Enhanced Oil Recovery Using CO2 Flooding: Norne Field E-Segment Case Study
Published: 2020-02-14
Page: 239-251
Issue: 2019 - Volume 2 [Issue 3]
M. M. Iliya *
Department of Geology and Mining, Nasarawa State University, Keffi, Nigeria.
N. U. Okereke
Department of Petroleum Engineering, Federal University of Technology, Owerri, Nigeria.
H. O. Usman
Department of Geology and Mining, Nasarawa State University, Keffi, Nigeria.
*Author to whom correspondence should be addressed.
Abstract
Background: The Norne field is located 80 km north of the Heidrun field in the Norwegian Sea discovered in December 1991.
Aim: The feasibility of using CO2 flooding as a method of enhanced oil recovery in a segment of the Norne field was analysed.
Methods: A numerical simulation using a black oil simulator approach was taken. For this study, a synthetic reservoir model, with fluid and rock properties from Norne field E-Segment was used to test the effect of CO2 flooding on recovery factor.
Results: The key findings are as follows: (1) The oil recovery of the base case after 7 years of water flooding was 40% (2) The recovery factor obtained after 15 years of continuous CO2 injection was 32%.
Conclusion: This study indicates that there is a feasibility of carrying out CO2-EOR in the Norne field based on initial CO2-EOR screening and simulation.
Keywords: Simulation, CO2 flooding, Enhanced Oil Recovery (EOR), recovery factor.