..., gas composition, water saturation, oil saturation, and rock permeability. Surfactant adsorption on the rock and its partition in the oil phase was also measured. These results were used to estimate parameters to be entered into foam models available in commercial reservoir simulators. Other fields...

... adsorption, mobility reduction during polymer injection, permeability reduction and gelation time. These parameters can be utilized in simulation work to evaluate gel treatment efficiency in a pilot. sedimentary rock waterflooding polymer concentration system 4 geologist carbonate rock rock type...

... ) – it has been observed that "polymer retention is one of the key factors in determining the economic viability of a polymer flood" ( Sorbie 1991 ). As such, the adsorption of polyacrylamide polymers is the key focus of this publication. In sandstone systems, the negatively charged groups on the polymer...

... retardation of foam generation/propagation due to high minimum pressure gradient (MPG) and surfactant adsorption. This study aims to minimize the transient foam state and optimize the foam process for maximizing the CO2 utilization capacity. The design of a foam process mainly focuses on the foam behavior...

... implementation adsorption spe annual technical conference technology stability workflow foam journal fracture Introduction Gas flooding has been a well-established method in the field of enhanced oil recovery (EOR) for more than five decades. This technique involves injection of various gases...

... practical implications for the industry by improving oil recovery efficiency and minimizing environmental impact. geologist stearic acid hswf adsorption waterflooding flooding nacl oil recovery sedimentary rock rock type lswf wettability concentration low salinity water flooding geology...

... for synergism. We also conducted static adsorption and spontaneous imbibition tests to examine the effects of binary surfactants on oil recovery. We observed that the nonionic surfactant reduced the adsorption of the anionic and cationic surfactants by 53% and 28%, respectively, and increased the recovery...

... Abstract Multicomponent gas transport in nanoporous adsorption media, such as organic-rich shales, is influenced by various mechanisms of mass transport and storage, posing challenges to understanding fluid transport in these porous media. We present a predictive diffusion-based model...

... Abstract Clay particles can irreversibly adsorb polymers, limiting the availability of flowing polymers to sweep the reservoir. The adsorption in the near wellbore region can also lead to reduced injectivity. This study investigates the potential of sacrificial agents, specifically sodium...

... sedimentary rock carbonate rock mineral peg-h injection fluid dynamics structural geology salt tectonics enhanced recovery surfactant geologist waterflooding rock type reservoir characterization adsorption concentration hydrophilicity interaction reduction oil recovery journal synthetic...

... relations between mineralogy and fluid chemistry as well as elucidate the organization of mineral-adsorbent-fluid interfaces within reservoirs. geochemical characterization flow assurance wax inhibition complex reservoir scale inhibition adsorption reservoir characterization hydrate remediation...

... Abstract Phase equilibrium of shale fluid is highly disturbed due to liquid adsorption and capillary pressure in densely-developed organic nanopores. And the miscibility phenomenon between gas and oil is also changed during gas injection for enhanced oil recovery (EOR). Therefore...

... adsorption waterflooding surface facility concept asp pilot implementation polymer flood reservoir simulation viscosity pilot performance surfactant adsorption consideration mangala field injection modeling study asset and portfolio management upstream oil & gas facility concept...

... were investigated. The polymers consisted of AMD-AA co-polymers, AMD-ATBS co-polymers and AMD-AA-ATBS ter-polymers. The polymers were studied both in their original state as they would be during the injection (initial viscosity, initial adsorption and in-situ rheology) as well as in the state which...

... losses on reservoir minerals in the form of adsorption. Surfactant formulations designed in this work are unique and provide high temperature stability (above 70 °C and in some cases up to 120 °C) and high salinity tolerance (> 12 % TDS and up to 22% TDS in some low temperature cases). The field...

... temperature conditions, where CO 2 remained in the supercritical state. The performance of the amphoteric surfactant was compared with another good foamer on the basis of foam stability and strength, both in bulk and in porous media. Dynamic adsorption tests were conducted to compare the adsorption...

... obtained by using S a/c . The adsorption inhibitor (AI) was adopted to reduce the adsorption because of the high clay contained in the natural core. Dynamic adsorption was about 0.30 mg/g with addition of AI, as well as IFT kept almost unchanged before and after adsorption. In order to reduce...

... from laboratory testing, combined with reservoir-scale simulations and field trial surveillance, enabled the reaction and adsorption characteristics of the polymer to be estimated. Simulations of the injection pressure demonstrate that this polymer has significantly better injectivity under matrix...

.... The formulation recovers a similar amount of oil in reservoir rock in the swept zone. Overall recovery in reservoir rock is lower than outcrop sandstone due to greater heterogeneity, which causes bypassing of crude oil. IFT viscosity surfactant phase environment chemical flooding methods adsorption...

... transport and adsorption. The proposed model can be used to provide meaningful values of the model parameters that were able to explain the physical mechanisms behind the PEF floods and to guide future experimental design to further constraint the choices of model parameters. This work provided new...