Drilling fluids, also known as drilling muds, and the materials used in their composition, play essential roles in the drilling industry, particularly for oil, gas, and geothermal wells. These fluids are complex mixtures designed to facilitate the drilling process by stabilizing the wellbore, cooling and lubricating the drill bit, controlling formation pressures, and removing drill cuttings from the well. The choice of drilling fluids and materials is critical, as they must effectively perform these functions while minimizing any detrimental interactions with the cement used to secure the steel casing and ensure zonal isolation within the borehole.