Surfactants employed in conventional and unconventional reservoirs for enhanced oil recovery—A review

• DOI: 10.1016/j.egyr.2022.01.187
• Publication Date: 2022-02-14T18:15:40Z
• Authors: Oguntade Tomiwa I...; Hui Pu; Babalola Aisosa Oni; Fadairo Adesina S...
• Keywords: Oil in place; Micromodel

Due to the continuous depletion of crude oils in reserves, and rise energy demand, there is currently a widespread interest various methods chemical enhanced oil recovery (EOR). Surfactants flooding improves by combining mechanisms this approach has proven be effective. Surfactant still threatened problems which are unstable under excessive adsorption harsh reservoir conditions. Research shown that anionic surfactant most preferred for EOR specifically with sandstone reservoirs. In some cases, after injecting non-ionic, cationic, or both surfactants, into carbonate reservoirs, better performance been documented. To produce surfactants reservoirs properties such as high/ultra-high temperature, ultra/high viscosity, ultra-high salinity, low/extra-low permeability, new knowledge needed. An ideal highest should possess larger IFT reduction, wettability alteration, asphaltene inhibition capabilities. This review provides an experimental study on application conventional unconventional EOR. Thus, establishing good foundation preparing designing prospective field-scale supported systems. Furthermore, presents influence oilfield element variation during flooding, types mechanisms, its mitigation, phase behavior etc.