... interaction hydraulic fracturing fluid marcellus shale maturity wettability alteration compound reaction kerogen wettability heidari 2019 Abstract The recent increase in unconventional oil and gas exploration and production has promoted active research on hydraulic fracturing, but the impact...

... 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...

... treatments can increase the relative permeability to condensate liquid by factors of 1.89 and 1.22 respectively, due to the wettability alteration mechanism. Capillary pressure calculations show that GS can reduce the capillary pressure by around 40% on average, while TCF leads to a 70% reduction...

... simulator equilibrated gas condensate saturation wettability alteration experimental data Introduction Conventional gas resources are at their last stages of production and to fulfill the worldwide energy demand, the production from tight unconventional resources have gained wide attention. Gas...

... Abstract The potential of tuned-composition waterflooding to enhance oil recovery from carbonate reservoirs has been widely investigated in the literature. The consensus is that wettability alteration occurs because of the electrostatic interactions between the carbonate rock surface...

... relatively homogenous cores. A shut-in phase after the surfactant injection resulted in an additional oil recovery, which suggests enough time should be allowed while using surfactants for wettability alteration. The core with a higher extent of heterogeneity produced lower oil recovery to waterflood...

... 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...

... 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...

... demonstrates that there is not a "one size fits all" surfactant design. complex reservoir reservoir temperature shale gas np-12 cloud computing oil shale experiment surfactant molecule cloud point surfactant wettability alteration recovery factor unconventional resource technology conference...

... that the recovery of oil in lower permeability significantly improved when applying a cationic surfactant compared to a non-ionic surfactant. Standnes and Austad (2003) showed that when the cationic surfactant concentration is lower than the critical micelle concentration (CMC), no wettability alteration process...

... 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...

... concentration experiment zeta potential carboxylic acid enhanced recovery upstream oil & gas lara orozco contact angle scm adsorbed carboxylic acid equilibrium constant reaction complexation reaction lsw wettability alteration oil recovery glycine speciation experimental data Tuning...

... at the nanoscale, contributed to wettability alteration from oil wet to intermediate wet as brine salinity reduced and in the presence of Mg 2+ ions on the limestone surface. Calcite dissolution accompanied with a spike in brine pH contributed to the reduced electrostatic bond attraction and impacted...

... substrate nanoparticle enhanced oil recovery wettability alteration nacl oil recovery afb adhesion energy dispersion nanofluid concentration interaction nanofluid presented nanofluid eor Introduction In the global energy industry, billions of oil barrels have been produced over many...

... in place is recovered from the tertiary alternating injection of NPs dispersed in LSW and surfactant. The difference in the results is attributed to the wettability alteration by the NPs beyond the limit of the LSW and the reduction in the IFT with/without surfactant. The interpretation of the results...

... the strength of adsorption, which in turn impacts the magnitude of wettability alteration during LSWF. Further, partitioning of SACs in brine is observed to influence the type of interactions taking place in the rock-oil-brine system, where carboxylate salts (soaps) generated in-situ are detected only...

... 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...

... for wettability alterations using contact angles. Surfactants with lower IFT and lower contact angles were selected for spontaneous imbibition. In spontaneous imbibition experiments, some formulations produced a significant amount of oil compared to the control samples without any surfactants. Two cationic...

... Single-phase and oil recovery corefloods, involving wettability alteration in carbonate rocks, reported in the literature were simulated using the model described above. Brine compositions and details of the simulations are given in Tables 2 and 3 , respectively. Simulation S1 was conducted...