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日用化学工业（中英文） ›› 2023, Vol. 53 ›› Issue (2): 133-139.doi: 10.3969/j.issn.1001-1803.2023.02.002

• 基础研究 • 上一篇    下一篇

Ca-SA/P（AM-AMPS）微球的制备及性能研究

宣雅妮1,唐凡2,张涛2,庄力齐1,赵世成1,*()   

  1. 1.华东理工大学 化工学院 联合国家重点实验室-上海多相结构材料实验室，上海 200237
    2.长庆油田公司油气工艺研究院，陕西 西安 710014
  • 收稿日期:2022-04-14 修回日期:2023-01-09 出版日期:2023-02-22 发布日期:2023-02-23
  • 通讯作者: 赵世成
  • 基金资助:
    国家自然科学基金资助项目(21878089)

Preparation of Ca-SA/P（AM-AMPS） microsphere and their properties

Xuan Yani1,Tang Fan2,Zhang Tao2,Zhuang Liqi1,Zhao Shicheng1,*()   

  1. 1. Shanghai Multiphase Materials Laboratory, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
    2. Oil and Gas Technology Research Institute, Changqing Oilfield Company, Xi’an, Shaanxi 710014, China
  • Received:2022-04-14 Revised:2023-01-09 Online:2023-02-22 Published:2023-02-23
  • Contact: Shicheng Zhao

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摘要：

针对聚丙烯酰胺类调剖剂耐温性能不佳，常温溶胀较快的问题，通过在聚丙烯酰胺P（AM-AMPS）微球表面包覆海藻酸钠（SA）并用Ca2+交联固化制备海藻酸钙/聚丙烯酰胺（Ca-SA/P（AM-AMPS））微球来改善其耐温性能。通过傅里叶变换红外光谱、扫描电镜、透射电镜和纳米粒度及Zeta电位仪对微球的结构、形貌及性能进行了表征。结果表明，在不同SA质量分数下微球平均粒径在47~92 nm之间，当SA质量分数为8%时，Ca-SA/P（AM-AMPS）微球的感温溶胀性能最佳，在20 ℃下可溶胀2.52倍，较P（AM-AMPS）微球下降42%；在60 ℃下可溶胀3.35倍，较P（AM-AMPS）微球提高52%。Ca-SA/P（AM-AMPS）微球在常温下溶胀较慢，在高温下快速溶胀且溶胀倍率更大，能够更好地匹配注入调剖工艺，实现高效调剖驱油的作用。

关键词: 堵水调剖, 聚丙烯酰胺, 海藻酸钙, 延迟溶胀

Abstract:

Polyacrylamide profile control agents have the problems of poor temperature resistance and rapid swelling at room temperature. Calcium alginate/Polyacrylamide （Ca-SA/P（AM-AMPS）） microspheres were prepared by cross-linking Ca2+ with sodium alginate （SA） on the surface of microspheres to improve their properties. FT-IR, SEM, TEM, Nano Sizer and Zeta-potential Tester were used to analyze the structure, morphology and properties of the microspheres. The results showed that the average particle size of Ca-SA/P（AM-AMPS） microspheres ranged from 47 nm to 92 nm at different SA mass fraction. When the mass fraction of SA was 8%, the swelling property of Ca-SA/P（AM-AMPS） microspheres was the best. The swelling property of Ca-SA/P（AM-AMPS） microspheres was 2.52 times at 20 ℃, which was 42% lower than that of P（AM-AMPS） microspheres. At 60 ℃, the swelling property of Ca-SA/P（AM-AMPS） microspheres was 3.35 times, 52% higher than P（AM-AMPS） microspheres. The results show that Ca-SA/P（AM-AMPS） microspheres swell slowly at room temperature, and swell quickly at high temperature with a larger swelling, which can better match the injection profile control process and achieve efficient profile control and oil displacement.

Key words: water plugging and profile control, polyacrylamide, calcium alginate, delayed swelling

中图分类号: 

  • TE357