Experimental and numerical investigations into oil-drainage rates during vapor extraction of heavy oils

A. S. Alkindi, Y. M. Al-Wahaibi, A. H. Muggeridge

Research output: Contribution to journalArticle

26 Citations (Scopus)


A set of analog vapor-extraction (VAPEX) laboratory experiments was performed to test the ability of existing analytic and numerical models to predict oil-drainage rates from this process. The selected analog fluids and porous media enabled all input parameters to the analytic model to be determined independently of the analog VAPEX experiments without history matching. The results show that the underprediction of oil rate by the standard analytic model is not because of increased levels of mixing between the solvent and oil over that expected from molecular diffusion and convective dispersion, but rather because of a deficiency in the analytic model formulation.

Original languageEnglish
Pages (from-to)343-357
Number of pages15
JournalSPE Journal
Issue number2
Publication statusPublished - Jun 2011


ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Geotechnical Engineering and Engineering Geology

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