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- W4385495575 abstract "ABSTRACTDespite the widespread use of renewable and green energy, the demand for fossil fuels is also rising due to increasing global energy demand. Therefore, unconventional solutions, with safe environmental impacts, are being pursued to solve this problem. Instead of getting rid of the exhaust gases in the surroundings, one solution might be to inject them with the oxidizer into the oil reservoir, to initiate an in-situ combustion (ISC) process to enhance oil recovery. A numerical study of a 1-D combustion tube has been conducted and validated to simulate the in-situ combustion process using enriched air as the oxidizer. The effects of injecting exhaust gases with the oxidizer are studied. Different ratios of oxygen to nitrogen are used in the enriched air as well as different ratios of exhaust gases. If enriched air which is mostly oxygen, i.e. 95% O2 +5%N2, is used, it is found that replacing 10% of the enriched air with exhaust gases can increase the oil recovery factor (ORF) from 94.7% to 94.9% and replacing 20% can improve oil recovery to 95.1%. For another enriched air, 60% O2 +30% N2, it is found that replacing portions of the enriched air with exhaust gases will reduce the oil recovery factor. In all previous cases, it was found that replacing the proportions of enriched air with exhaust gases reduces the amount of fuel burned and increases hydrogen production.KEYWORDS: In-situ combustionoil recovery factorexhaust gases Disclosure statementNo potential conflict of interest was reported by the author(s).Supplementary dataSupplemental data for this article can be accessed online at https://doi.org/10.1080/00102202.2023.2239480Nomenclature and abbreviations Cs=Total solid concentrationEG=Exhaust gasesEA=Enriched airhj=The enthalpy of phase jh*j=The enthalpy of phase j at injection or productionk=Permeabilitykr=Relative permeabilityORF=Oil recovery factorqhc=The heat loss source/sink term.rik=The rate of kth reactionSj=The saturation of phase j and xij is mole fraction of component i in phase j.T=Absolute temperatureU=The internal energies as a function of temperature and phase compositionUr=Energy per rock volumeu=Velocity componentVj=Velocitywi=The well productivity indexxij=Mole fraction of component i in phase jz=Gridblock thicknessρ =Fluid phase densityλ=Thermal conductivity of the formationπ=Number of phasesθ j=Mass production rate per unit volumeφ =Porosityμ j=Viscosity of the fluid" @default.
- W4385495575 created "2023-08-03" @default.
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- W4385495575 date "2023-08-01" @default.
- W4385495575 modified "2023-10-15" @default.
- W4385495575 title "Combination Effect of in-Situ Combustion and Exhaust Gases Recirculation on 1D Combustion Tube: Numerical Approach" @default.
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- W4385495575 doi "https://doi.org/10.1080/00102202.2023.2239480" @default.
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