Drilling fluid with ultra-high temperature anti-salt filtration agent R-28（EPMC）
2024-06-14 10:00Drilling fluid with ultra-high temperature anti-salt filtration agent R-28（EPMC）
R-28, an ultra-high temperature anti-saturated salt filtration-reducing agent used in drilling fluid, is a filtration-reducing agent of AMPS copolymer, which can significantly improve the temperature resistance, salt resistance and filtrUltra-high temperature anti-salt filtration agentation-reducing performance of drilling fluid under ultra-high temperature.Suitable for all kinds of undersaturated salt water and fresh water drilling fluid under 200 ℃ high temperature fluid loss.Scope of application:
1, applies to 200 ℃ of fresh water, salt water (such as potassium chloride, sodium chloride, magnesium chloride, calcium chloride brine) drilling fluid loss;
2. Suitable for filtration loss reduction of drilling fluids with various densities, especially those with high and ultra-high densities;
3. The recommended dosage (dry agent) in drilling fluid is 0.5-2%.
Project | Index | |
Appearance | A white, grayish - white powder or particle | |
Water content，% | ≤10 | |
Screening rate (20 mesh screening), % | ≥50 | |
pH | 7~9 | |
Constant temperature 200 ℃ x 16 h | Apparent viscosity of 30% saline slurry，mPa·s | ≤40 |
High temperature and high pressure filtration loss of 30% saline slurry，ml | ≤40 | |
Reduction rate of high temperature and high pressure filtration loss of 30% saline slurry，% | ≥85 | |
The recommended dosage (dry agent) in drilling fluid is 0.5-2%.
