Description
Graft-copolymerized humic acid KJ-II is a high-temperature-resistant fluid-loss reducer for deep & ultra-deep wells. Developed for fast drilling and down-hole safety in deep formations. It reduces filtrate loss, modifies mud rheology, improves filter-cake quality and inhibits filtrate invasion into formations.
Characteristics declared for the product and stated conditions. Selection and performance subject to technical evaluation of the fluid system.
Appearance
Black free-flowing powder.
Main Advantages
- Excellent high-temperature stability, resistant to thermal degradation.
- Significant fluid-loss reduction under high-temperature conditions.
- Does not increase mud viscosity; maintains stable rheology.
- Easy mud maintenance.
- Effectively reduces drilling-fluid cost.
Specifications
| Parameter | Value / Limit | Unit | Test Conditions |
|---|---|---|---|
| Appearance | Black free-flowing powder | — | — |
| Moisture | ≤15.0 | % | — |
| Sieve residue (0.83 mm sieve) | ≤5.0 | % | — |
| pH value | 7.0–9.0 | — | — |
| API fluid loss | ≤10.0 | mL | — |
| HT-HP fluid loss | ≤32.0 | mL | 150 °C / 3.5 MPa |
| API fluid loss after aging | ≤10.0 | mL | 16 h @150 °C |
Technical Note: The test conditions (150 °C / 3.5 MPa; 16 h aging at 150 °C) describe the conditions under which the result was obtained, not a universal operating guarantee.
Application
Add dry powder via hopper. Recommended dosage: 1%–3%.
Dosage Guidance
1%–3%.
Indicative range from technical documentation. Final dosage requires testing and evaluation of the fluid system.
Packaging & Storage
3-in-1 composite bags with PE liner, net weight 25 kg per bag. Store in cool, dry and 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