... after it, resulting in a lower oil recovery. Meanwhile, the flow channels get thinner, with a larger relative sweep area and lower displacement efficiency at the breakthrough, intensifying the fingering phenomenon. With different water (displacing phase) viscosities from 1, 10, 100, to 1000 mPa·s...

... reservoir characterization experiment imbibition recovery imbibition experiment structural geology subsurface storage imbibition recovery saturation journal investigation surfactant complex reservoir hydraulic fracturing mudstone co 2 efficiency displacement efficiency petroleum science...

... co 2 miscible displacement miscibility displacement efficiency literature equation of state pvt measurement fluid dynamics efficiency composition injection flow in porous media waterflooding reserves evaluation oil recovery displacement numerical simulation sweep efficiency...

... as capillary desaturation curve (CDC). Various CDCs lead to a basic conclusion of using surfactant to reduce interfacial to ultra-low to get a minimum ROS and maximum displacement efficiency. However, after a deep analysis of Ca and recent new experimental observations, the traditional definition of Ca...

... of biodegradation from a reservoir fluid point of view. Drilling costs will be higher at deeper reservoirs, but the benefit of improved displacement efficiency may compensate for these higher costs. Conclusions and Recommendations Biodegradation occurs in the Frio reservoirs as is shown in the GC...

... society of petroleum engineers displacement efficiency The comparison of oil production from hydraulically fractured wells to non-hydraulically fractured ones in Fig. 1 ( EIA, 2016 ) underscores the significance of well stimulation and completions to the overall growth in oil production...

... is progressively enriched with oil components to achieve miscibility with the in-situ oil. Their results showed that the local displacement efficiency of a CO 2 flood is highly dependent on the composition path. Holm and Josendal (1974 ) discussed and summarized the various mechanisms occurring in CO 2 -oil...

...)that were tested allowing us to expand the range of optimum current densities and acid concentration for the EK LCA-IOR process to meet the objectives of this study in maximizing displacement efficiency and permeability enhancement. Findings confirm EK LCA-IOR application resulted in additional 15–35...

... of dispersion or as defined by slim-tube experiments as the "knee" in therecovery curve with pressure where displacement efficiency is greater than 90%. There are currently no analytical methods to estimate the MMP for multicomponent mixtures exhibiting three hydrocarbon phases. Also, there are no reliable...

... geometry was digitised using Scanning Electron Microscopy (SEM). The digitised model was used to perform Computational Fluid Dynamics Simulations (CFD) of the displacement processes. The displacement efficiencies and displacement patterns of the CFD simulations using water, polymer solutions, and polymer...

.... optimized viscosity oil recovery increment viscosity flooding chemical flooding methods surfactant capillary number formulation reservoir upstream oil & gas sp flooding injection pressure polymer flooding efficiency core flooding test displacement efficiency sweep efficiency enhanced...

... and the oil/water viscosity ratio (which is a function of temperature, pressure and the composition of the liquid hydrocarbon phase), the purported dependence of S orw on temperature is a topic of continuing controversy. The term displacement efficiency is defined here as the percentage of the initial oil...

... achieve high displacement efficiency of more than 90% when three hydrocarbon-phases coexist during the displacement. However, the mechanism for the high displacement efficiency is uncertain because the complex interaction of phase behavior with flow during the displacement is not fully understood...

.... All have gotten high displacement efficiency which according with the laboratory results. Third stage is industrial pilot tests stage. Daqing implemented the development and production of alkyl benzene sulfonate (adapt to strong base and weak base) with independent innovation. Since year 2000, several...

... Abstract Experimental results indicate that the displacement efficiency (De) after flooding by driving fluids with and without elastic characteristics is different at the same viscosity, (i.e. at the same pressure gradient). Macro forces cannot explain the difference of the De by different...

... that the displacement efficiency of the compound solution composed of polymers and surfactants (0.1% concentration) is higher than that of alkali/polymer/surfactant (ASP) solution (surfactant concentration 0.3%) used in the oil field now, the total recovery can reach 70 % OOIP or higher. It is shown that the IFT...

... of laboratory experiments have been conducted to study the oxidation kinetics of air/air foam with oil and the blocking and displacement efficiency of air foams in different oil sands. Reservoir simulation has also been carried out for predicting the reservoir response to air foam injection and optimizing...

... saturation experimental result low interfacial tension capillary number reservoir experimental data Artificial Intelligence water saturation relative permeability flooding relative permeability curve interfacial tension operation exhibition displacement efficiency experiment permeability...

... surfactant enhanced recovery Upstream Oil & Gas Brine water phase heavy oil Oil Recovery formula dyne cm dispersion interfacial tension efficiency slug injection co 3 sandpack spe 99791 ift displacement efficiency Introduction Emulsification of crude oil in displacing water...

... dynamics flow in porous media kriging representation reservoir simulation symposium prediction displacement efficiency Introduction The overall goal of our research is to improve the accuracy and efficiency of the streamline method in simulating compositional problems such as those that occur...