... composition coefficient indicator adsorption pilot project hydrodynamic model filtration experiment adaptation Introduction In a previously published work (Trushin et al., SPE 201830 , 2020 ), the procedure for selecting surfactant-polymer compositions to increase the oil recovery factor from...

... without loss of effectiveness. flow in porous media breakthrough calculation numerical simulation chemical flooding methods upstream oil & gas adsorption viscosity enhanced recovery fluid dynamics concentration gvb technology tfe model main slug experiment specific polymer...

... Adsorbing on the surface of the rock matrix, alkali reduces the surfactant adsorption ( Krumrine et al., 1982 ). In addition, alkali can interact with acidic components of oil, causing the formation of natural surfactants (soaps), which act in the same manner as synthetic ones and contribute...

... Abstract The application of chemical enhanced oil recovery methods is based mainly on data from experiments. Determining the adsorption constants without destroying the sample remains a relevant problem. It is necessary for accurate data. The determination of filtration parameters of high...

... reservoirs. The optimum operating concentrations were selected to avoid the formation of a Winsor III microemulsion, which can lead to plugging of narrow channels and fluid flow blockage in the formation. Values of static adsorption onto crushed rock were also evaluated. The most effective composition...

... of the pilot site. chemical flooding methods polymer static adsorption injection well surfactant enhanced recovery adsorption efficiency residual oil saturation surfactant-polymer flooding permeability modeling & simulation displacement viscosity boundary reservoir upstream oil...

... Abstract Many factors affect the efficiency of polymer flooding, but the key is polymer adsorption on the rock. The analysis of the main methods of experimental elaboration of uncertainties associated with the estimation of adsorption on micromodels is carried out in this article. As part...

...). Then, the static and dynamic adsorption were determined using UV-spectroscopy. Finally, regular filtration experiments on a laboratory scale and 4D X-ray tomography core flooding experiments were carried out at reservoir conditions to analyze the microscopic/macroscopic displacement mechanism and efficiency...

... the challenges, difficulties, applied approaches, results and experience obtained in reservoir simulation of polymer flooding. reservoir characterization enhanced recovery production control reservoir surveillance production monitoring waterflooding adsorption reservoir simulation oil production...

... and the filtration coefficient during suspension injection were determined, which are in satisfactory agreement with the theories of polymer slug filtration and deep bed migration. flow in porous media reservoir characterization waterflooding chemical flooding methods upstream oil & gas adsorption...

... concentration method experiment slug enhanced recovery concentration reagent solution reagent polymer viscosity tracer chemical flooding methods core sample reservoir retention surfactant adsorption porous media desorption salinity determination injection Introduction Polymer...

... sample and evaluation of surfactant adsorption on rock surface were carried out with the best compositions. The results of the study show that the colloidal systems, represented by mixtures of anionic and non-ionic surfactants, have the best performance. The main components of these surfactant...

... was measured, as well as adsorption properties. The target values of interfacial tension were set in the range around 10 -2 , and not higher than 10 -1 mN/m. Filtration experiments on composite core model were conducted to evaluate the efficnency of selected composition. Development and tuning of linear...

... 3.1 4.7 6.15 710 Table 4 Chemical properties of the crude oil. AN (mg KOH/g) BN (mg KOH/g) Density, 20°C (g/cm 3 ) Viscosity (CP) T-Oil 0.12 1.78 0.846 17.6 Table 5 Composition of brines used in adsorption/desorption studies. Brine solutions Q (mM) Ion...

..., porosity-permiability dependence, HC adsorption, OM and petroleum cracking reaction, volume of organic porosity and its impact on Bzh. fm. potential were considered in appropriate way. Characteristics of the Bazhenov Formation Hydrocarbon System The Bzh. fm. is a unique geological play, composed...

... remediation Fluid Dynamics scale remediation productivity index inhibitor protection suction pipe squeeze treatment near-wellbore zone adsorption scale inhibitor bottomhole scale formation Production Chemistry scale inhibition remediation of hydrates concentration composition reservoir...

... Abstract To minimize risks related to ASP flooding at West Salym field, experiments have to be carried out to study surfactant adsorption in the formation. Initially one should develop a necessary and sufficient list of experiments, as well as their conditions and interpretation of results...

... evaluation injection sensitivity analysis enhanced recovery adsorption scenario recovery producer surfactant oil recovery The models were developed for the Department of Energy and for the National Petroleum Council (NPC) by Scientific Software-Intercomp. The Enhanced Oil Recovery (EOR...