English

Abstract

Anthropological carbon (iv) oxide (CO2) emissions to the atmosphere are identified as amajor driver for the global warming effect. Major CO2 emissions sources are locatedwithin power and industrial sectors where fossil fuels are consumed to generate energy.With the anticipated escalation of global energy demand, CO2 emissions are also expectedto grow. Therefore, reducing CO2 emissions to atmosphere is a fatal issue worldwide. Capturing CO2 from emissions sources and injected into safe geological places for storageshows a practical mitigation strategy through CO2 capture and storage (CCS) practices. In CCS projects, several options are available for CO2 storage such as subsurface aquifers,coalbed bed methane formations, or depleted oil and gas reservoirs. Alternatively to thesestorage places, CO2 can be utilized to enhance oil production from mature oil reservoirs. Utilization of CO2 in enhanced oil recovery techniques (EOR) is a well known practice in oilindustry. Therefore, synchronizing between the objectives of storing CO2 and enhancing oilproduction to meet global demand can be achieved through CO2-EOR projects. The giantoil reservoirs in the Middle East represent potential places for CO2-EOR projects. In thispaper, oil reservoirs located in the Middle East are selected to evaluate the potential of CO2-EOR projects in the region. These reservoirs were subjected to CO2-EOR screeningwhere the fluid and rock properties are compared with a well known criteria. Furthermore, an analytical model is used to predict the performance of CO2-EOR inthese reservoirs. The results showed that implementing CO2-EOR practices wouldenhance the oil recovery while storing a considerable amount of CO2 in these reservoirs. Key words: Carbon (iv) oxide enhanced oil recovery (CO2-EOR), capture and storage(CCS), green house gases (GHG), Middle East.