Hoang, L., Nguyen, M. Q., Pham , T. G., Phan, V. A., Le, T. T. H., Cu , T. V. N., Tran, T. P., Dinh , D. H. and Le , T. H. (2021) “Research on evaluating, selecting and manufacturing the VPI SP chemical product for conducting field test to enhance oil recovery coefficient of oil fields in Cuu Long basin, offshore Vietnam”, Petrovietnam Journal, 110, pp. 45 - 54. doi: 10.47800/PVJ.2021.11-02.