%0 Journal Article %T Preference of Nano porous graphene to Single-Walled Carbon Nanotube (SWCNT) for preparing Silica Nano hybrid Pickering Emulsion for potential Chemical Enhanced Oil Recovery (C-EOR) %J Scientia Iranica %I Sharif University of Technology %Z 1026-3098 %A AfzaliTabar, M. %A Alaei, M. %A Ranjineh khojasteh, R. %A Motiee, F. %A Rashidi, A.M. %D 2017 %\ 12/01/2017 %V 24 %N 6 %P 3491-3499 %! Preference of Nano porous graphene to Single-Walled Carbon Nanotube (SWCNT) for preparing Silica Nano hybrid Pickering Emulsion for potential Chemical Enhanced Oil Recovery (C-EOR) %K Pickering emulsion %K Nano hybrid %K Chemical Enhanced Oil Recovery (C-EOR) %K Silica %K Carbon nanotube %R 10.24200/sci.2017.4428 %X We have prepared Nanoporous Graphene/Silica Nanohybrid and demonstrated its better Pickering emulsion properties for Chemical Enhanced Oil Recovery in comparison to the similar Silica Nanohybrid with single-walled carbon nanotube. The samples were characterized with X-Ray Diffraction (XRD), Field Emission Scanning Electron Microscopy (FE-SEM) and Thermal Gravimetry Analysis (TGA). Emulsion phase morphology was investigated with optical microscopic image. Evaluation results demonstrated that the best samples are 70% Nanoporous Graphene/SiO2 (both methods) and 70% SWCNT/ SiO2 Nano hybrid (method 1). Contact angle measurement results showed that the 70% Nanoporous Graphene/SiO2Nanohybrid (method 2) is more effective for improvement of the stone reservoir wettability alteration from oil-wet to water-wet. Interfacial tension results indicate that the maximum amount is related to the injection of water and the minimum amount is related to the injection of Nanofluid of 70% Nanoporous Graphene/SiO2 Nano hybrid (method 2). This result indicates preference of 70% Nano porous Graphene/SiO2 Nanohybrid (method 2) for decreasing the interfacial tension in comparison to the other samples. %U https://scientiairanica.sharif.edu/article_4428_488f717def3c517fdf912b710522230b.pdf