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BIO WS+
Fermentation-resistant modified starch
API-compliant standard modified starch for oil and drilling applications.

Technical overview
BIO WS+
BIO WS+ is a bio-treated, non-fermenting modified starch used as a fluid-loss control material in drilling mud for oil and gas drilling.
- Complies with API 13A standards
- Fluid-loss reducer for all drilling fluid types
- 12 months dry, cool storage
| Chemical analysis | Properties |
|---|---|
| Viscosity 600 rpm – 40g/L Salt Water (cP) | Max. 18 |
| Viscosity 600 rpm – Salt Water at Cts (cP) | Max. 20 |
| Filtrate Volume – 40g/L Salt Water (ml) | Max. 10 |
| Filtrate Volume – Salt Water at Cts (ml) | Max. 10 |
| p> 2000 µm | Max. 0 |
| Bulk Density | 500–550 g/L |
| Appearance | Yellowish powder |
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