... by the functionalization and amino groups bound to the MSNs. DLS and SEM analyses showed that the amino functionalized MSNs are 100 nm in size and maintain their chemical stability when present in high salinity water (HSW). IFT measurements showed that interfacial tension is reduced when the amino functionalized MSNs...

... to their storage, a systematic study relating pressure to the gas adsorption capacity of Jordanian shale formations is conducted. Additionally, the pendant drop method and the Axisymmetric Drop Shape Analysis technique are used to measure and evaluate brine-gas interfacial tension (IFT) as a function of pressure...

... enhanced recovery adsorption spontaneous imbibition upstream oil & gas concentration imbibition solubilization shengli oilfield mechanism htpf-nf experiment quartz flake sior operation resistance waterflooding surfactant reservoir ift journal petroleum science...

... system, compared to 11.4% from low-salinity brine only. The oil recovery is enhanced by a single mechanism or synergy of several mechanisms that includes interfacial tension (IFT) reduction by surfactant, capillary imbibition, favorable wettability alteration by ketone, and osmotic low-salinity brine...

...Materials and Methods Synthetic Brines: Abstract Even though the influence of wettability alteration on imbibition is well-documented, its synergy with Interfacial-Tension (IFT) for Alkali/Nanoparticles/Polymer flooding requires additional investigation. Particularly, when the oil Total...

... concentration. Results indicate improved oil production with longer exposure time of the key surfactants within the reservoir. Enhanced surface wetting and super-low interfacial tension (IFT) at lower chemical concentrations are recognized to be the main mechanisms. The novel surfactant also shows stronger...

... performance carbonate reservoir capillary pressure core analysis ift oil recovery complex reservoir simulation Introduction The pore scale displacement of WAG at near-miscible condition differs significantly from that of immiscible WAG in mixed-wet systems. Sohrabi et al. (2005, 2008a, 2008b...

... can be improved by adding surfactants to stimulation fluids to promote imbibition by wettability alteration and interfacial tension (IFT) moderate reduction. Also, the extent of surfactant adsorption on the ULR surface during imbibition of completion fluids is an important factor to take into account...

... in foot long carbonate cores to compare their stability and effectiveness in incremental oil recovery. Interfacial Tension (IFT) experiments were also performed with the most performant surfactant at the same conditions and surfactant concentration to further highlight its contribution in increasing oil...

... gravity effect, the used surfactant reduced interfacial tension (IFT) from 40 mN/m to 3 mN/m. For this mode of recovery, ultralow IFT is not preferred because some capillary action is needed to aid injectant transport into the matrix. The vertical experiment showed that gravity has the potential...

... Abstract This paper presents the second phase of a comprehensive, three-year laboratory study designed to measure gas-water interfacial tension (IFT) at high-pressure/high-temperature (i.e., HP/HT) reservoir conditions. The first phase of our laboratory study ( Rushing, et al., 2008a...

...-driven process. Rate of oil recovery increases with an increase in the extent of wettability alteration towards water-wet condition, temperature, and fracture density. Increase in IFT increases the oil recovery rate if the wettability can be changed to water-wet conditions and vice versa if the rock...

... ppm CaCl 2 and 7210 ppm MgCl 2 . Tertiary surfactant floods were initiated after waterflooding. In a few cores, surfactant flooding was conducted in the secondary mode, i.e., no waterflooding was conducted. Phase behavior studies are needed to identify regions of low IFT, high oil solubilization...

... Upstream Oil & Gas experiment surfactant solution enhanced recovery IFT oil saturation spontaneous imbibition interfacial tension Artificial Intelligence displacement pore-level mechanism injection waterflooding micromodel spe 136194 image analysis recovery efficiency two...

... been no report of a study of flow behaviour within propped fractured porous media for these low interfacial tension (IFT) systems. It is now a well established finding both experimentally and theoretically that the flow of gas-condensate fluid systems in porous media is affected by both coupling...

... machine learning subsurface storage IFT composition coefficient interfacial tension ppm brine system flow in porous media carbon dioxide co 2 salinity regression coefficient permeability Artificial Intelligence Fluid Dynamics correlation enhanced recovery solubility Upstream...

... ultralow IFT at the rear of the slug, where it was displaced by an aqueous polymer solution and became a Winsor I microemulsion ( Hirasaki, 1981 ). Abstract Recent advances in surfactant EOR are reviewed. The addition of alkali to surfactant flooding in the 1980s reduced the amount of surfactant...

...) which enhances the oil recovery rate. enhanced recovery carbonate reservoir chemical flooding methods Upstream Oil & Gas flow in porous media Fluid Dynamics Phase Behavior concentration contact angle experiment viscosity recovery complex reservoir IFT relative permeability...

... and slimtube measurements of the MMP are available. We show that tuned equation of state characterizations using 15-components to represent the gas/oil systems yield calculations of phase compositions and densities and calculated MMPs that reproduce accurately the experimental observations. We assume that IFTs...

... their effect on the interfacial tension between CO 2 and equilibrium brine. The results indicate that the CO 2 -brine IFT decreases with increasing pressure, while increasing temperature and brine salinity have an opposite effect. These results were then extended under similar controlled conditions...