Retarder helps to prolong the thickening time of cement slurry, allowing for a longer pumpling time, which is crucial for a successful cementing operation.
This product is suitable for use in systems operating at low to moderate temperatures, up to 90℃ (194℉, BHCT).
It can be mixed with water and doesn’t require specific water quality.
If the curing temperature is lower than the bottom hole circulating temperature, the strength of the set cement at the top may be affected.
When the temperature exceeds 95°C, the dosage of CH210L should be increased, as the strength of the set cement at the top may be compromised.
Summary
Retarder helps to prolong the thickening time of cement slurry, allowing for a longer pumpling time, which is crucial for a successful cementing operation.
This product is suitable for use in systems operating at low to moderate temperatures, up to 90℃ (194℉, BHCT).
It can be mixed with water and doesn’t require specific water quality.
If the curing temperature is lower than the bottom hole circulating temperature, the strength of the set cement at the top may be affected.
When the temperature exceeds 95°C, the dosage of CH210L should be increased, as the strength of the set cement at the top may be compromised.
Physical and chemical indicators
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CH210L |
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Appearance: Colorless liquid |
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Bulk Density, g/cm3: 1.10±0.05 |
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Water-Solubility: Soluble |
Cement slurry performance
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Item |
Test Condition |
Technical Indicator |
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Thickening performance |
Initial consistency, Bc |
80℃/45min, 46.5MPa |
≤30 |
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40-100Bc thickening time, min |
≤40 |
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Thickening time adjustability |
Adjustable |
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Sudden change value of consistency, Bc |
Normal |
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Free fluid , % |
80℃, Atmospheric Pressure |
≤1.4 |
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24h compressive strength, MPa |
80℃, 20.7MPa |
≥14 |
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Composition: API Class G (HSR) 700g; mixed water 308g (including); defoamer 1.4g (0.2%); CH210L. |
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Remarks: the dosage of CH210L is determined under the precondition of adjusting the thickening time range of cement slurry from 130—270 min at 80℃. |
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Package and storage
The liquid type products should be used within 12 months of their production date.
Packed in 25kg, 200L and 5 US gallon plastic barrels.
Customized packaging is available.
Once expired, it shall be tested before use.
