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Molecular simulation-based surfactant screening and its performance evaluation in CO2 flooding

delete2026-08-10
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OA
AI
M
Ming Gao
Z
Zhen-zhen Dong
C
Chenhong Guo
T
Tong Hou
W
Wen-feng Lv
W
Wan-lu Liu
Y
Yi-ming Xu
W
Wei Wang
Y
Yu-jiang Liu
W
Wei-rong Li *
K
Ke-ze Lin
DOI:10.1016/j.jcou.2026.103507delete
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Abstract

Abstract

En 中文
• A molecular dynamics framework is established to screen CO₂-philic surfactants and predict MMP reduction. • FADG exhibits the highest MMP reduction (16.79%) and improves displacement efficiency by 7.094% under near-miscible conditions. • Surfactants enhance miscibility via interfacial adsorption that weakens oil cohesion and strengthens CO₂–oil affinity. • An optimal FADG concentration (∼0.966 wt%) is identified, beyond which self-aggregation limits further recovery gain.
Keywords:
CAE
,
Oil-soluble liquid surfactant
EO
,
Ethylene oxide
FADG
,
Fully acetylated dodecyl glucoside ester
IFT
,
Interfacial tension
LJ
,
Lennard–Jones
MMP
,
Minimum miscibility pressure
NEMD
,
Non-equilibrium molecular dynamics
OPLS-AA
,
Optimized potentials for liquid simulations – all atom
PO
,
Propylene oxide
RDF
,
Radial distribution function
ScCO₂
,
Supercritical carbon dioxide
VIT
,
Vanishing interfacial tension
Surfactant-induced MMP reduction
Molecular-scale oil displacement
Miscibility behavior
Molecular dynamics simulation
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Journal

Journal of CO2 Utilization cover
Journal of CO2 Utilization
IF:
8.4
Papers:
3.1K
Citations:
1.9W

Organization

X
Xi'an Shiyou University
Scholars:
740
Papers: 236
Citations: 1.7K
C
China University of Petroleum (Beijing)
Scholars:
1.5K
Papers: 429
Citations: 0
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