General description
TRXR-50S adheres to cement hydration products to limit contact with water and chelates Ca2+ to prevent the early formation of crystal nuclei. This delays thickening.
Performance characteristics
- Contains sulfonate, organic acid and several other compounds.
- Reduces cement slurry consistency and improves rheology.
- Extends thickening time and increases pumping speed. In medium-depth or deep wells, the cement slurry can have a nearly right-angle thickening profile.
- Usually dry blended.
Physical and chemical properties
| Property | Specification |
|---|---|
| Appearance | Brown powder |
| Density (20 ± 2°C), g/cm³ | 1.40 ± 0.20 |
Technical specifications
| Property | Specification |
|---|---|
| Moisture, % | 10.0 max. |
| Fineness (0.315 mm mesh), % | 10.0 max. |
| Initial consistency, Bc | 30 max. |
| Thickening time adjustment (120°C, 73.9 MPa, 61 min) | Adjustable |
| Thickening curve | Normal |
| Free fluid, % | 1.4 max. |
| Compressive strength (144°C, 21 MPa, 24 h), MPa | 14 minimum |
Recommended cement slurry composition: Class G cement 594 g; silica sand 208 g (160–200 mesh); distilled water 333 mL; TRXR-50S 0.7–2.0% (BWOC). | |
Application
Application temperature range: 110–170°C (BHCT).
Dosage: 0.7–2.0% (BWOC).
Packaging
Packed in 25 kg moisture-proof bags or as requested by the customer.
