Escape of Supercritical-CO2 Fluids Trapped in Calcite Nano-metric Pores

Paolo Censi, Olivier Lopez, Giovanni De Giudici, Pierpaolo Zuddas, Stefano Salvi, Pierpaolo Zuddas

Risultato della ricerca: Articlepeer review

Abstract

Flow of supercritical CO2-bearing fluids through a rock is a fundamental phenomenon which acts upon a great many geological processes ranging from seismic activity to formation of ore deposits. Atomic Force Microscopy scanning experiments allowed us to infer movement of supercritical CO2-bearing fluids through calcite crystals and relate it to natural decrepitation of nanoscale fluid inclusions. Calculated velocities exceed the rate of diffusion predicated via current vacancy models by several orders of magnitude implying that CO2-rich fluid movement through micro and nano-pore space may presently be greatly underestimated.
Lingua originaleEnglish
Numero di pagine4
RivistaE3S Web of Conferences
Volume98
Stato di pubblicazionePublished - 2019

All Science Journal Classification (ASJC) codes

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  • ???subjectarea.asjc.2100.2100???
  • ???subjectarea.asjc.1900.1900???

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