01991nab a2200205 4500 20260520001752.0 260224s2010 xxu Experimental and numerical study of improving heavy oil recovery by alkaline flooding in sandpacks mar. 2010 14/06/2010 ; 10/06/2010 7 p. ; 51-57 Transcripción del resumen del autor. Chemical flooding has great potential for enhancing heavy oil recovery, especially for reservoirs where thermal methods are not feasible. It has been shown that the formation of emulsions during chemical flooding can effectively improve sweep efficiency and, consequently, increase heavy oil recovery. The mechanism of flow of oil-in-water (O/W) emulsion in porous media has been extensively studied and simulated using the filtration theory. Few studies have been done for the modelling of water-in-oil (W/O) emulsion flow in heavy oil reservoirs. This study experimentally investigated the effective viscosity of W/O emulsion in porous media. Alkaline flooding tests were performed in channelled sandpacks to demonstrate the effectiveness of sweep efficiency improvement by the in-situ produced W/O emulsions. High tertiary oil recoveries were obtained for all these tests. The alkaline flooding process was simulated by including the observed flow behaviour of extra resistance to water phase flow caused by the formation of W/O emulsions, as well as the adsorption of chemicals, interfacial tension reduction, and in-situ generation of W/O emulsions. These laboratory results and the developed simulation technique are proposed as an improvement to the simulation and design of the field-scale projects of chemical flooding for heavy oil recovery. 3 Journal of Canadian Petroleum Technology 49 ARTICULO Wang, J. 30474 Dong, M. 19398 Arhuoma, M. 42513 170900 170900 0 0 0 0 238719 BAAB BAAB 2026-03-05 200045756 0 200045756 2026-03-05 15:13:16 2026-03-05 ARTICULO