... .Good quanlity ,best price ! SGS ,BV 2.Poly anionic cellulose-HV,LV,RV 3.water-based drilling fluids Poly anionic cellulose Applications ... : PAC-HV is for water-based drilling fluids, which can effectively reduces ... suspension properties in a wide variety of fluid environment. PAC-LV is for use in solids-laden, water-based drilling fluids ...