Product Description
DOC-FL35S (641S) is a kind of polymer fluid loss agent for oil well cement. AMPS is the main monomer and is copolymerized with other salt-resistant monomers. It plays an important role in salt resistance, temperature resistance, adsorption of free water, and water loss reduction.
DOC-FL35S (641S) has good versatility and can be used in various cement slurry systems, with good compatibility with other admixtures.
DOC-FL35S (641S) has a high low shear rate viscosity, which can effectively enhance the suspension stability of the cement slurry system, while maintaining the fluidity of the slurry and preventing settlement.
DOC-FL35S (641S) is suitable for a wide range of temperatures, with a high temperature resistance of up to 180℃. The cement slurry system has good flowability and stability, with less free liquid and no delayed setting. The early strength development at low temperatures is fast.
DOC-FL35S (641S) is suitable for fresh water/saltwater slurry mixing.
Physical and Chemical Indicators
Item | Index |
Appearance | White to light yellow powder |
Cement Slurry Property
Item | Technical index | Test condition |
Fluid loss,mL | ≤100 | 80℃,6.9MPa |
Compressive strength,MPa | ≥14 | 80℃, atmospheric pressure ,24h |
Free fluid,mL | ≤1.0 | 80℃, atmospheric pressure |
Cement slurry composition：100% G-grade cement (high sulfur resistance)+44.0% fresh water+0.6% DOC-FL35S (641S)+0.5% defoamer. | ||
Application Scope
Temperature: Below 180 °C (BHCT).
Recommended dosage:Below 3.0% (BWOC) .
Packaging
25kg/bag package , or according to customer requirements.
The shelf life is 12 months.
