G307B mainly consists of water-dissolved macromolecules, complex with
inorganic early strength agent components and other Crystal expandable
materials.
Normal dosage: 2.0% ~ 3.5% (BWOC).
G307Bcan effectively enhance the early strength of cement stone.
It has the micro-expansion effect, and can effectively compensate for
pressure loss caused by the hydration volume reduction, thus effectively
preventing the gas-water leaking in the stratum.
Applicable temperature:30℃ ~ 90℃ (BHCT).
Combined with retarder, can be used in shallow-deep and middle-deep
wells.
Preferred to mix without water.
| Appearance | Floating powder or particles |
| Water content, % | ≤ 8.0 |
| Fineness (0.315 mm screen residue), % | ≤ 15.0 |
| Initial consistency, Bc / 50℃, 25.9MPa, 32min | ≤ 30.0 |
| Thickening liner | Normal |
| Time of 40Bc ~ 100Bc, min | ≤ 40.0 |
| Water loss, ml / 50℃, 6.9MPa, 30min | ≤ 150.0 |
| Compression strength, MPa / 71℃, 21MPa, 24h | ≥ 14.0 |
The ingredient of the cement slurry in the table is: G class cement, W/C: 0.44, Dosage of G307B: 2.5 % (BWOC), Water quality: distilled water.
Be sacked with three three-layer plastics bag, 25kgs per bag.
Be kept away from moisture and damaged condition of package during
transportation, stored in cool and dry place.
Storage life time is two years.
