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

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

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 flu...

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Main Authors: Zuddas Pierpaolo, Salvi Stefano, Lopez Olivier, De Giudici Giovanni, Censi Paolo
Format: Article
Language:English
Published: EDP Sciences 2019-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/24/e3sconf_wri-162018_01056.pdf
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spelling doaj-f4e99d6a84e54e25813c910fecbaa79c2021-03-02T09:13:36ZengEDP SciencesE3S Web of Conferences2267-12422019-01-01980105610.1051/e3sconf/20199801056e3sconf_wri-162018_01056Escape of Supercritical-CO2 Fluids Trapped in Calcite Nano-metric PoresZuddas Pierpaolo0Salvi Stefano1Lopez Olivier2De Giudici Giovanni3Censi Paolo4Sorbonne Université, CNRSGET, Université de Toulouse, CNRS, IRD, CNESStatoilDepartment of Chemistry and Earth Sciences, University of CagliariDISTEM, University of PalermoFlow 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.https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/24/e3sconf_wri-162018_01056.pdf
collection DOAJ
language English
format Article
sources DOAJ
author Zuddas Pierpaolo
Salvi Stefano
Lopez Olivier
De Giudici Giovanni
Censi Paolo
spellingShingle Zuddas Pierpaolo
Salvi Stefano
Lopez Olivier
De Giudici Giovanni
Censi Paolo
Escape of Supercritical-CO2 Fluids Trapped in Calcite Nano-metric Pores
E3S Web of Conferences
author_facet Zuddas Pierpaolo
Salvi Stefano
Lopez Olivier
De Giudici Giovanni
Censi Paolo
author_sort Zuddas Pierpaolo
title Escape of Supercritical-CO2 Fluids Trapped in Calcite Nano-metric Pores
title_short Escape of Supercritical-CO2 Fluids Trapped in Calcite Nano-metric Pores
title_full Escape of Supercritical-CO2 Fluids Trapped in Calcite Nano-metric Pores
title_fullStr Escape of Supercritical-CO2 Fluids Trapped in Calcite Nano-metric Pores
title_full_unstemmed Escape of Supercritical-CO2 Fluids Trapped in Calcite Nano-metric Pores
title_sort escape of supercritical-co2 fluids trapped in calcite nano-metric pores
publisher EDP Sciences
series E3S Web of Conferences
issn 2267-1242
publishDate 2019-01-01
description 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.
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/24/e3sconf_wri-162018_01056.pdf
work_keys_str_mv AT zuddaspierpaolo escapeofsupercriticalco2fluidstrappedincalcitenanometricpores
AT salvistefano escapeofsupercriticalco2fluidstrappedincalcitenanometricpores
AT lopezolivier escapeofsupercriticalco2fluidstrappedincalcitenanometricpores
AT degiudicigiovanni escapeofsupercriticalco2fluidstrappedincalcitenanometricpores
AT censipaolo escapeofsupercriticalco2fluidstrappedincalcitenanometricpores
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