The Potential of CO2 Injection on Enhanced Oil Recovery Method for Oil Fields in Indonesia

Abstract

Indonesia is one of the countries that have large oil and gas reserves. So far, primary and secondary oil recovery can only produce around 20%-40% of reservoir reserves in Indonesia, so there is a large amount of oil potentially remaining in reservoirs. One of the Enhanced Oil Recovery (EOR) methods is CO2 injection because there are many sources of CO2 gas in oil fields in Indonesia. The purpose of this study was to determine the performance of the CO2 injection mechanism method, which can make hydrocarbon fluid miscibility and increase the recovery factor of oil wells. The methodology in this study is a literature review that discusses oil field data in Indonesia. Screening criteria use several parameters, including reservoir pressure and minimum miscibility pressure. Field data is then calculated and predicted using simulations. From the results of the simulation, calculations carried out there are six oil field areas that have the potential for CO2 injection in an effort to improve oil recovery, namely in the East Kalimantan, West Java, and South Sumatra areas, with recovery factors ranging from 50% - 90% of the original oil in place (OOIP). ). CO2 flooding has a good potential to be implemented in oil fields in Indonesia because there are many sources of CO2, easy to obtain, very good for increasing production rates in reservoirs with heavy and light oil content, and can reduce the results of environmental pollution from gas emissions.