| Investigation of new NiO/SiO2 nanocomposites for ultralow Interfacial Tension in Soroush heavy oil field comparing with NiO and SiO2 nanoparticles |
| Paper ID : 1204-UFGNSM-FULL |
| Authors: |
|
kaveh padasht dahkaee1, zahra fakhroueian2, Mohammad Taghi sadeghi *3 1Process simulation and control Lab. chemical Engineering collage, Iran University of Science
and Technology (IUST), Narmak, Tehran, Iran. 2P.O. box:11155-4563, Tehran, Iran. 3Process simulation and control Lab. School of Chemical Engineering, Oil and Gas University of Science and Technology (IUST), Narmak, Tehran, Iran |
| Abstract: |
| The effect of nickel oxide (NiO) nanoparticles based on silica as nano substrate, on reducing of interfacial tension (IFT) was investigated for enhanced oil recovery (EOR) for one of the soroush heavy oil field containing 1310 cp viscosity in ambient temperature for the first time. Thus, different weight percentages of NiO and SiO2 nanoparticles (NPs) were synthesized and injected into soroush heavy oil and their effects on interfacial tension were considered and determined by using new formulation of their nanofluids. NiO/SiO2 nanocomposites was synthesized by co-precipitation-hydrothermal method and also silica and NiO NPs were fabricated by sol-gel-hydrothermal process. On the other hand, the important factors such as pH, concentration and aging time was investigated on the reduction of IFT of du Noüy ring method (Sigma 701 model). In addition, water and oil interfacial tension was reported to 29.02 mN /m as reference without using nanoparticles. Furthermore, 15 ml nanofluid of 30 wt% NiO/SiO2 nanocomposites in 30 ml of distilled water was dissolved and IFT was recorded to 1.28 mN/m. Whereas, 15 ml nanofluid of 28 wt% Fe/NiO/SiO2 as new nanocomposites was dissolved in the same as water and IFT was determined to less than of 1 mN/m. Therefore, iron oxide NPs can show the best activator for high surface energy of NiO/SiO2 nanocomposites. Thus, the Authors tried to produce novel hydrophilic and eco-friendly nanofluids by doing surface modification through the organosilane and PEG polymer because creating the hydrophilic energetic surface of nanoparticles with high effective surface area (BET) which to be able to decrease wettability alteration and IFT in EOR recovery technique. Finally, our observations indicate that NiO/SiO2 nanocomposites and surface modification products for making of smart unique nanofluids can significantly reduce interfacial tension compared with the silica and NiO nanoparticles alone. |
| Keywords: |
| Nanocomposites, NiO/SiO2, Smart nanofluids, EOR, Reduction of IFT, Surface modification, organosilane, Hydrophilic surface, Heavy Oil |
| Status : Paper Accepted (Poster Presentation) |
