The wettability of carbonate rocks is often oil-wet or mixed wet. A large fraction of oil is still
remained in carbonate reservoirs, it is therefore of particular significance to implement …

Changing the wetting state of materials is a growing field of research in many areas of
engineering and science. In the oil industry, the term wettability alteration usually refers to …

Surfactant flooding has emerged as an interesting enhanced oil recovery (EOR) process
due to wettability alteration and reduction of oil-water interfacial tension (IFT). Environmental …

This paper reviews recent developments in enhanced oil recovery (EOR) techniques
published in SPE conference proceedings for 2007 to 2009. It also updates the EOR criteria …

Reservoir wettability plays an important role in various oil recovery processes. The origin
and evolution of reservoir wettability were critically reviewed to better understand the …

Development of mature oil fields has been, and will increasingly be, an attractive subject.
Mature field development practices can be divided into two major groups:(1) well …

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

Spontaneous imbibition is critical in the oil recovery process for low permeability and tight
reservoirs, which is driven by the capillary pressure. In the waterflooding process, dynamic …

In all the enhanced oil recovery processes, flow of displacing and displaced fluids on a
microscopic scale in a petroleum reservoir rock is affected by the wettability of the reservoir …

Water blocking can be a serious problem, causing a low gas production rate after hydraulic
fracturing, a result of the strong capillarity in the tight sandstone reservoir aggravating the …