PGF-1 can reduce filtration effectively, inhibit shale, and keep thermal stability.

PNP-1 has a strong capability to reduce filtration loss but it also has a good thermal stability and strong resistance to salt and calcium.

PFL-1is amphoteric multi polymer. PFL-1 illustrates good performance in filtration loss control with the capability of salt, calcium, and magnesium inhibition.

Advanced filtrate reducer with low molecular weight, small viscosity effect, resistance to high temperature, salinity and excellent filtration control capability.

PSP-2 is a synthesized polymer filtrate reducer that can increase the viscosity effectively in freshwater muds and increase the viscosity slightly in brine muds.

PSP-1 is a copolymer with excellent salt and high-temperature resistant product.

PSO-1 is a nitrile silicone polymer with excellent capabilities in salt-resistance up to saturation and high-temperature resistance up to 220 ℃.

PLY-1 is a water-soluble polymer filtration control agent. PLY-1 has excellent performance filtration control performance and high-temperature resistance.