... The data provided in this study are embedded in Table 1 . The data are subdivided for each model to include the following: Videos showcasing the processes of drainage and imbibition in that respective porous media. A segmented image of the model to analyze porosity. A stack of 2D...

... procedures. The potential for wettability alteration and resulting oil recovery by seawater (∼33000 ppm salinity) and Smart Water (<5000 ppm salinity, containing 20 mM SO 4 2- , Ca 2+ and Mg 2+ ) were compared in spontaneous imbibition tests at reservoir temperature (>100 °C). Waterflooding...

... 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...

... into the higher salinity side of the channel which we call the matrix pores. This imbibition expels more oil through the low perm-high perm interface, which is often referred to as ‘semi-permeable membrane’ ( Uzun and Kazemi, 2021 ). This occurs due to the difference in water activity between the injection 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...

... and surfactant aided spontaneous imbibition. The low salinity brine composition was optimized using zeta potential, contact angle experiments, and wettability index calculations. Significant surface reactions on dolomite rocks were observed at the salinity of 2500 ppm. Thirty-seven surfactants were evaluated...

... spacing, water saturation in the matrix and fracture, and formation compressibility. The different reservoir parameters lead to each model having different primary recovery driving mechanisms of oil recovery, including imbibition and compaction drive. In each simulation run, stress-dependent permeability...

...Methodology Abstract Various chemical additives have been recently proposed to enhance imbibition oil recovery from tight formations during the shut-in periods after hydraulic fracturing operations. Although, soaking experiments under laboratory conditions usually confirm the performance...

...) Alteration. However, studies of the accountable effects for the enhanced production are inadequate because of the peculiar properties of shale matrix, such as the extremely low permeability and initial wetness. In addition, the current studies mainly focused on the spontaneous imbibition (SI) because...

... using the Capillary pressure behaviour of rocks along with hysteresis trend of imbibition and drainage flows. structural geology porosity Reservoir Characterization droplet Upstream Oil & Gas enhanced recovery heterogeneous bioturbated sandstone sandstone bioturbated sample...

... recovery through wettability alteration and water/oil interfacial tension (IFT) reduction because most tight oil reservoirs are reportedly intermediate- to oil-wet. This paper presents a comparative study of two wettability modifiers with different characters for enhancing water imbibition from a fracture...

... screened: Cyclohexane, D-Limonene, Dodecane, Kerosene, Turpentine, and Green Solvent®. Most of the chemical blends with the solvents extracted about 60% of the oil from shale chips, but the Green Solvent® extracted about 84%. Spontaneous imbibition tests were performed with outcrop Mancos shale cores. Oil...

... is the final surfactant concentration in gpt, ρ surf is pure surfactant solution density in lb/gal, V surf is the surfactant volume in ml, and w rock is the powdered rocks weight in grams. Spontaneous Imbibition and CT scan Fluid Displacement Monitoring Spontaneous imbibition experiments were...

... Osmosis is a phenomenon of common occurrence in nature, especially in biological systems. In petroleum engineering, when low-salinity water (brine) contacts reservoir rocks with high salinity brine, in addition to capillary imbibition, osmotic pressure can also result. Osmotic pressure...

... porous media. Capillary imbibition is one of these significant phenomena and is considered through wettability in several mass transfer formulations (also called transfer functions) as the main mass driving force between matrix and fracture. This paper presents simulated results of waterflooding tests...

... or oil, a set of drainage and imbibition experiments was performed. NMR measurements were conducted before and after each saturation-desaturation step. After cleaning, pore size distribution was determined for four cores using MICP and nitrogen adsorption tests. Finally, resistivity was measured for five...

... Exhibition fracture-fluid flowback dry gas region recovery WGR st year gas production gas Region pore water production flow mechanism capillary pressure investigation hydraulic fracture imbibition Introduction Fracture-fluid flowback is one of the most important indicators of shale gas...

... 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...

... imbibition and osmosis processes, V- Enhancement of porosity and permeability of fracture surfaces by introduction of a delayed reaction mechanism to deliver acids deeper into the microfracture network without compromising rock mechanical properties. The presence of sulfate ions in the oxidizing agent did...

... enhanced recovery chemical flooding methods experiment imbibition microemulsion viscosity coreflood surfactant flood matrix complex reservoir limestone core oil saturation fracture Upstream Oil & Gas salinity permeability surfactant solution Oil Recovery Introduction...