It effectively reduces the thickening time at low temperature while maintaining good fluid loss reduction performance.
The transition time of thickening and setting performance is short.
Promote the early strength development of setting cement at low temperature.
Could be used in normal density, low density and high density cement slurry systems.
Used below temperature of 60℃（140℉，BHCT）.
Compatible well with other additives.
Recommended dosage range is 1.2-2.5% (BWOC).
CG910S product has the dual-effects of reducing fluid loss and accelerating coagulation at low temperature.
It effectively reduces the thickening time at low temperature while maintaining good fluid loss reduction performance.
The transition time of thickening and setting performance is short.
Promote the early strength development of setting cement at low temperature.
Could be used in normal density, low density and high density cement slurry systems.
Used below temperature of 60℃（140℉，BHCT）.
Compatible well with other additives.
Recommended dosage range is 1.2-2.5% (BWOC).
Physical and chemical indicators
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CG910S |
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Appearance：White or faint yellow powder |
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Bulk Density, g/cm3: 0.90±0.10 |
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Water-Solubility: Soluble |
Cement slurry performance
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Item |
Test Condition |
Technical Indicator |
|
|
Density of normal density cement slurry (g/cm3) |
25℃, Atmospheric Pressure |
1.90±0.01 |
|
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Fluid loss, ml |
Fresh water system |
40℃, 6.9MPa |
≤50 |
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Thickening performance |
Initial consistency (Bc) |
40℃/28min, 24MPa |
≤30 |
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40-100 Bc thickening time, min |
≤20 |
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Ratio of thickening time |
≤0.6 |
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Free fluid (%) |
40℃, Atmospheric Pressure |
≤1.4 |
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Compressive strength for 8h, MPa |
≥5.0 |
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Compressive strength for 24h, MPa |
≥14 |
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Note: The ratio of thickening time refers to the ratio of thickening time of cement slurry with CG910S to the thickening time of pure cement slurry without any fluid loss additive. |
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Package and storage
Product shelf life is 12 months.
Packed in 25kg bags, or according to customer requirements.
Once expired, it shall be tested before use.
