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SUMMARY
1、 Retarder helps extend the thickening time of cement slurry in order to keep it pumpable, which, therefore, ensures sufficient pumping time for a safe cementing project.
2、 Thickening time has a linear relation with the added amount. The Right-Angle thickening curve can be achieved, and mutation of slurry consistency is small.
3、 Strength of set cement develops fast, and the top of the sealing section will not over-retarded.
4、 CH610 has a certain dispersion effect. In the cement slurry system containing CH610, suspension agent should be added to adjust the stability if necessary.
5、 Use below 150℃（302℉，BHCT）.
6、 Has good compatibility with polymer fluid loss additive, and little influence on fluid loss performance at high temperature.
7、 Use in freshwater or salt water, salt-tolerant up to saturated brine.
PHYSICAL AND CHEMICAL INDICATORS
|
Type |
Appearance |
Density, g/cm3 |
Water-Solubility |
|
CH610L |
White or faint yellow liquid |
1.20±0.05 |
Soluble |
|
Type |
Appearance |
Bulk Density, g/cm3 |
Water-Solubility |
0.315mm Residues, % |
|
CH610S-P |
White or faint yellow powder |
0.70±0.20 |
Soluble |
< 15 |
RECOMMENDED DOSAGE
|
Type |
CH610S-P |
CH610L |
|
Dosage Range (BWOC) |
0.2-2.0%（BWOC） |
0.3-4%（BWOC） |
CEMENT SLURRY PERFORMANCE
|
Item |
Test Condition |
Technical Indicator |
|
Initial consistency, Bc |
150℃/73min，94.4MPa |
|
|
40-100Bc thickening time, min |
≤40 |
|
|
Thickening time adjustability |
Adjustable |
|
|
Sudden change value of consistency, Bc |
≤10 |
|
|
Free fluid , % |
||
|
≥14 |
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Composition: API Class G(HSR) 600g, silica flour 210g(35%), silica fume 36g(6%), mixed water 342g (including), defoamer 1.8g(0.3%), CH610. |
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Note: The dosage of CH610 is determined under the precondition of adjusting the thickening time range of cement slurry at 150℃ to 200—375 min. |
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STANDARD PACKAGING AND STORAGE
1、 Liquid products should be used within 12 months after production. Packed in 25kg, 200L and 5 US gallon plastic barrels. S-P type powder products should be used within 24 months. Packed in 25kg bag. Customized packages are also available.