Description
Produced by alkalization and etherification of starch to introduce hydrated carboxymethyl groups. Excellent saturated-salt-water resistance and calcium-resistance. Mitigates filtrate-rise caused by cement and calcium-ion contamination. Low-cost raw material, ideal for cost-sensitive drilling projects. Better performance combined with biocide.
Appearance
White / pale-yellow free-flowing powder / granules.
Main Advantages
- Good fluid-loss control up to saturated-salt condition.
- Low price for cost-efficient drilling.
Fluid Systems Mentioned
Specifications
| Parameter | Value / Limit | Unit | Test Conditions |
|---|---|---|---|
| Appearance | White/pale-yellow free-flowing powder/granules | — | — |
| Moisture | ≤10.0 | % | — |
| Viscosity reading (600 rpm) | ≤18.0 | — | 4% salt-water suspension |
| Viscosity reading (600 rpm) | ≤20.0 | — | Saturated-salt-water suspension |
| Fluid loss of 4% salt-water suspension | ≤10.0 | mL | — |
| Fluid loss of saturated-salt-water suspension | ≤10.0 | mL | — |
Application
Directly applicable in diverse water-based mud systems; compatible with multiple mud additives. Recommended dosage: 1%–3%. Recommended mud pH 9–12. For fresh-water / low-salt mud below 60 °C, add biocide to prevent mud fermentation.
Dosage Guidance
1%–3%. Recommended mud pH: 9–12.
Packaging & Storage
3-in-1 composite bags with PE liner, net 25 kg/bag. Cool dry ventilated warehouse.
Available Documentation
Catalog technical data sheet: available. Request the applicable SDS and CoA; availability subject to confirmation.
Request technical data sheet, SDS and documentation applicable to the product and batch