l ZOC-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.
l 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, noretardedeffect, 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
White or light yellow powder
Bulk density, g/cm3
Moisture content, %
Fluid Loss, mL
Thickening Time, min
Initial Consistency, Bc
Compressive Strength, MPa
80℃, Normal pressure, 24h
Free Water, mL
80℃, Normal pressure
Slurry composition：100% Class G cement (high sulfur resistant), and 44.0% (BWOC) fresh water, and 0.6% (BWOC) ZOC-411S, and 0.5% (BWOC)SX60L。
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.