Cyclodextrin and methacrylic acid octyl phenols poly(ethylene oxide) ester‐induced synergistic effect in a novel poly(AM‐co‐A‐β‐CD‐co‐AE) polymer

Owing to superior properties such as temperature resistance and salt tolerance etc., modified polyacrylamide (PAM) as one of the main injected polymers has been widely investigated to enhance oil production in reservoirs. Herein, a novel poly(AM‐co‐A‐β‐CD‐co‐AE) polymer was synthesized by utilizing...

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Bibliographic Details
Published in:Die Stärke 2012-04, Vol.64 (4), p.281-289
Main Authors: Zou, Changjun, Tang, Quanwu, Tan, Naidi, Xiao, Pufu, Hu, Xuze
Format: Article
Language:English
Subjects:
Acrylamide
Biological and medical sciences
carbon
Carbon steel
Cereal and baking product industries
corrosion
Corrosion inhibitor
Corrosion inhibitors
ethylene oxide
Food industries
Food toxicology
Fundamental and applied biological sciences. Psychology
oil fields
Oil recovery
Oil-gas field development
Petroleum production
phenols
polyacrylamide
Polymer flooding technology
Salt
salt tolerance
steel
sulfuric acid
synergism
temperature
β-Cyclodextrin
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Summary:Owing to superior properties such as temperature resistance and salt tolerance etc., modified polyacrylamide (PAM) as one of the main injected polymers has been widely investigated to enhance oil production in reservoirs. Herein, a novel poly(AM‐co‐A‐β‐CD‐co‐AE) polymer was synthesized by utilizing β‐CD and AE to copolymerize with AM and characterized by FT‐IR and SEM. Furthermore, the temperature resistance and salt tolerance of poly(AM‐co‐A‐β‐CD‐co‐AE) polymer were explored. The results showed that the presence of the poly(AM‐co‐A‐β‐CD‐co‐AE) polymer better achieved temperature resistance and salt tolerance properties than is the case with PAM, which has potential application for enhancing oil recovery in the high‐temperature and high‐mineralization oilfield. On the other hand, the inhibition performance of poly(AM‐co‐A‐β‐CD‐co‐AE) polymer as a corrosion inhibitor was evaluated by SEM and electrochemical techniques. SEM observations of the carbon steel surface confirmed the protective role of the corrosion inhibitor. The results of potentiodynamic polarization and EIS measurements on the corrosion inhibition of carbon steel samples in 0.5 M sulfuric acid solutions revealed that the highest inhibition efficiency of it over 90% was obtained, indicating poly(AM‐co‐A‐β‐CD‐co‐AE) polymer acts as a more efficient corrosion inhibitor for carbon steel.
ISSN:0038-9056
1521-379X
DOI:10.1002/star.201100139