The well construction process is inherently linked to the destruction of rock formations within the wellbore and the transportation of drilled cuttings to the surface. Therefore, one of the most critical technological aspects of well construction is the effective cleaning of the wellbore by drilling fluids. A rise in temperature can lead to significant changes in the properties of drilling fluids, such as a reduction in viscosity, increased fluid loss, and a decrease in rheological parameters. These changes negatively impact the wellbore cleaning efficiency, which may result in severe operational challenges, including wellbore collapse and drill string sticking. This research explores the effects of incorporating nanoparticles into water-based drilling fluids on their rheological behaviour, fluid loss control, thermal stability, and electrical resistivity within a temperature range of 25°C to 90°C.