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首页> 外文期刊>Journal of Applied Polymer Science >Behavior of partially hydrolyzed polyacrylamide/polyethyleneimine reinforced with coal fly ash for preformed particle hydrogels
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Behavior of partially hydrolyzed polyacrylamide/polyethyleneimine reinforced with coal fly ash for preformed particle hydrogels

机译：用煤粉煤灰加固部分水解聚丙烯酰胺/聚乙烯亚胺的行为预成型颗粒水凝胶

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摘要

High water production and low oil recovery are attributable to reservoir heterogeneity, making extraction economically inefficient. To improve oil production, it is important to solve permeability issues, to allow a more uniform and efficient sweep. In recent years, several studies of preformed particle gel (PPG) have been performed reduce reservoir heterogeneity and enhance oil recovery. In this work, the effect of coal fly ash (CFA) on hydrolyzed polyacrylamide (PHPA) crosslinked with polyethyleneimine PPG were evaluated regarding thermal, rheological, and structural properties. The rheological results showed an increase in elastic behavior with the presence of CFA. Thermal analysis revealed degradation resistance of 271% with only 1.0% CFA. The swelling test proved that the presence of CFA supports the absorption of a brine solution. The results suggest a significant increase in properties assessed with small CFA contents due to a strong interaction between CFA and three-dimensional polymer networks.
机译：高水产生产和低油回收可归因于储层异质性，使提取经济效率低下。为了提高石油生产，重要的是解决渗透性问题，允许更均匀和高效的扫描。近年来，已经进行了几次预成型颗粒凝胶（PPG）的研究减少了储层异质性并增强了储存。在这项工作中，关于热，流变学和结构性能，评估煤粉煤灰（CFA）对水解聚乙烯PPG的水解聚丙烯酰胺（PHPA）的影响。流变结果表明，随着CFA的存在，弹性行为的增加。热分析显示出271％的降解抗性，只有1.0％CFA。溶胀检验证明了CFA的存在支持盐水溶液的吸收。结果表明，由于CFA和三维聚合物网络之间的强相互作用，具有小型CFA内容物的性能显着增加。

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