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首页> 外文期刊>Journal of Applied Polymer Science >Polymeric and non-crosslinked acid self-thickening agent based on hydrophobically associating water-soluble polymer during the acid rock reaction
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Polymeric and non-crosslinked acid self-thickening agent based on hydrophobically associating water-soluble polymer during the acid rock reaction

机译：基于酸性岩反应期间疏水相关水溶性聚合物的聚合物和非交联酸自增稠剂

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摘要

Different from traditional crosslinked polymer diverting agents, a polymeric and non-crosslinked acid self-thickening agent (ZPAM) based on hydrophobically associating water-soluble polymer of acrylamide (AM), [2-(methacryloyloxy)ethyl]trimethylammonium chloride (DMC) and N,N '-dimethyl octadecyl allyl ammonium chloride (DOAC) was synthesized. The apparent viscosity variation of ZPAM acid solutions in acid rock reaction and rheological properties of ZPAM spent acid solutions were studied. Results showed that ZPAM acid solutions demonstrated good uninterruptedly thickening ability from low apparent viscosity to high apparent viscosity during the acid rock reaction. Meanwhile, ZPAM spent acid solutions showed good shear resistance, viscoelasticity and high temperature resistance. The thickening mechanism of ZPAM acid solutions during the acid rock reaction was explained by apparent viscosity change, rheological properties of simulative ZPAM acid solutions, and ZPAM aqueous solutions with different concentrations of CaCl2. The results showed increasing calcium chloride concentration enhanced the hydrophobic association strength of the thickener solution, resulting in increasing solution viscosity, in other words, the self-thickening agent showed excellent salt resistance and acid resistance. In addition, the change of association strength of ZPAM acid solutions during the acid rock reaction was further confirmed via environmental scanning electron micrographs and UV spectrum. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47907.
机译：基于酸丙烯酰胺（AM）的疏水性缔合的水溶性聚合物，[2-（甲基丙烯酰氧基）乙基]三甲基氯化物（DMC）和基于传统的交联聚合物转移剂合成N，N，N'-二甲基烯丙基烯丙基氯化铵（DOAC）。研究了ZPAM酸溶液在酸岩反应中的表观粘度变化及ZPAM废酸溶液的流变性能。结果表明，ZPAM酸性溶液在酸性岩石反应期间从表观粘度降低到高表观粘度，表现出良好的不间断增厚能力。同时，ZPAM废酸溶液显示出良好的剪切电阻，粘弹性和高耐耐耐耐力。通过表观粘度变化，模拟ZPAM酸溶液的表观粘度变化，流变性，具有不同浓度的CaCl 2的ZPAM水溶液，解释了酸岩反应过程中ZPAM酸溶液的增稠机理。结果表明，氯化钙浓度增加增强了增稠剂溶液的疏水结合强度，导致溶液粘度增加，换句话说，自增稠剂显示出优异的耐盐性和耐酸性。此外，通过环境扫描电子显微照片和UV光谱进一步证实了酸岩反应过程中ZPAM酸溶液的结合强度的变化。 （c）2019 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019,136,47907。

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