General description
TRCE-270S consists of special fibres and fluid-loss-control additives. Hydrophilic treatment of the fibre surfaces prevents agglomeration, promotes dispersion and allows uniform networks to form. It can improve the load-bearing capacity of permeable and slightly fractured formations to help prevent lost circulation, and can increase the strength of set cement. It has a slight thickening effect on cement slurries without adverse effects. TRCE-270S can be dry blended with cement or added directly to cement slurries.
Physical and chemical properties
| Property | Specification |
|---|---|
| Appearance | Grey fibres and powder |
| Density (20 ± 2°C), g/cm³ | 2.10 ± 0.20 |
Technical specifications
| Property / test condition | Specification | |
|---|---|---|
| Fluid loss (52°C), mL | Plugging Stage (0.7 MPa, 10 min) | 50 max. |
| Pressure stage (3.5 MPa, 20 min) | 50 max. | |
| Thickening time (52°C, 35.6 MPa), min | 90 minimum | |
| Initial consistency, Bc | 25 max. | |
| Compressive strength (52°C, ATM, 24 h), MPa | 14.0 minimum | |
Recommended cement slurry composition: Class G cement (HSR) 800 g; TRCE-270S 16 g (dry blended); fluid-loss reducer 12 g (dry blended); friction reducer 2.4 g (dry blended); distilled water 352 g; defoamer 0.4 g. | ||
Application
Application temperature range: 20–200°C (BHCT).
Dosage: 15–30 kg/m³ of cement.
Packaging
Packed in 25 kg moisture-proof bags or as requested by the customer.
