Studi Terintegrasi Kelayakan Proses Injeksi Gas CO2 untuk Enhanced Oil Recovery (EOR) di Lapangan Minyak

Abstract

CO₂ gas injection is once of recommended Enhanced Oil Recovery (EOR) methods by injecting CO₂ through reservoir pore after reached its residual saturation, since CO₂ dissolved easily in oil phase due to oil extraction as confirmed by many other researcher in pertaining field study. An integrated system is urgently required for assessing CO₂-EOR feasibility study, covering multi disciplinary aspects as follows: geology, geophysics, reservoir, production, process and economic. Hence those systems must be reliable in suggesting final decision for feasibility study of CO₂-EOR operation program, applicable either for pilot scale or full scale. This paper will proposing integrated system evaluation, which has following features:  (1) Estimate fraction of dissolved CO₂,(2) Estimate viscosity reduction, (3) Estimate future of oil productivity index resulted, (4) Estimate forecast of incremental oil recovery, (6) Estimate surface facilities equipment design, (7) Evaluate economical aspects, and (8) Generate final decision for feasibility of CO₂-EOR operation program. Finally, as the main objective of this program, those system will present a picture of essential reason why we need to promote or reject CO₂-EOR plan program, also some recommendations will presented in case of CO₂-EOR plan does not perform from what it is supposed to be.