Summary
OBC-GR is a styrene-butadiene latex prepared by emulsion polymerization using butadiene and styrene as main monomers. OBC-GR has good chemical stability and mechanical stability, and has good anti-gassing properties in the coagulation process of cement slurry.
Properties and characteristics
Good anti-gas migration performance.
It has good compatibility with various oil well cements and other admixtures.
It has good salt resistance and can be applied to brine cement slurry.
It has the function of auxiliary water loss reduction, which can significantly reduce the amount of water loss reducing agent.
The cement slurry has good stability and is not easy to break the emulsion, and the free liquid is close to zero.
The thickening transition time of the cement slurry is short and close to the right angle thickening.
Recommend dosage: 3% to 10% (BWOS)
Technical data
|
Item |
Index |
| Appearance | Milky liquid |
| Density (20℃), g/cm3 | 0.95-1.05 |
| Odor | Slight irritation |
| Initial consistency, Bc/80℃. 46.5mPa.45min | ≤30 |
| Thickening curve mutation value, Bc | ≤10 |
| 40Bc~100Bc, min | ≤40 |
| API dehydration(50℃, 6.9Mpa,30min), ml | ≤100 |
| Compressive strength, mPa/102℃.21mPa.24h | ≥14 |
| Slurry composition: 100% SD”G”, w/c 0.36, 5.0% OBC-GR, 4.0% Fluid loss agent, 0.3% defoamer, cement paste density 1.90g/cm3 ± 0.01g / cm3. Water quality: distilled water. | |
Package
200Liter/plastic pail. Or based on custom’s request.
Storage
It should be stored in cool, dry and ventilated areas and avoid being exposed to the sun and rain.
