Various enhanced oil recovery (EOR) methods are applied after primary and secondary
recovery stages to target remaining oil saturation (ROS). This remaining oil is divided into …

Surfactant flooding is one of the most promising chemical enhanced oil recovery techniques.
However, this technique has been mainly applied in sandstone rocks with limited …

Ionic modification of injected brines (Smart Water EOR) has previously demonstrated great
potential for wettability alteration in carbonates from initially mixed-wet toward more water …

With the still huge dependence on crude oil, it is crucial to develop enhanced oil recovery
techniques to improve reservoir production and lifespan. Carbonate reservoirs constitute …

A large proportion of extant crude oil is found in carbonate reservoirs worldwide.
Alkylbenzene sulfonates are inexpensive anionic surfactants but they cannot be used in …

Tight sands are abundant in nanopores leading to a high capillary pressure and normally a
low fluid injectivity. As such, spontaneous imbibition might be an effective mechanism for …

Different enhanced oil recovery (EOR) methods are usually applied to target remaining oil
saturation in a reservoir after both conventional primary and secondary recovery stages. The …

About one-half of the proven conventional oil reserves are in carbonate reservoirs. However,
conducting surfactant flooding in these reservoirs presents several challenges, including …

The promising experimental performance of surfactant blends encourages their use in
recovering the large quantity of crude oil still remaining in carbonate reservoirs. Phase …

Better use of already exploited oil reservoirs using Enhanced Oil Recovery techniques is
becoming essential. The use of surfactant blends is a common approach when individual …