... agent DSP-2, Description:Sulfonate copolymer filtration reduction agent DSP-2, which is made of acrylamide, ... loss, improving mud cake quality, inhibiting clay dispersion, flocculating drilling cuttings, controlling solid content and formation mud making, ensuring the ... magnesium, applicable to salt water, saturated brine and sea water drilling fluids Sulfonate copolymer/drilling chemical/additive