TY - JOUR
T1 - Synthesis of amphiphilic Janus SiO2/styrene butyl acrylate polymer microspheres and their application in oil recovery
AU - Li, Xinru
AU - Gao, Dangge
AU - Liu, Maochang
AU - Zheng, Lijun
AU - Li, Pengyu
AU - Lyu, Bin
N1 - Publisher Copyright:
© 2023
PY - 2023/10/20
Y1 - 2023/10/20
N2 - We report the design and synthesis of two kinds of amphiphilic Janus SiO2 nanoparticles, including polyacrylic acid/polystyrene (PAA/PS) Janus SiO2 and polyacrylic acid/polymethylmethacrylate (PAA/PMMA) Janus SiO2. The amphiphilic Janus SiO2 nanoparticles can effectively stabilize polystyrene butyl acrylate (P(St-BA)) composite microspheres, forming low-cost oil displacing systems to improve the oil recovery of heterogeneous and low-permeability reservoirs. Among them, the PAA/PS Janus SiO2 stabilized P(St-BA) are demonstrated with good injection, migration, and plugging performance, as well as high temperature and salt resistance. These advantages enable the system an oil recovery increment of 32%. In addition, the microspheres also present good enhanced oil recovery potential in heterogeneous reservoirs, especially for cores with a permeability ratio of 2.0. In principle, the oil displacement of this system is achieved by the synergic effect of amphiphilic Janus SiO2 nanoparticles and composite microspheres. This work thus provides a promising method for high-performance yet low-cost oil recovery improvement.
AB - We report the design and synthesis of two kinds of amphiphilic Janus SiO2 nanoparticles, including polyacrylic acid/polystyrene (PAA/PS) Janus SiO2 and polyacrylic acid/polymethylmethacrylate (PAA/PMMA) Janus SiO2. The amphiphilic Janus SiO2 nanoparticles can effectively stabilize polystyrene butyl acrylate (P(St-BA)) composite microspheres, forming low-cost oil displacing systems to improve the oil recovery of heterogeneous and low-permeability reservoirs. Among them, the PAA/PS Janus SiO2 stabilized P(St-BA) are demonstrated with good injection, migration, and plugging performance, as well as high temperature and salt resistance. These advantages enable the system an oil recovery increment of 32%. In addition, the microspheres also present good enhanced oil recovery potential in heterogeneous reservoirs, especially for cores with a permeability ratio of 2.0. In principle, the oil displacement of this system is achieved by the synergic effect of amphiphilic Janus SiO2 nanoparticles and composite microspheres. This work thus provides a promising method for high-performance yet low-cost oil recovery improvement.
KW - Amphiphilic Janus SiO
KW - Composite microspheres
KW - EOR
KW - Oil displacement
KW - Polymerization
UR - https://www.scopus.com/pages/publications/85165539277
U2 - 10.1016/j.colsurfa.2023.132076
DO - 10.1016/j.colsurfa.2023.132076
M3 - 文章
AN - SCOPUS:85165539277
SN - 0927-7757
VL - 675
JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects
JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects
M1 - 132076
ER -