Low-salinity brine injection has emerged as a promising, cost-effective improved oil recovery (IOR) method for waterflooding reservoirs. Laboratory tests and field applications show that low-salinity waterflooding could lead to significant reduction of residual oil saturation. There has been a growing interest with an increasing number of low-salinity waterflooding studies. However, there are f...

In the present study, the potential of a bacterial consortium of Enterobacter cloacae and Pseudomonas sp. (ERCPPI-2) for microbial enhanced oil recovery was investigated. Various mechanisms of enhanced oil recovery (EOR) as a result of using ERCPPI-2 and its metabolic products were studied in detail. The obtained results showed that under simulated reservoir ...

Naturally fractured reservoirs are highly dependent on capillary forces to recover hydrocarbons during water injection. Water can spontaneously imbibe and expel oil if positive exist; purely counter-current all sides of the matrix blocks exposed water; predominantly co-current with some production simultaneously. The latter is referred as a spontaneous imbibition (SI) setup. Wettability alterat...

OPINION article Front. Earth Sci., 08 September 2022Sec. Geochemistry Volume 10 - 2022 | https://doi.org/10.3389/feart.2022.1010741

Wettability is one of the main parameters controlling CO2 injectivity and movement plume during geological sequestration. Despite significant research efforts, there still a high uncertainty associated with wettability CO2/brine/rock systems how they evolve exposure. This study, therefore, aims to measure contact angle sandstone samples varying clay content before after laboratory core flooding...

The reservoir rock ismade up of differentminerals which contribute to the overall formation wettability. These minerals in their natural state differ chemistry and structure, thus behave differently an environment varying composition salinity. have direct implications for enhanced oil recovery due water flooding, or wettability alteration long-term exposure brine. With being a complex system mu...