1School of Civil and Resources Engineering, University of Science and Technology Beijing,
Beijing 100083, PR China 2Research Institute of Exploration and Production, Sinopec …

New experiments using polyethylene oxide (PEO) polymer were performed to evaluate its
potential for enhanced oil recovery (EOR) applications in low-permeability reservoirs. This is …

Gas-liquid displacement in porous media widely exists in many terrestrial/extraterrestrial
subsurface resource extraction and utilization applications. The typical fingering …

Waterfloods (WF) in viscous oil reservoirs (> 100 cp) are unstable and usually bypass a
large amount of oil. Polymer floods (PF) often follow waterfloods and improve oil recovery …

Hypothesis: In a porous medium saturated with oil (containing oleic surfactant) and saline
water, salinity reduction alters the thermodynamic equilibrium and induces spatial …

This study focused on the effects of the CO 2 phase on the formation mechanisms of residual
water. Based on nine groups of core-flooding experiments, the order of residual water …

Understanding fingering, as a challenge to stable displacement during the immiscible flow,
has become a crucial phenomenon for geological carbon sequestration, enhanced oil …

An efficient tertiary chemical flood involves the chemicals displacing the oil in a stable
manner, so the initially disconnected trapped oil ganglia coalesce into a bank as the flood …

The injection of a fluid to displace another fluid is a very common process used to enhance
the recovery factor in oil reservoirs. In circumstances where gravitational segregation and …

Carbonate oil reservoirs are important energy sources, accounting for over 60% of the
world's oil reserves. Recovering oil from these reservoirs is challenging, especially if they …