توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱Simulation of CO2 Injection in a Sector Model of Iranian Oil Reservoir
اطلاعات انتشار: چهاردهمین کنگره ملی مهندسی شیمی ایران، سال
تعداد صفحات: ۲۳
There is a consensus among specialists that Carbon dioxide (CO2) flooding is an effective method of enhanced oil recovery. CO2 injection causes oil swelling, reduction in the oil viscosity, oilvaporization and improving oil displacement by miscibility. Iranian oil reservoirs are expected to undergo serious pressure decline in upcoming years. Abundance of CO2, its availability and environmental issues regarding this gas, makes it a promising injection gas to overcome suchchallenges. Because of technological complexity and financial requirements to initiate a gas flooding project, a comprehensive evaluation is necessary before any other thing.The present work is concerned with investigation of CO2 injection process in a sector of a Southwest Iranian oil reservoir, giving a special attention to phase behavior and amount of recoverable oil. Thus we use real rock and fluid properties for simulation. The main focus is onequation of state (EOS), modeling of experimental PVT data, determining MMP (minimummiscibility pressure) for different gas compositions using a slim tube model. Other aspects such as the effect of different completion patterns, CO2 injection rate, and injection pressure on oil recovery are covered. Recovery values obtained from different flooding scenarios are also compared. Finally, we inspect recovery performance in different gas flooding scenarios and natural depletion. The simulation results indicate that CO2 injection to the studied sector of the reservoir causes a 12.9% increase in recovery factor in comparison with the natural depletion of this sector<\div>

۲CO2 Injection as a Non hydrocarbon Gas injection in a Sector Model of an Iranian Oil Reservoir
نویسنده(ها): ، ،
اطلاعات انتشار: دومین همایش ملی نفت، گاز و پتروشیمی، سال
تعداد صفحات: ۲۳
There is a consensus among specialists that Carbon dioxide (CO2) flooding is an effective method of enhanced oil recovery. CO2 injection causes oil swelling, reduction in the oil viscosity, oil vaporization and improving oil displacement by miscibility. Iranian oil reservoirs are expected to undergo serious pressure decline in upcoming years. Abundance of CO2, its availability and environmental issues regarding this gas, makes it a promising injection gas to overcome such challenges. Because of technological complexity and financial requirements to initiate a gas flooding project, a comprehensive evaluation is necessary before any other thing.The present work is concerned with investigation of CO2 injection process in a sector of a Southwest Iranian oil reservoir, giving a special attention to phase behavior and amount of recoverable oil. Thus we use real rock and fluid properties for simulation. The main focus is on equation of state (EOS), modeling of experimental PVT data, determining MMP (minimum miscibility pressure) for different gas compositions using a slim tube model. Other aspects such as the effect of different completion patterns, CO2 injection rate, and injection pressure on oil recovery are covered. Recovery values obtained from different flooding scenarios are also compared. Finally, we inspect recovery performance in different gas flooding scenarios and natural depletion.The simulation results indicate that CO2 injection to the studied sector of the reservoir causes a 12.9% increase in recovery factor in comparison with the natural depletion of this sector<\div>

۳Investigation of different Surfactants on Wettability of Carbonate rocks
اطلاعات انتشار: دومین همایش ملی نفت، گاز و پتروشیمی، سال
تعداد صفحات: ۶
Utilization of surfactants is one of the available accesses for wettability alteration of reservoir rock, from oil wet into water wet. So that studying of wettability alteration mechanism using surfactants has been emphasized by recent researchers. In this work, it is focused on presenting a process mechanism which has a direct effect on surfactants behavior in oil field usage, by using of analysis techniques such as Zeta Potential, TGA1, and contact angel measurement. The results haveshown that between useable surfactants, anionic surfactants have the least effect on wettabilityalteration, because of the generated repulsion between the anion of the fatty acid carboxylic group and their anionic part. Where in case of cationic surfactants, because of the appointment of electrostatic attraction and ion–pair formation, zeta potential is changed and surface is tended to water wet. Theseresults are completely coincided with contact angle measurement tests and zeta potential and TGA tests<\div>
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