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F-Drill HT
High-temperature resistant modified starch
High-temperature modified starch with thermal stability of approximately >260 °F.
Technical overview
F-Drill HT
F-Drill HT is a high-temperature resistant modified starch used as a fluid-loss control additive in drilling fluids where biocides are not permitted but fermentation resistance and high-temperature stability are required.
- Complies with API 13A standards
- >260 °F thermal stability
- For formulations that cannot use biocides
| Chemical analysis | Properties |
|---|---|
| Viscosity 600 rpm – 40g/L Salt Water (cP) (16 h @260°F) | Max. 18 |
| Viscosity 600 rpm – Salt Water at Cts (cP) (16 h @260°F) | Max. 20 |
| Filtrate Volume – 40g/L Salt Water (ml) (16 h @260°F) | Max. 10 |
| Filtrate Volume – Salt Water at Cts (ml) (16 h @260°F) | Max. 10 |
| p> 2000 µm | Max. 0 |
| Bulk Density | 600–700 g/L |
| Appearance | Granular yellowish powder |
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