In this paper, recent advances in surfactant enhanced oil recovery (EOR) are reviewed. The
addition of alkali to surfactant flooding in the 1980s reduced the amount of surfactant …

Foam-enhanced oil recovery (EOR) is poised to become one of the most promising tertiary
recovery techniques to keep up with the continuously increasing global energy demands …

Foam mobility control and novel oil displacement mechanisms were observed in a
microfluidic device representing a porous media system with layered permeability. Foam …

Foam has been applied in enhanced oil recovery (EOR) for more than sixty years. The
surfactant-stabilized N 2/CO 2 foams are two of the most widely used foams in foam EOR …

Fracture networks play a more significant role in conducting fluid flow and solute transport in
fractured rock masses, comparing with that of the rock matrix. Accurate estimation of the …

The production of excess water during oil recovery creates not only a major technical
problem but also an environmental and cost impact. This increasing problem has forced oil …

Foams for subsurface applications are traditionally stabilized by surfactants. The goal of this
work is to study foam stabilization by nanoparticles—in particular, by in-situ surface …

Pore-level foam generation, propagation, and sweep efficiency were visualized using silicon-
wafer micromodels with an accurate representation of sandstone pore structure, grain …

Methane foam performance was systematically evaluated using high-pressure and high-
temperature experiments performed on oil-wet proppant packs. The sensitivities of foam …

An understanding of how CO2 foam flows through a reservoir rock is useful for many
subsurface applications, including enhanced oil recovery and CO2 storage. There are …