Pre-gel starch is used as a cooling agent for drilling drills and to reduce water consumption during drilling operations, which causes resistance to heat, creates high viscosity, and prevents the walls of the well from collapsing. Of course, increasing this power also depends on the shape, size of the cut, density and speed of the upward movement of the fluid. This material is able to clean the hole of drilling fluids and is used as a filter agent. Among the other properties of this material in the drilling industry is the preservation of water in oil well drilling to prevent its loss and sedimentation in the well.