Summary
DOC-411S is a type of fluid loss additive that the main component was AMPS polymers, which has good universality and can be used in a group of slurry system.
The product was suitable for a wide temperature range, and its high temperature resistance up to 230℃. The cement slurry with this product had good fluidity, stability, less free water, no retarded effect, rapid strength development and has no special need to slurry-mixing water. Used in Both Fresh Water, Salt Water, Sea Water.
Physical and Chemical Properties
Item | Index |
Appearance | White or light yellow powder |
Bulk density, g/cm3 | 0.92±0.20 |
Solubility, % | 100 |
Moisture content, % | ≤5.0 |
Cement SlurryProperties
Item | Index | Test conditions |
Fluid Loss, mL | ≤50 | 80℃, 6.9MPa |
Thickening Time, min | ≥60 | 80℃, 45MPa/45min |
Initial Consistency, Bc | ≤25 | |
Compressive Strength, MPa | ≥14 | 80℃, Normal pressure, 24h |
Free Water, mL | ≤1.0 | 80℃, Normal pressure |
Slurry composition：100% Class G cement (high sulfur resistant), and 44.0% (BWOC) fresh water, and 0.6% (BWOC) DOC-411S, and 0.5% (BWOC) DOC-X60L。 | ||
Applications
The recommended operating temperature was below 230℃(BHCT).
The recommended dosage was 0.6-1.5% (BWOC) in Fresh Water & Low Temperature and 0.6%-2.0% (BWOC) in Salt Water & High Temperature.
