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Polymeric and non‐crosslinked acid self‐thickening agent based on hydrophobically associating water‐soluble polymer during the acid rock reaction
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2019-05-11 , DOI: 10.1002/app.47907 Haiyang Tian 1, 2 , Hongping Quan 1, 2 , Zhiyu Huang 1, 2 , Wenmeng Duan 1 , Shunjie Deng 1
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2019-05-11 , DOI: 10.1002/app.47907 Haiyang Tian 1, 2 , Hongping Quan 1, 2 , Zhiyu Huang 1, 2 , Wenmeng Duan 1 , Shunjie Deng 1
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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. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47907.
中文翻译：
酸性岩石反应过程中基于疏水缔合水溶性聚合物的聚合和非交联酸自增稠剂
与传统的交联聚合物分流剂不同，基于丙烯酰胺（AM），[2-（甲基丙烯酰氧基）乙基]三甲基氯化铵（DMC）和疏水性缔合水溶性聚合物的非交联酸自增稠剂（ZPAM）ñ，ñ合成了'-二甲基十八烷基烯丙基氯化铵（DOAC）。研究了ZPAM酸溶液在酸岩反应中的表观粘度变化和ZPAM废酸溶液的流变性质。结果表明，ZPAM酸溶液在酸岩反应过程中表现出良好的不间断增稠能力，从低表观粘度到高表观粘度。同时，ZPAM废酸溶液显示出良好的抗剪切性，粘弹性和耐高温性。ZPAM酸溶液在酸岩反应过程中的增稠机理可通过表观粘度变化，模拟ZPAM酸溶液的流变特性以及不同浓度的CaCl 2的ZPAM水溶液来解释。。结果表明，氯化钙浓度的增加增强了增稠剂溶液的疏水缔合强度，从而增加了溶液粘度，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ZPAM酸溶液在酸岩反应过程中的缔合强度的变化。分级为4 +©2019 Wiley Periodicals，Inc.J.Appl。Polym。科学 2019，136，47907。
更新日期：2019-05-11
中文翻译：
酸性岩石反应过程中基于疏水缔合水溶性聚合物的聚合和非交联酸自增稠剂
与传统的交联聚合物分流剂不同，基于丙烯酰胺（AM），[2-（甲基丙烯酰氧基）乙基]三甲基氯化铵（DMC）和疏水性缔合水溶性聚合物的非交联酸自增稠剂（ZPAM）ñ，ñ合成了'-二甲基十八烷基烯丙基氯化铵（DOAC）。研究了ZPAM酸溶液在酸岩反应中的表观粘度变化和ZPAM废酸溶液的流变性质。结果表明，ZPAM酸溶液在酸岩反应过程中表现出良好的不间断增稠能力，从低表观粘度到高表观粘度。同时，ZPAM废酸溶液显示出良好的抗剪切性，粘弹性和耐高温性。ZPAM酸溶液在酸岩反应过程中的增稠机理可通过表观粘度变化，模拟ZPAM酸溶液的流变特性以及不同浓度的CaCl 2的ZPAM水溶液来解释。。结果表明，氯化钙浓度的增加增强了增稠剂溶液的疏水缔合强度，从而增加了溶液粘度，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ZPAM酸溶液在酸岩反应过程中的缔合强度的变化。分级为4 +©2019 Wiley Periodicals，Inc.J.Appl。Polym。科学 2019，136，47907。
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