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A nano‐Fe 3 O 4 material coated with AM / AMPS copolymer for viscosity enhancement at harsh reservoir conditions
Author(s) -
Qin Wenlong,
Li Ruixuan,
Li Hanxi,
Jiang Guanfeng,
Qin Guowei,
Wang Yang,
Yang Jiang
Publication year - 2021
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.50601
Subject(s) - polymer , copolymer , materials science , chemical engineering , enhanced oil recovery , polymer chemistry , rheology , viscosity , emulsion polymerization , apparent viscosity , polymerization , composite material , engineering
A Fe 3 O 4 nonaparticles coated with acrylamide/2‐acrylamido‐2‐methyl‐1‐propanesulfonic acid copolymer(Fe 3 O 4 ‐Polymer NPs) was synthesized by emulsion polymerization. The structure of Fe 3 O 4 ‐Polymer NPs was then characterized by infrared spectroscopy, thermo‐gravimetric analysis, and scanning electron microscopy. Meanwhile, the rheological properties of Fe 3 O 4 ‐Polymer NPs solution were systematically studied. The results showed that when dosage of hydrophobic Fe 3 O 4 ‐Oleic NPs is 10%, the synthesized Fe 3 O 4 ‐Polymer NPs was with the best viscosity enhancement performance, and the maximum saturation magnetization could reach to 20.0 emu/g. The apparent viscosity value of 5000 mg/L magnetic nano‐composite solution was 154.6 mPa·s at 30°C. It shows strong viscosity enhancement ability and good temperature performance. Hence, it has great application potential in well stimulation of medium and high temperature oil and gas reservoirs.