CO2 storage in a depleted gas reservoir in Italy: Modeling the diffusion of CO2-rich fluids within the wellbore cement of an abandoned well (Contributo in volume (capitolo o saggio))

Type
Label
  • CO2 storage in a depleted gas reservoir in Italy: Modeling the diffusion of CO2-rich fluids within the wellbore cement of an abandoned well (Contributo in volume (capitolo o saggio)) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Alternative label
  • Biagi S. (1); Gherardi F. (1) (2010)
    CO2 storage in a depleted gas reservoir in Italy: Modeling the diffusion of CO2-rich fluids within the wellbore cement of an abandoned well
    CRC Press, Boca Raton (Stati Uniti d'America) in Proceedings International Symposium on Water-Rock Interaction, 2010
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Biagi S. (1); Gherardi F. (1) (literal)
Pagina inizio
  • 843 (literal)
Pagina fine
  • 846 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#titoloVolume
  • Proceedings International Symposium on Water-Rock Interaction (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#volumeInCollana
  • XIII (literal)
Note
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (1) Istituto di Geoscienze e Georisorse (IGG) - Consiglio Nazionale delle Ricerche (CNR), Pisa, Italy (literal)
Titolo
  • CO2 storage in a depleted gas reservoir in Italy: Modeling the diffusion of CO2-rich fluids within the wellbore cement of an abandoned well (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#isbn
  • 978-0-415-60426-0 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#curatoriVolume
  • Birkle P., Torres Alvarado I.S. (eds) (literal)
Abstract
  • The geochemical processes occurring in cement-based materials in contact with clay and arenaceous rock formations under high-PCO2 conditions have been investigated using reactive transport simulations. The site of interest is a depleted gas reservoir in Italy where CO2 geological sequestration is under evaluation. On the basis of field data, simulations have been carried out under liquid saturated, isothermal (T = 45°C) and isobaric (P = 140 bar) conditions. Two main reactive stages were predicted inside the cement sheath: a first \"carbonation\" stage, characterized by the dissolution of primary portlandite and CSH, the precipitation of calcite and some reduction in porosity, and a second \"acidification\" stage, characterized by a severe drop in pH, the dissolution of the newly-formed calcite and some increase in porosity. (literal)
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