Study of asphaltene deposition in porous media due to carbon dioxide injection

S. Soroush*, M. Vafaie-Sefti, M. Jamialahmadi, P. Pourafshary, P. L J Zitha, E. S J Rudolph, Y. Fallahzadeh

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Asphaltene deposition is common problem in petroleum industy during oil production, transportation and refining processes. The deposition of asphaltene in petroleum reservoir during production can cause formation damage and productivity decline. In this study, the kinetics of deposition of asphaltene from oil during CO2 flooding has been studied experimentally and theoretically. An experimental setup designed for studying the asphaltene deposition in porous media and its effect on petrophysical properties of media due to carbon dioxide injection.The set-up is designed to work under representative reservoir conditions up to 15000 psi and 120°C. This setup is a high-pressure, high-temperature coreflood with the main part of high-pressure cylinder that can be placed by the core or sandpack.The results showed that asphaltene deposition in porous media increases the pressure drop and decreases the permeability of the medium. Injection rate, temperature and concentration of CO2 and asphaltene have the main effect on the asphaltene deposition process. The asphaltene deposition increases as temperature and concentration increase.

Original languageEnglish
Title of host publication73rd European Association of Geoscientists and Engineers Conference and Exhibition 2011: Unconventional Resources and the Role of Technology. Incorporating SPE EUROPEC 2011
PublisherSociety of Petroleum Engineers
Pages4828-4832
Number of pages5
Volume6
ISBN (Print)9781617829666
Publication statusPublished - 2011

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics

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    Soroush, S., Vafaie-Sefti, M., Jamialahmadi, M., Pourafshary, P., Zitha, P. L. J., Rudolph, E. S. J., & Fallahzadeh, Y. (2011). Study of asphaltene deposition in porous media due to carbon dioxide injection. In 73rd European Association of Geoscientists and Engineers Conference and Exhibition 2011: Unconventional Resources and the Role of Technology. Incorporating SPE EUROPEC 2011 (Vol. 6, pp. 4828-4832). Society of Petroleum Engineers.