Stabilizing silica nanoparticles in high saline water by using polyvinylpyrrolidone for reduction of asphaltene precipitation damage under dynamic condition

Mohammad Reza Aghajanzadeh; Mohammad Sharifi

doi:10.1016/j.cjche.2018.12.001

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Stabilizing silica nanoparticles in high saline water by using polyvinylpyrrolidone for reduction of asphaltene precipitation damage under dynamic condition

Fluid Dynamics and Transport Phenomena | Updated：2026-01-06

- Stabilizing silica nanoparticles in high saline water by using polyvinylpyrrolidone for reduction of asphaltene precipitation damage under dynamic condition
- Chinese Journal of Chemical Engineering Vol. 27, Issue 5, Pages: 1021-1029(2019)
- Affiliations：
  
  Department of Petroleum Engineering, Amirkabir University of Technology, Tehran,Iran
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2018.12.001
  CLC：
- Published：2019
- Accepted：
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Mohammad Reza Aghajanzadeh, Mohammad Sharifi. Stabilizing silica nanoparticles in high saline water by using polyvinylpyrrolidone for reduction of asphaltene precipitation damage under dynamic condition[J]. Chinese Journal of Chemical Engineering, 2019, 27(5): 1021-1029.
DOI：

Mohammad Reza Aghajanzadeh, Mohammad Sharifi. Stabilizing silica nanoparticles in high saline water by using polyvinylpyrrolidone for reduction of asphaltene precipitation damage under dynamic condition[J]. Chinese Journal of Chemical Engineering, 2019, 27(5): 1021-1029. DOI： 10.1016/j.cjche.2018.12.001.

摘要

Abstract

In this study

the performance of stable nanofluid containing SiO

nanoparticles dispersed and stabilized in high salinity brine for asphaltene inhibition in dynamic condition is evaluated. In the first stage of this work

the stability of silica nanoparticles in different range of water salinity (0-100000 mg·L

-1

) is investigated. Next

stable nanofluid containing highest salinity is selected as asphaltene inhibitor agent to inject into the damaged core sample. The estimated values of oil recovery for base case

after damage process and after inhibition of asphaltene precipitation using nanofluid are 51.6%

36.1% and 46.7%

respectively. The results showed the reduction in core damage after using nanofluid. In addition

the relative permeability curves are plotted for the base case

after damage process and also after inhibition of asphaltene precipitation using nanofluid. Comparison of relative permeability curves shows

relative permeability of oil phase decreased after damage process as compared with the base case. But after using nanofluid the oil relative permeability curve has shifted to the right

and effective permeability of oil phase has been improved.

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