Resinated lignite
Resinated Lignite is a modified lignite-based drilling fluid additive specially treated with resins to improve its thermal stability, filtration control, and dispersibility in water-based and oil-based mud systems.
It is designed for high-temperature, high-pressure (HTHP) drilling environments, where conventional lignite products cannot perform effectively.It is commonly used as a fluid loss reducer, thinner, and rheology stabilizer in deep well drilling.
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Performance Properties
- High temperature tolerance (350–400°F)
- Lowers API and HTHP fluid loss
- Stable performance in hard water and salt-contaminated mud
- Compatible with most water-based mud formulations
Specification
| Parameters | Test Results |
|---|---|
| Appearance | Dark brown to black free-flowing powder |
| Moisture Content | ≤ 10% |
| pH (1% solution) | 8.0 min. |
| Bulk Density | 0.45 – 0.65 g/cm³ |
| Ash Content | ≤ 18% |
| Particle Size | 90% passing through 60 mesh |
| Thermal Stability | Up to 200–220°C |