Study on the influence of SiO2 nanofluid on the performance of oil-based drilling fluid
Oil-based drilling fluid is widely used in drilling due to its high-temperature resistance,resistance to salt and calcium invasion,good lubricity,and benefits for wellbore stability.The effects of adding different mass fractions(0.5%-2%)of SiO2 nanofluid to oil-based drilling fluid on its viscosity,rheological properties,filtration loss,friction and other properties are studied.The results indicate that the addition of nanoparticles to oil-based drilling fluid has a significant impact on the performance of the drilling fluid.Even at low nanofluid mass fractions,the physical and chemical parameters of oil-based drilling fluid will be significantly improved,indicating that the application of nanoparticles can become the research direction for improving the performance of oil-based drilling fluid.
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