WF-3L Liquid Fluid-Loss Additive for Oilwell Cement (Acrylamide Type)

• Standards Basis: SY/T 5504.2–2013 (fluid-loss additives).

• API Fluid Loss (90 °C, 6.9 MPa), mL: ≤ 150.

• Initial Consistency (130 °C, 80.7 MPa, 65 min), Bc: ≤ 30.

• Thickening Linear Mutation Value, Bc: ≤ 10.

• Time from 40 Bc to 100 Bc (130 °C, 80.7 MPa, 65 min), min: ≤ 40.

• Compressive Strength (154 °C, 20.7 MPa, 24 h), MPa: ≥ 14.

• Free Water (90 °C, %): ≤ 1.4.

• Cement Slurry Composition: Class G cement, silica fume, quartz sand; others as required; Water: distilled.

Key Benefits

• Reduces API fluid loss at 90–130 °C, improving annular displacement and filter-cake quality to support high-temperature cementing.

• Controls the 40–100 Bc transition time and linear mutation value to ensure a safe pumpability window and operational safety.

• Compatible with dispersant/retarder/defoamer systems and with silica fume and quartz sand blends for well-specific optimization (project testing required).