Optimization of W5 fault block surface-active polymer flooding scheme. (3rd March 2020)

• Record Type: Journal Article
• Authors: Zhang, Jicheng; Jiang, Tao; Fan, Jiale; Yan, Zhiming
• Is Part Of: Petroleum science and technology. Volume 38:Number 5(2020)
• Page Start: 472
• Page End: 477
• Publication Date: 2020-03-03
• Subjects: development of the field -- numerical simulation -- recovery rate -- scheme optimization -- surface-active polymers; Liquid fuels -- Periodicals; Petroleum -- Periodicals; 665.505
• DOI: 10.1080/10916466.2020.1767131
• Languages: English
• ISSNs: 1091-6466

Abstract

Abstract: According to the current situation of the W5 fault block, it is necessary to carry out the surface-active polymer flooding. By physical simulation, the optimal concentration is 1000 mg/L, the optimal slug size is 0.3PV, and the earlier the injection opportunity, the slower the injection rate, the higher the recovery rate. By numerical simulation, the recovery rate of the optimal scheme is 27.2%. Compared with the water flooding, the cumulative oil increase is 3.33 × 10 4 t, the enhanced oil recovery is 5.74%, the oil-enhancing amount of one ton surface-active polymers is 307.73 t/t, and the ratio of output to input is 16.30.