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Water-soluble acrylamide sulfonate copolymer for inhibiting shale hydration

Liu,X, Liu,K, Gou,S, Liang,L, Luo,C and Guo,Q 2014, Water-soluble acrylamide sulfonate copolymer for inhibiting shale hydration, Industrial and engineering chemistry research, vol. 53, no. 8, pp. 2903-2910, doi: 10.1021/ie403956d.

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Title Water-soluble acrylamide sulfonate copolymer for inhibiting shale hydration
Author(s) Liu,X
Liu,K
Gou,S
Liang,L
Luo,C
Guo,Q
Journal name Industrial and engineering chemistry research
Volume number 53
Issue number 8
Start page 2903
End page 2910
Total pages 8
Publisher American Chemical Society
Place of publication Washington, D.C.
Publication date 2014
ISSN 0888-5885
1520-5045
Summary Here we report a water-soluble acrylamide sulfonate copolymer for inhibiting shale hydrate formation. The copolymer, denoted as PANAA, was synthesized via copolymerization of acrylamide (AM), N,N-diallylbenzylamine (NAPA), acrylic acid (AA), and 2-(acrylamide)-2-methylpropane-1-sulfonic acid (AMPS). The performance of this new water-soluble copolymer for inhibiting shale hydration was investigated for the first time. The retention ratio of apparent viscosity of 2 wt % PANAA solution can reach 61.6% at 130 C and further up to 72.2% with 12 000 mg/L NaCl brine. The X-ray diffraction studies show that the addition of copolymer PANAA (5000 mg/L), in combination with a low loading of KCl (3 wt %), remarkably reduces the interlayer spacing of sodium montmorillonite (Na-MMT) in water from 19.04 to 15.65 Å. It has also found that these copolymer solutions, blending with KCl, can improve the retention of indentation hardness from 22% to 74% and increase the antiswelling ratio up to 84%. All results have demonstrated that the PANAA copolymer not only has excellent temperature-resistance and salt-tolerance but also exhibits a significant effect on inhibiting the hydration of clays and shale. © 2014 American Chemical Society.
Language eng
DOI 10.1021/ie403956d
Field of Research 030302 Nanochemistry and Supramolecular Chemistry
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, American Chemical Society
Persistent URL http://hdl.handle.net/10536/DRO/DU:30071712

Document type: Journal Article
Collection: Institute for Frontier Materials
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