... was purchased from Fisher Scientific. The density is 0.73g/cm 3 at 20°C and molecular weight is 142.28g/mol. Calcite plate Abstract Wettability alteration and interfacial tension (IFT) reduction are two important mechanisms for enhanced oil recovery (EOR). The introduction of nanotechnology from...

... conducted on oil-wet calcite plates to evaluate their wettability altering capabilities. Second, spontaneous imbibitions in a microchannel were performed to study the role of IFT- reduction and wettability-alteration by these formulations. Third, static foam tests were conducted to evaluate their foaming...

... stability at these harsh conditions. Contact angle experiments on aged calcite plates were done to narrow down the list of surfactants and spontaneous imbibition experiments were conducted on field cores for promising surfactants. Secondary waterflooding was conduceted in cores with and without...

... Abstract Surfactants have been identified that can change the contact angle of an initially oil-wet calcite plate for all four types of reservoirs: low temperature-low salinity (<50 °C, < 3 wt %), high temperature-low salinity (70-90 °C, < 3 wt %), low temperature-high salinity (<50...

... permeability surfactant carbonate reservoir oil saturation reservoir Upstream Oil & Gas calcite plate proceedings wettability Oil Recovery symposium contact angle waterflooding Introduction Over 60 % of the world's remaining oil lies trapped in carbonate reservoirs ( Akbar, et al. 2000...