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AGU: Geophysical Research Letters

 

Index Terms

  • Hydrology: Anthropogenic effects
  • Hydrology: Modeling
  • Hydrology: Numerical approximations and analysis
  • Volcanology: Volcanic hazards and risks
  • General or Miscellaneous: New fields (not classifiable under other headings)

Abstract

Numerical studies of fluid leakage from a geologic disposal reservoir for CO2 show self-limiting feedback between fluid flow and heat transfer

Karsten Pruess

Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA

Leakage of CO2 from a hypothetical geologic storage reservoir along an idealized fault zone has been simulated, including transitions between supercritical, liquid, and gaseous CO2. We find strong non-isothermal effects due to boiling and Joule-Thomson cooling of expanding CO2. Leakage fluxes are limited by limitations in conductive heat transfer to the fault zone. The interplay between multiphase flow and heat transfer effects produces non-monotonic leakage behavior.

Received 19 April 2005; accepted 27 June 2005; published 29 July 2005.

Citation: Pruess, K. (2005), Numerical studies of fluid leakage from a geologic disposal reservoir for CO2 show self-limiting feedback between fluid flow and heat transfer, Geophys. Res. Lett., 32, L14404, doi:10.1029/2005GL023250.

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