Issue 10, 2015
From the journal:

New Journal of Chemistry

A novel water-soluble hydrophobically associating polyacrylamide based on oleic imidazoline and sulfonate for enhanced oil recovery†

Shaohua Gou,*ab   Shan Luo,b   Tongyi Liu,b   Peng Zhao,b   Yang He,b   Qinglin Panb  and  Qipeng Guo*c  

* Corresponding authors

a State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China
E-mail: shaohuagou@swpu.edu.cn

b Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China

c Polymers Research Group, Institute for Frontier Materials, Deakin University, Locked Bag 20000, Geelong, Victoria 3220, Australia
E-mail: qguo@deakin.edu.au

Abstract

3-(2-(2-Heptadec-8-enyl-4,5-dihydro-imidazol-1-yl)ethylcarbamoyl)acrylic acid (NIMA), 3-(diallyl-amino)-2-hydroxypropyl sulfonate (NDS), acrylamide (AM) and acrylic acid (AA) were successfully utilized to prepare novel acrylamide-based copolymers (named AM/AA/NIMA and AM/AA/NDS/NIMA) which were functionalized by a combination of imidazoline derivative and/or sulfonate via redox free-radical polymerization. The two copolymers were characterized by infrared (IR) spectroscopy, 1H nuclear magnetic resonance (1H NMR), viscosimetry, pyrene fluorescence probe, thermogravimetry (TG) and differential thermogravimetry (DTG). As expected, the polymers exhibited excellent thickening property, shear stability (viscosity retention rate 5.02% and 7.65% at 1000 s−1) and salt-tolerance (10 000 mg L−1 NaCl: viscosity retention rate up to 17.1% and 10.2%) in comparison with similar concentration partially hydrolyzed polyacrylamide (HPAM). The temperature resistance of the AM/AA/NDS/NIMA solution was also remarkably improved and the viscosity retention rate reached 54.8% under 110 °C. According to the core flooding tests, oil recovery could be enhanced by up to 15.46% by 2000 mg L−1 of the AM/AA/NDS/NIMA brine solution at 80 °C.

Graphical abstract: A novel water-soluble hydrophobically associating polyacrylamide based on oleic imidazoline and sulfonate for enhanced oil recovery

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Article information

DOI
https://doi.org/10.1039/C5NJ01153A
Article type
Paper
Submitted
07 May 2015
Accepted
07 Jul 2015
First published
07 Jul 2015

New J. Chem., 2015,39, 7805-7814

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A novel water-soluble hydrophobically associating polyacrylamide based on oleic imidazoline and sulfonate for enhanced oil recovery

S. Gou, S. Luo, T. Liu, P. Zhao, Y. He, Q. Pan and Q. Guo, New J. Chem., 2015, 39, 7805 DOI: 10.1039/C5NJ01153A

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