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Solution behavior of water‐soluble poly(acrylamide‐ co ‐sulfobetaine) with intensive antisalt performance as an enhanced oil‐recovery chemical
Author(s) -
Zhang Qin,
Gou Shaohua,
Zhao Lei,
Fei Yumei,
Zhou Lihua,
Li Shiwei,
Wu Yuanpeng,
Guo Qipeng
Publication year - 2018
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.46235
Subject(s) - copolymer , sulfonate , acrylamide , brine , salt (chemistry) , chemical engineering , enhanced oil recovery , propane , viscosity , chemistry , polymer chemistry , materials science , organic chemistry , polymer , sodium , composite material , engineering
In the process of oilfield development, salt tolerance is an important property for enhanced oil‐recovery (EOR) chemicals. In this study, we synthesized two acrylamide‐based sulfobetaine copolymers containing 2‐hydroxy‐3‐[(3‐methacrylamidopropyl)dimethylammonio]propane sulfonate (SHPP) or 3‐(4‐acry‐loyl‐1‐methyl‐piperazinio)‐2‐hydroxypropane sulfonate (SHMP). The interactions between these two copolymers and inorganic salts were compared, and the apparent viscosity (η app ) behaviors of copolymer–salt solutions at different shear rates and temperatures were investigated. We found that the η app of PAPP and PAMP showed intensive antisalt performance, exhibiting an excellent antipolyelectrolyte effect. The η app retention value of 30,000 mg/L PAMP in brine was 86.47 mPa s at 510 s −1 , and when the temperature was increased to 90 °C, it was 99.73 mPa s; this was better than that of PAPP under the same conditions. Therefore, PAMP was more applicable as an EOR chemical that have outstanding salt tolerance and temperature resistance. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135 , 46235