PFF-II
Cationic Asphalt Poweder
PFF-II is compounded by natural asphalt and composite surfactant. PFF-II has higher asphalt content than sulfonated asphalt and emulsified asphalt. PFF-II in the drilling fluid can be adsorbed on the surface of shale to form a thin and tough hydrophobic film with small permeability. PFF-II can also block the throat and micro-fracture under differential pressure to provide effective prevention of filtrate invasion into formation. With the excellent inhibiting ability of its cationic group, PFF-II can effectively stabilize the borehole by preventing shale from hydration swelling and peeling off. The recommended dosage is 3.5 -10.5 ppb.
PFF-II Features
Good water dispensability without flocculation and floating issues Good shale inhibition and sealing property Increases viscosity slightly, suitable for high density drilling fluids Resists temperature to 220℃ and can be applied to high-temperature deep well drilling fluids Resists salt and calcium, can be applied in various freshwater, brine, seawater, saturated salt, and water drilling fluidsStorage
Packaged in 25kg multi-wall paper sacks. It is recommended that the product be stored in a shady, dry, and ventilated place.
Safety
Avoid contact with eyes, skins and clothes; please refer to SDS for more information.