Description
High-molecular heterogeneous aromatic hydroxy-carboxylate; black granules and powder. Modified polymer compound with large inner specific surface area and strong adsorption & hydration capacity. Adsorbs onto clay-particle surfaces to build thin, tough filter cake on borehole wall, reduce fluid loss and protect shale from mud filtrate erosion. Colloidal humate particles and asphalt fractions penetrate shale fractures to inhibit formation mud-making and stabilize wellbore. For water-based drilling-fluid systems; functions as thinner and fluid-loss reducer, thermal resistance >180 °C.
Appearance
Black / brownish-black free-flowing powder.
Main Advantages
- Drilling-fluid additive inhibiting shale hydration-dispersion and formation mud-making while stabilizing borehole.
- Provides thinning and filtration-control.
- Suitable for all water-based mud systems, especially fresh-water mud.
Fluid Systems Mentioned
Specifications
| Parameter | Value / Limit | Unit | Test Conditions |
|---|---|---|---|
| Appearance | Black/brownish-black free-flowing powder | — | — |
| Fineness (pass 0.90 mm sieve) | 100% pass | % | — |
| Water-insoluble fraction | ≤18.0 | % | — |
| Moisture | ≤15.0 | % | — |
| pH value | 9.0–11.0 | — | — |
| Humic-acid content | ≥45.0 | % | — |
| Potassium-ion content | ≥5.0 | % | — |
| Core linear-swelling reduction rate | ≥60.0 | % | — |
| API fluid-loss reduction rate | ≥45.0 | % | — |
| Apparent-viscosity reduction rate | ≥50.0 | % | — |
Application
Recommended dosage: 1%–3%.
Dosage Guidance
1%–3%.
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