... as thickener, emulsifier, suspending agent, stabilizer 2. Can increase the viscosity of drilling ... fluid, completion fluids and workover fluid, to effectively prevent formation damage. 3. High ... be avoided. The dosage is 0.2%-1.2%, adjusted if necessary. REQUIREMENT INDEX ... 60 mesh ) % ≥95 PH 6.5-7.2 viscosity , CP 1000-1600 Appearance viscosity ( mpa ... 0 ≤20..0 4%brine mud Base mud 2 ~ 5 1 ~ 3 ≤240 Dosage 0 ...