is 3% – 6%.