The Evaluation of an Immiscible-CO_2 Enhanced Oil Recovery Technique for Heavy Crude Oil Reservoirs

摘要

Sequestration of CO_2 in enhanced oil recovery applications has been widely recognized as one of the favorite techniques for reducing emissions of CO_2 into the atmosphere in response to global climate change. This technique provides lower costs for CO_2 sequestration by means of higher incremental oil recoveries. There are some key parameters, when considering a field for the CO_2 displacement. Oil reservoirs are screened out according to oil gravity, reservoir temperature and pressure, minimum miscibility pressure, and remaining oil saturation. Throughout this study, the CO_2-Prophet tool is utilized in order to assess suitability of Ban Raman and Camurlu crude oil fields for CO_2-enhanced oil recovery application. In the second part of the study, the Kinder Morgan Scoping economic model is used to see economic consequences of the project. Although the °APl gravity and minimum miscibility pressure for these fields do not meet the required criteria for the miscible flood, due to importance of CO_2 sequestration and absence of appropriate fields for CO_2-enhanced oil recovery implementation in Turkey, these fields can be considered for CO_2-enhanced oil recovery applications as long as the project is economically feasible.