The effect of nanoparticles on the heat transfer properties of drilling fluids

It has been found that the velocity and temperature have an important effect on the thermal property of mud. The thermal performance factor for all the cases is greater than base mud (5-22% for 0.01-2 wt% nano-material) and convection results showed that the maximum thermal performance was found for the hybrid of CNT-silica nano-particle in higher Reynolds number. The heat transfer enhancement in 4200 Reynolds number, is 31%, 24% and 74% in 200, 400 and 588 W (heat fluxes), respectively. Furthermore, the rheological properties such as apparent viscosity (AV), plastic viscosity (PV) and yield point (YP) are improved by adding nano-particles to the drilling mud.