Capillary Alteration of Caprocks by Acid Gases

@inproceedings{Shah2008CapillaryAO,
  title={Capillary Alteration of Caprocks by Acid Gases},
  author={Virenkumar Shah and Daniel Broseta and G{\'e}rard Mouronval},
  year={2008}
}
The safety of acid gas geological storage is to a large extent controlled by the capillary properties of the caprock. This low-permeable (e.g., clayey) porous media usually saturated with water acts as a capillary barrier to the underlying stored acid gas, provided its water-wettability is preserved and water/acid gas interfacial tension (IFT) is high enough. The displacement or capillary breakthrough pressure, above which the stored acid gas intrudes into the caprock, is directly related to… CONTINUE READING

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