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.
| 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.
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.
