Synthesis, Characterization and Filtration Properties of Ecofriendly FeO Nanoparticles Derived from Olive Leaves Extract.

Recently, value-added nanomaterials including nanoparticles or nanofluids have been significantly used in designing drilling fluids with tunable rheological properties to meet specific downhole and environmental requirements. In this work, we report novel water-based drilling fluids (WBDF) containing eco-friendly FeO nanoparticles (FeO-NPs) prepared by using olive leaves extract (OLE) as a reducing and capping agent. A series of economical and excellent performance of WBDF was obtained by introducing low, medium, and high concentrations of FeO-NPs into the conventional WBDF.