E3S Web Conf.
Volume 213, 20202nd International Conference on Applied Chemistry and Industrial Catalysis (ACIC 2020)
|Number of page(s)||5|
|Section||Industrial Catalysis and Chemical Substance R&D and Application|
|Published online||01 December 2020|
Nuclear Magnetic Resonance Evaluation Study for Effect of Foam flooding in Heterogeneous Cores
School of Mechanics and Engineering Science, Shanghai University, Shanghai, 200072, China.
2 Suzhou Testniumag Corporation Co. Ltd., Suzhou, Jiangsu Province, 215000, China
* Corresponding author’s e-mail: firstname.lastname@example.org
Foam flooding demonstrated the ability to solve the viscous fingering problem of gas flooding and increase the sweep efficiency in enhancing oil recovery. It is commonly used in development of heterogeneous reservoirs. While the characteristics of fluid migration in pores and between layers were still unclear. In this paper, Dynamic change of oil and water with different foam quality was tested during foam flooding by NMR method. Oil displacement effect of water flooding and foam flooding was compared. The results showed the foam quality affected the foam stability and profile control effect. Compared with water flooding, the foam could increase the recovery rate of the low-permeability layer, and the foam system with high stability had a high sweep efficiency and a high oil displacement efficiency in the heterogeneous cores.
© The Authors, published by EDP Sciences, 2020
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