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Enhanced Heat Transfer of Drilling Fluid with Titania Nanofluid

Sabbaghi S, Saboori R and Barahoei M

In a recent decade, the ability of nanofluid in enhancing the heat transfer is considered as the one of its major usage. Due to this property, it can be utilized in oil and gas industries. In this research, sol-gel method is employed to synthesis TiO2 nanoparticles. Particle size analyzer, X-ray diffraction, scanning electron microscopy and fourier transform infrared spectroscopy are used to determine the characterization of TiO2. The results demonstrate that the synthesized TiO2 nanoparticles have a good scatter and thin size distribution; also it is shown that the average size of nanoparticles is about 20 nm. The stabilization of Titania nanofluid is optimized by two factors of CTAB surfactant and pH. To improve the thermal properties, nanofluid is added to drilling fluid. Titania nanofluid is characterized by particle size analyzer and sedimentation test. The results indicate that the size of nanofluid is 60 nm. Furthermore, it is observed that adding nanofluid to drilling fluid leads to increase about 150% in thermal conductivity coefficient.