
In a project funded by the German Ministry of Economics and Climate Protection (BMWK) we recently developed a novel high temperature stable water-based drilling fluid with exceptional carrying and borehole cleaning properties, thus allowing a significantly improved rate of penetration, with substantially reduced drilling cost. This drilling mud exhibits an exceptionally high Yield Point and low Plastic Viscosity for easy pumping and effective solids control. Explicit technical details on the properties of this fluid will be included in the presentation.