Field Applications of Organic Oil Recovery—A New MEOR Method

Biosurfactant Derived from Fenugreek Seeds and Its Impact on Wettability Alteration, Oil Recovery, and Effluent Treatment of a Rock System of Mixed Composition

“…Chemical-EOR is gaining enormous attention because of its better performance in extracting oil from reservoirs and compatibility with most of the reservoir conditions. , In general, this comprises the injection of displacing slug that helps modify the formation condition and mechanism of oil displacement. , Chemical-EOR involves the use of alkali, surfactant, and polymer or fusion of them . Among alkali, surfactant, and polymer, surfactant flooding is a notable chemical-EOR technique as it directly impacts on interfacial tension (IFT) of crude oil . This is helpful to improve the capillary number and wettability alteration, resulting in a higher amount of oil that can be mobilized from porous and permeable throats. , Addition of surfactants seems highly effective in reducing IFT in the oil–water system and the charge on the surfactant has to play a major role in the reduction of IFT as the molecules of the ionic surfactant possess some charge and these charges form a monolayer at the interface of the system .…”

“…10 Among alkali, surfactant, and polymer, surfactant flooding is a notable chemical-EOR technique as it directly impacts on interfacial tension (IFT) of crude oil. 11 This is helpful to improve the capillary number and wettability alteration, resulting in a higher amount of oil that can be mobilized from porous and permeable throats. 10,12 Addition of surfactants seems highly effective in reducing IFT in the oil− water system and the charge on the surfactant has to play a major role in the reduction of IFT as the molecules of the ionic surfactant possess some charge and these charges form a monolayer at the interface of the system.…”

Integrated microbial enhanced oil recovery (MEOR) simulation: Main influencing parameters and uncertainty assessment

“…Microbial enhanced oil recovery (MEOR) has been touted as the salvager recovery method for stripper wells in the future (Govreau et al, 2013). In that, it has been proven easy to develop and maintain since there is no need to change existing production facilities for both primary and secondary oil recovery stages (Ansah et al, 2018a).…”

“…In that, it has been proven easy to develop and maintain since there is no need to change existing production facilities for both primary and secondary oil recovery stages (Ansah et al, 2018a). Per this view, stripper wells can be great candidates for MEOR economically, to mobilize and push out the trapped oil left in these reservoirs (Rashedi et al, 2012;Govreau et al, 2013). This is also possible as a result of the abundance of microbes in oil reservoirs, their ability to grow and produce bioproduct as well as the cheap nature of nutrients to stimulate microbe growth (Bryant and Douglas,1998).…”