The Effect of Nanoparticles on the Heat Transmission Features of Drilling Fluids

The efficiency and productivity of drilling fluids in any particular operations are mainly due to their heat transmission features. In this study, Improving the drilling fluids functions and boosting the heat transmission features of them through nanoparticles have been analyzed. In addition, hydraulic-based drilling fluids function and multi-layered carbon nanotubes, Nano Zinc oxide, Nano-SiO2-CNT particles in different speed, temperature and density of nanoparticles have been investigated. Multi-layered carbon nanotubes, silica nano silver oxide, have been synthesized, through chemical vapor deposition (CVD), pyrolysis Spray and sol-gel methods respectively .The silica-CNT hybrid nanoparticles are synthesized through functional MWNTs and silicon nanoparticles under specific conditions. Particles shape and size were determined by SEM and TEM . Different amount of distilled nanoparticles strengthened in German Arabic gum and homogenized in drilling mud (homogeneous). It was observed that the speed and temperature had an important influence on the thermal properties of the mud. The thermal function factor for all samples (modes) was bigger than the base (5.22% for 05.0 to 1% by weight of nanomaterials) and convection results show that the highest thermal function was related to the silica-CNT hybrid nanoparticles in the Reynolds number .The increase (progress) of heat transmission in the Reynolds number of 4200, are 31%, 24% and 74% at 200, 400 and 588 watts, respectively (thermal flux) .In addition, rheological properties such as appearance viscosity (AV), plastic viscosity (PV) and pointed yield (PY) was upgraded to drilling mud by nanoparticles increase.

کلیدواژه ها:

Rheology ، Convection ، Appearance Viscosity ، Carbon Nanotubes ، Nano-SiO2-CNT particles