1、 Application field
During drilling, the drilling fluid has a large filtration, which is easy to cause the hydration expansion and collapse of shale, resulting in the instability of wellbore; Drilling fluid and filtrate invade the formation, causing clay expansion and well diameter reduction, which is easy to cause sticking. The filtrate reducer can reduce the filtration of drilling fluid through the mechanism of hydration film thickening, viscosity increasing and hole plugging, so as to ensure the rapid, high-quality and safe drilling.
2、 Product index
project | index |
appearance | viscous liquid |
viscosity，mPa•s | ≥100 |
density，mg/l | ≥1.01 |
pH | ≥6.5 |
flash point，℃ | ≥100 |
flash point，% | ≥35 |
Dissolution time，min | ≤30 |
Ionic charge | High anion |
molecular weight | rising-falling |
3、 Product features
1. Low dosage, good compatibility and high filtration failure rate; 2. Stable performance, strong temperature resistance, good pollution resistance and less affected by environmental factors; 3. Easy to use, easy to disperse and dissolve quickly. 4、 Packaging, transportation and storage 1. This product is packed in IBC barrels with a net weight of 1000kg. Different packaging specifications can also be adopted according to customer requirements. 2. This product avoids contact with copper, iron, aluminum and other metals, and has a shelf life of 6 months under sealed and cool conditions. 3. Pay attention to the packaging and sealing during the transportation of this product, both by automobile and sea. 4. This product shall be kept away from sun exposure and high temperature storage as far as possible.
