... drastically based on the pore-material and fluids filling the pores. It covers a wide range of wetting conditions where the classification of reservoirs, as either oil-wet or water-wet, is an exaggeration ( Morrow, 1990 ). The majority of reservoirs are found to be more of mixed wettability rather than single...

... and salinity at 333 K. The wettability of Jordanian shale is also measured using the sessile drop method at different gas pressures and varying salinities. The results show that the adsorption capacity of shale is positively correlated with pressure. CO 2 adsorption capacity is found to be orders of magnitude...

...Functional groups analysis for supplemental investigation of kerogen wettability For each time step, relative changes of sulfate ions were analyzed by using the Thermo Scientific Dionex Aquion Ion Chromatography, to estimate the kerogen oxidation. Before the reaction, pyrolysis experiments...

... The objective of this experiment was to evaluate our Asphaltene Solvent System by performing a dissolution test, wettability test, and stability test to compare with the actual Xylene system and review the advantages and properties of the new system. This solvent system can be tailored...

... recovery from the fractured chalk reservoir, Ekofisk, on the Norwegian Continental Shelf. Extensive laboratory studies the last decades have shown that Smart Water flooding has potential of greatly improving oil recovery beyond that obtained by standard waterflooding, due to wettability alteration, which...

... that provide an averaged assessment of wettability. The first uses fundamental principles in topology to relate the contact angle to the integral of the Gaussian curvature over the fluid-fluid meniscus. The advantage of this approach is that it replaces the uncertain determination of an angle at a point...

... experiments on calcite were carried out at 347 K and atmospheric pressure with 68000-ppm reservoir brine (RB), and 4 different concentrations of glycine, acetate, and formate solutions in RB. To test the hypothesis that calcite dissolution is one of the main mechanisms in wettability alteration by glycine, we...

... are due to emulsion blocking, change in wettability, swelling and migration of clays, incompatibility of fluids, and scale formation. A detailed design of completion fluids has a positive influence over well productivity by mitigating formation damage before starting the production stage. The methodology...

...Drainage Data analysis Abstract Smart waterflooding is an economic and effective method to improve oil recovery in carbonate oil reservoirs. Recent studies show controlling the salinity and ionic composition of injection water can alter the wettability of carbonate mineral surfaces...

... properties, including the viscosity, interfacial tension (IFT), and wettability. Although the potential of NPs to improve oil recovery is magnificent, the effect of NPs during alternating injection is still vague. The main objective of this study is to investigate the best recovery mechanisms during...

... upstream oil & gas energy & fuel enhanced recovery adsorption composition silica wettability mechanism morrow carboxylate waterflooding brine functional group crude oil rock surface petroleum science wettability alteration oil recovery Introduction More than 60...

... to determine if the efficacy of CO2-based enhanced oil recovery (EOR) techniques for unconventional liquid reservoirs (ULRs) can be increased through wettability alteration by adding a dilute non-ionic surfactant to CO 2 . The use of surfactants to increase the water-wetness of rock surfaces has previously...

... are the interfacial characteristics such as interfacial tension and wettability ( Thomson 1872 ; Hamada et al. 2007 ). Typically, injecting foreign fluids into reservoirs with higher pressures leads the injected gases to condense, depending on their saturation pressures. The phenomenon has a significant effect...

... and wettability alteration by the surfactant. For the plug with S wi = 0.21, k o eff increases from 0.85 µD to 1.08 µD that can be explained by the combined effects of Swi reduction and wettability alteration, favorably shifting the oil relative permeability curve. fluid dynamics imbibition test flow...

...Introduction well logging texas cream limestone wettability index workflow enhanced recovery berea sandstone water saturation wettability state upstream oil & gas nmr measurement assessment saturation log analysis resistivity index estimate water saturation model parameter...

.... The importance of rock composition is apparent; it affects several parameters such as stability, adsorption, wettability, porosity, and the amount of bound fluid contained within the rock. Since the received core samples were not preserved in wax and due to the most likely change in composition because...

... in Brazil. Moreover, the latter reservoirs already have high CO 2 content in the gas phase. Interfacial phenomena between fluids and rock in low salinity brine/CO 2 environment still remain unclear, particularly the wettability behavior induced by the pH of the medium. In this study, coreflooding...

...Conclusion In addition to absolute permeability, relative permeability can also play a critical role in enhancing hydrocarbon production from hydraulically fractured wells, however, due to the small size of proppants, changing their wettability requires an efficient and at the same time...

... account for foam evolution in horizontal and vertical configurations. Comparison of performances is also conducted for several formulations differing by their foam performances in sandpack and by their wettability alteration properties. A preliminary test shows that co-injection of gas and liquid...

... Abstract Development of reliable models for hydrocarbon-in-place and water saturation estimation requires knowledge about wettability of mudrocks and the parameters (including rock properties and reservoir condition) affecting it. A significant volume fraction of organic-rich mudrocks...