By a News Reporter-Staff News Editor at Energy Weekly News -- A new study on Nanoparticles is now available. According to news reporting from Tehran, Iran, by VerticalNews journalists, research stated, "Anatase and amorphous TiO2 nanoparticles were used to improve recovery of heavy oil from sandstone cores. Before performing core floods, the stability of nanoparticles at different salinities was tested using zeta potential and ultraviolet-visible (UV-vis) methods."
The news correspondents obtained a quote from the research from the Sharif University of Technology, "Mile water recovered only 49% of the oil in the core flood experiments, 0.01% anatase structure solution recovered 80% of the oil after injecting two pore volumes at optimum conditions. To understand the mechanism responsible for improved recovery, contact angle measurements were performed on the rock surface before and after treatment with the nanoparticle solution. Contact angle measurements showed that the rock wettability changed from oil-wet to water-wet conditions after treatment with nanoparticles. In 0.01% concentration, scanning electron microscopy (SEM) results showed homogeneous deposition of nanoparticles onto the core plug surface and a few nanorods with a diameter about 60 nm were,observed. Energy-dispersive spectrometry (EDS), confirms diffusion of nanoparticles in porous media and uniform distribution. When the nanoparticle concentration was increased, more nanorods with the same diameter were composed, which resulted in, plugging to occur."
According to the news reporters, the research concluded: "These results indicated the possibility of TiO2 application in enhanced oil recovery (EOR); however, more investigation is required to overcome multi-nanoparticle deposition onto pores."
For more information on this research see: Enhanced Heavy Oil Recovery in Sandstone Cores Using TiO2 Nanofluids. Energy & Fuels, 2014;28(1):423-430. Energy & Fuels can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; Energy & Fuels - www.pubs.acs.org/journal/enfuem)
Our news journalists report that additional information may be obtained by contacting H. Ehtesabi, Sharif Univ Technol, Chem & Petr Engn Department, Tehran, Iran. Additional authors for this research include M.M. Ahadian, V. Taghikhani and M.H. Ghazanfari.
Keywords for this news article include: Iran, Asia, Tehran, Energy, Nanorod, Oil & Gas, Treatment, Oil Recovery, Nanotechnology, Emerging Technologies
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