Description
Anionic graft copolymer based on humic-acid backbone. Combines advantages of polymer and humic-acid. Contains carbonyl, carboxyl, sulfonate hydration groups. Excellent high-temperature and salt resistance. Applicable for various water-based mud, especially high-temperature deep-well drilling.
Appearance
Black / brownish-black free-flowing powder.
Fluid Systems Mentioned
Specifications
| Parameter | Value / Limit | Unit | Test Conditions |
|---|---|---|---|
| Appearance | Black/brownish-black free-flowing powder | — | — |
| Moisture | ≤15.0 | % | — |
| Purity | ≥88.0 | % | — |
| pH | 8.0–10.0 | — | 1% aqueous solution |
| Core linear-swelling reduction rate | ≥60.0 | % | — |
| Viscosity-reduction rate | ≥60.0 | % | 25 °C ± 2 °C — Fresh-water mud |
| Viscosity-reduction rate after hot-rolling | ≥50.0 | % | 180 °C — Fresh-water mud |
| API fluid-loss after hot-rolling | ≤8.0 | mL | 180 °C, 3% dosage — Fresh-water mud |
| HT-HP fluid-loss | ≤25.0 | mL | 3% dosage, 150 °C/3.45 MPa — Fresh-water mud |
| API fluid-loss after hot-rolling | ≤10.0 | mL | 180 °C, 5% dosage — Salt-water mud |
| HT-HP fluid-loss after hot-rolling | ≤32.0 | mL | 180 °C, 5% dosage, 150 °C/3.45 MPa — Salt-water mud |
| Apparent viscosity | ≤30.0 | mPa·s | 5% dosage — Salt-water mud |
Application
Reduces mud viscosity & gel strength with minor change of fluid loss. Recommended dosage: 3%–5%.
Dosage Guidance
3%–5%.
Packaging & Storage
Alkaline; per the manufacturer's documentation, non-toxic. Inner plastic bag + outer moisture-proof kraft bag. Weight not specified in available documentation. Store in cool, dry, ventilated warehouse. For safety determinations, consult the applicable SDS.
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