Shale reservoir is characterized by complex pore networks, within which there are various
pore fluids including unrecoverable fluid, capillary bound fluid and movable fluid. Although …

Surfactant enhanced spontaneous imbibition is an effective method to enhance oil recovery
in shale reservoirs, however the mechanism is still unclear. This work attempts to investigate …

Hydraulic fracturing is the significant technology for exploiting tight resources. Spontaneous
water imbibition is an important mechanism governing the process of hydraulic fracturing …

Tight oil reservoirs are an unconventional hydrocarbon resource with great potential to help
meet energy demands. Horizontal drilling and hydraulic fracturing has been extensively …

Adding surfactants in fracturing fluids is a practical method for enhancing spontaneous
imbibition of shale oil reservoirs. However, both positive and negative observations are …

Spontaneous imbibition (SI) is an important method to improve oil recovery in tight
sandstone reservoirs. Commonly, the physical simulation of SI is performed at atmospheric …

Tight oil sandstones have obscured flow characteristics because of their complex pore
structure and ultralow permeability. In this study, representative elementary volume (REV) …

Simple Summary The characteristics of high-pore-volume (high-PV) waterflooding and the
mechanisms of enhanced oil recovery (EOR) are unclear. an experiment was conducted …

CO 2 huff 'n'puff is a promising enhanced oil recovery (EOR) technique for tight/shale
reservoirs, also enabling CO 2 geological storage. However, the effectiveness of this method …

Spontaneous imbibition (SI) is regarded as an effective method to improve the oil recovery in
a tight sandstone reservoir, which leads to a significant change in fracturing design and …