Preparation and properties of novel pH-sensitive core-shell microspheres for enhanced oil recovery
Preparation and properties of novel pH-sensitive core-shell microspheres for enhanced oil recovery
复制标题
新型pH敏感核壳强化采油微球的制备及性能
DOI：
10.1002/pi.5390
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发表时间：
2017
影响因子：
3.2
通讯作者：
an
中科院分区：
文献类型：
--
作者：
Zhang Peng;Bai Shixun;You Qing;Ji Wenjuan;Yu Haiyang;Li D;an
采用表面引发原子转移自由基聚合的方法，在交联聚丙烯酰胺颗粒上以丙烯酸钠为壳层生长，合成了一种新型的pH敏感核壳微球。通过傅里叶变换红外光谱、1H核磁共振光谱、扫描电镜、透射电镜和原子力显微镜对微球的结构和特性进行了表征。研究了微球的粘度和粒径对pH值变化的响应。作为一种潜在的调剖驱油剂，对其降渗增油性能进行了设计试验研究。©2017化学工业学会
A novel pH‐sensitive core−shell microsphere was synthesized by growing sodium acrylate as a shell on crosslinked polyacrylamide particles as the core by surface‐initiated atom transfer radical polymerization. The structures and characteristics of the microspheres were confirmed by Fourier transform infrared spectroscopy,1H NMR spectroscopy, SEM, transmission electron microscopy and AFM. The viscosity and size of the microspheres in response to changes in pH value were also investigated. As a kind of potential profile control and flooding agent, the performances of permeability reduction and enhanced oil recovery were studied in designed experiments. © 2017 Society of Chemical Industry