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Conference Papers Year : 2009

CO2-Thermodynamic Model in a Leaking Well

Abstract

In the context of supercritical CO2 geological storage, the study of leakage event through free media leads to a turbulent two-phase flow model with Reynolds number Re > 500. In the present work, we compute analytically and characterize the 1-D CO2 rising velocity in a water column due to buoyancy effect. We also give numerous orders of magnitude concerning side effects during gas migration, such as CO2 solubility and Joule-Thomson cooling. Most interesting is the CO2 phase transition at ~800 m depth, where gas bubbles may expand a lot and accelerate, or condensate into liquid, slow down and accumulate.

Dates and versions

hal-00630958 , version 1 (11-10-2011)

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Frédéric Wertz, Pascal Audigane, Olivier Bouc. CO2-Thermodynamic Model in a Leaking Well. 9th International Conference on Greenhouse Gas Control Technologies (GHGT-9), Nov 2008, Washington, United States. pp.1791-1798, ⟨10.1016/j.egypro.2009.01.234⟩. ⟨hal-00630958⟩

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