Impact of Nan
Impact of Nano-Particles on Static Performance of Surfactant Foams
Ali Heydarian 1, Riyaz Kharrat 1, Shahnaz Heydarian 2, Abdolnabi Hashemi 1
1. Petroleum University of Technology, Ahwaz, Iran
2. Shahid Chamran University, Ahwaz, Iran
Abstract: Nowadays stable foams frequently used in earth sciences and mainly in hydrology and petroleum engineering. Surfactant foam injection is a sophisticated way of enhanced oil recovery through wettability, viscosity and miscibility modification of reservoir rock and fluids. Foam modification and best foam selection based on static screening criteria of foam features; foamability (FA) and foam stability (FS) is of vital importance in foam injection design. Nano-particles (here alcohol-based nano-silica (NS) and water-based nano-zinc oxide (N-ZnO)) can improve surfactant foam features and it is necessary to investigate their effects on anionic, cationic and nonionic surfactant foams; here SDS, CTAB and LAE-7 respectively. Some contradictions between FA and FS results make it important to define a new definition considering FA and FS simultaneously here called static foam performance (SFP). Additionally, a correlation has been developed for checking of previous works results based on SFP concept. Results show that anionic surfactant; SDS foam has minimum FA, FS and SFP among all tested surfactants in presence of nano-particles and it is not a satisfying choice for foam processes. Addition of N-ZnO almost always increases the FA of surfactants. NS has negative effects on CTAB and SDS FAs for all concentrations, but intermediate concentrations of NS clearly show positive impact on nonionic surfactant; LAE-7.
[Heydarian A, Kharrat R, Heydarian S, Hashemi A. Impact of Nano-Particles on Static Performance of Surfactant Foams. J Am Sci 2013;9(6):444-449]. (ISSN: 1545-1003). http://www.jofamericanscience.org. 55
Keywords: Enhanced Oil Recovery (EOR), Foamability (FA), Foam Stability (FS), Static Foam Performance (SFP), Nano-Silica (NS), Nano-Zinc Oxide (N-ZnO) Full Text 55