Chemically enhanced water-alternating-gas injection for improved CO2 sweep efficiency and geological sequestration in CO2-EOR: Insights from physical experiments and molecular simulation

Chemically enhanced water-alternating-gas injection for improved CO2 sweep efficiency and geological sequestration in CO2-EOR: Insights from physical experiments and molecular simulation

Addressing gas channeling, limited sweep efficiency, and restricted CO2-oil miscibility in heterogeneous reservoirs during CO2-enhanced oil recovery (CO2-EOR) remains a critical challenge. Herein, a novel pressure-regulated, hydrophilic CO₂-responsive hydrogel-to-foam transition system is used to en...

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Bibliographic Details
Main Authors: Pengwei Fang, Zhengming Yang, Qun Zhang, Hongwei Yu, Fei Feng, Yidi Wan, Jiangfei Wei, Yuhao Mei, Meiwen Cao
Format: Article
Language:English
Published: Elsevier 2025-09-01
Series:Results in Engineering
Subjects:
Hydrogel-to-foam transition
Chemical-Assisted Water-Alternating-Gas technique
Oil recovery
Molecular dynamic simulation
Carbon capture
Utilization
Online Access:http://www.sciencedirect.com/science/article/pii/S2590123025023114
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