Dissolution trapping - Convection enhancement limited by geology

Peter Frykman, Dag Wessel-Berg

Research output: Contribution to journalConference article in journalpeer-review

5 Citations (Scopus)

Abstract

The security of storage of CO2 by injection as dense-phase gas in geological formations, includes evaluating the efficiency of the different long-term trapping mechanisms. As part of this, it is often suggested that the amount of dissolved CO2 over long time perspective can be enhanced significantly by the added effect on effective dissolution rate by the brine convection mechanism. The work presented here suggests this effect to be minimal in realistic reservoir geometries including intraformational sealing shale layers of some lateral continuity. The results from a simulation study indicate that in reservoir architectures with this layered geometry, the development of the convection as an enhanced trapping mechanism will be limited.

Original languageEnglish
Pages (from-to)5467-5478
Number of pages12
JournalEnergy Procedia
Volume63
DOIs
Publication statusPublished - 2014
Event12th International Conference on Greenhouse Gas Control Technologies - Austin, United States
Duration: 5 Oct 20149 Oct 2014
Conference number: 12

Keywords

  • Convection
  • Diffusion
  • Dissolution
  • Storage security
  • Trapping mechanisms
  • CO2

Programme Area

  • Programme Area 3: Energy Resources

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