- G307A consists of water-dissolved macromolecules, crystal lattice expansion and other reinforcing additives.
- Normal dosage: 2.0%～5% (BWOC).
- Enhance the early strength of the cement paste efficiently.
- Has certain slight expanding effect, which can compensate the cement slurry pressure reduction caused by the volume reduction in cement hydrate. So it can be used to as gas locked agent, enhance the strength of cement and cementation.
- Applicable temperature:30℃～120℃ (BHCT).
- Combined with retarder, can be used in shallow and middle-deep wells.
- Preferred to mix without water.
ADDITIVES CATEGORIES
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Early Strength and Anti-Channeling Agent for Oil Well Cement
Product Description :
G307A oil well cement early strength anti channeling additive belongs to water soluble high molecular polymer, and can decrease the penetration rate of slurry film by gathering molecular chains in the cement slurry. In addition, various functional groups are introduced to the polymer, which can enhance the dissolution rate in the cement slurry at low temperature and develop the property of anti high temperature and salt.
Performance Characteristics :
Technical indicators :
| Appearance | Flow-ability particles or powder |
| Water content, % | ≤ 8.0 |
| Fineness (0.315mm screen residue), % | ≤ 15.0 |
| Initial consistency , Bc / 80℃, 46.5MPa, 45min | ≤ 30.0 |
| Mutation value of thickening curve, Bc | ≤ 10.0 |
| Transition time, min | ≤ 40.0 |
| Free liquid, % | ≤ 1.4 |
| Fluid loss, ml / 80℃, 6.9MPa, 30min | ≤ 150.0 |
| Compression strength, MPa / 102℃, 0.1MPa, 24h | ≥ 14.0 |
The ingredient of the cement slurry in the table is: G class cement, W/C: 0.44, G307A: 3.0% (BWOC), Water quality: distilled water.
Packaging, storage and transportation ：
- Be sacked with three three-layer plastics bag, 25kgs per bag.
- Be kept away from moisture, stored in cool and dry situation.
- Storage life time is two years.
