whatsapp: ************9 Drilling starch is non-ionic corn ,wheat and potato-based polymers for use in all water-based drilling, completion and stimulation fluids. Drilling starch is extensively used as an additive to prevent the seepage of soil filtrates into the wells in all types of water based drilling fluid systems by increasing the viscosity of the drilling mud and reducing the fluid loss by sealing the walls of the Borehole. High quality biocide added to resist against bacterial and enzymatic degradation.