西南石油大学学报(自然科学版)

• 油气化学工程 • 上一篇    下一篇

含咪唑结构丙烯酰胺聚合物驱油剂的合成

蒋文超1,叶仲斌1,2**,苟绍华1,2,刘向君1,3,宋泽文2   

  1. 1. 西南石油大学化学化工学院,四川成都610500
    2.“油气藏地质及开发工程”国家重点实验室·西南石油大学,四川成都610500
    3. 西南石油大学地球科学与技术学院,四川成都610500
  • 出版日期:2014-12-01 发布日期:2014-12-01
  • 通讯作者: 叶仲斌,E-mail:yezb@swpu.edu.cn
  • 基金资助:

    国家自然科学基金石油化工联合基金“页岩气低成本高效钻完井技术基础研究”(U1262209);“油气藏地质及开发工程”国家重点实验
    室开放课题“黏土矿物微观水化特征”(PLN0906)。

Synthesis of Imidazoline Modified Acrylamide-based Copolymer as
EOR Chemical

Jiang Wenchao1, Ye Zhongbin1,2**, Gou Shaohua1,2, Liu Xiangjun1,3, Song Zewen2   

  1. 1. School of Chemistry and Chemical Engineering,Southwest Petroleum University,Chengdu,Sichuan 610500,China
    2. State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu,Sichuan 610500,China
    3. School of Geoscience and Technology,Southwest Petroleum University,Chengdu,Sichuan 610500,China
  • Online:2014-12-01 Published:2014-12-01

摘要:

以丙烯酰胺(AM)、丙烯酸(AA)、N–烯丙基咪唑(AI)及N,N–二烯丙基油酰亚胺(DXA)为原料,合成了一种
水溶性四元聚合物AM/AA/AI/DXA,考察了反应条件对聚合反应的影响,确立了最佳合成工艺。通过红外光谱(IR)、
核磁共振氢谱(1H NMR)、扫描电镜(SEM)分析了目标聚合物的结构及溶液微观特征。结果表明:该聚合物具有良好
的耐温抗剪切、抗盐性能。在60 ℃下驱替实验证明:与水驱相比,2 000 mg/L 的聚合物溶液可提高采收率达13.5%,
驱油效果明显。钠蒙脱土在2 000 mg/L 聚合物溶液中水化后,晶层间距与清水相比由18.953 2 Å 降至16.665 7 Å。

关键词: 提高采收率, 丙烯酰胺聚合物, 咪唑环, 驱油剂, 晶层间距

Abstract:

A novel copolymer was synthesized using acrylamide,acrylic acid,N–allylimidazole and N,N–diallyl oleamide.
The optimal conditions for synthesis such as temperature,pH,initiator and monomer loadings were studied. The viscosity
measurements,and rheological measurement of the obtained copolymer were characterized by Infrared(IR)spectroscopy,H
nuclear magnetic resonance spectrometer(1H NMR),scanning electron microscope(SEM). X-ray diffractometer(XRD)were
also conducted to investigate the clay stabilization property of the obtained copolymer. The results indicated that the copolymer
was of good temperature tolerance,and anti-shear abilities and salt resistance. Core flooding result revealed that the enhanced
oil recovery could be up to 13.8%. The result of X-ray diffractometer revealed a good clay stablility of sodium montmorillonite.

Key words: enhanced oil recovery, polyacrylamide, imidazoline ring, EOR chemical, crystalline interspace