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Aqueous Hybrids of Silica Nanoparticles and Hydrophobically Associating Hydrolyzed Polyacrylamide Used for EOR in High-Temperature and High-Salinity Reservoirs

Author

Listed:
  • Dingwei Zhu

    (Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China)

  • Limin Wei

    (Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China)

  • Biqing Wang

    (Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China)

  • Yujun Feng

    (Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
    State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, China)

Abstract

Water-soluble polymers are known to be used in chemically enhanced oil recovery (EOR) processes, but their applications are limited in high-temperature and high-salinity oil reservoirs because of their inherent poor salt tolerance and weak thermal stability. Hydrophobic association of partially hydrolyzed polyacryamide (HAHPAM) complexed with silica nanoparticles to prepare nano-hybrids is reported in this work. The rheological and enhanced oil recovery (EOR) properties of such hybrids were studied in comparison with HAHPAM under simulated high-temperature and high-salinity oil reservoir conditions ( T : 85 °C; total dissolved solids: 32,868 mg∙L −1 ; [Ca 2+ ] + [Mg 2+ ]: 873 mg∙L −1 ). It was found that the apparent viscosity and elastic modulus of HAHPAM solutions increased with addition of silica nanoparticles, and HAHPAM/silica hybrids exhibit better shear resistance and long-term thermal stability than HAHPAM in synthetic brine. Moreover, core flooding tests show that HAHPAM/silica hybrid has a higher oil recovery factor than HAHPAM solution.

Suggested Citation

  • Dingwei Zhu & Limin Wei & Biqing Wang & Yujun Feng, 2014. "Aqueous Hybrids of Silica Nanoparticles and Hydrophobically Associating Hydrolyzed Polyacrylamide Used for EOR in High-Temperature and High-Salinity Reservoirs," Energies, MDPI, vol. 7(6), pages 1-14, June.
    • Handle: RePEc:gam:jeners:v:7:y:2014:i:6:p:3858-3871:d:37293
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    Citations

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    Cited by:

    1. Hassan I. Nimir & Ahmed Hamza & Ibnelwaleed A. Hussein, 2020. "Development of Greener D-Metal Inorganic Crosslinkers for Polymeric Gels Used in Water Control in Oil and Gas Applications," Energies, MDPI, vol. 13(16), pages 1-15, August.
    2. Druetta, P. & Raffa, P. & Picchioni, F., 2019. "Chemical enhanced oil recovery and the role of chemical product design," Applied Energy, Elsevier, vol. 252(C), pages 1-1.
    3. Nanjun Lai & Xin Guo & Ning Zhou & Qian Xu, 2016. "Shear Resistance Properties of Modified Nano-SiO 2 /AA/AM Copolymer Oil Displacement Agent," Energies, MDPI, vol. 9(12), pages 1-13, December.
    4. Yongpeng Sun & Yanchao Fang & Ang Chen & Qing You & Caili Dai & Rui Cheng & Yifei Liu, 2017. "Gelation Behavior Study of a Resorcinol–Hexamethyleneteramine Crosslinked Polymer Gel for Water Shut-Off Treatment in Low Temperature and High Salinity Reservoirs," Energies, MDPI, vol. 10(7), pages 1-13, July.

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