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  • Melo, Clarissa L.Pontifical Catholic Univ Rio Grande do Sul PUCRS, Brazil (författare)

Integration results of soil CO2 flux and subsurface gases in the Ressacada Pilot site, Southern Brazil

  • Artikel/kapitelEngelska2017

Förlag, utgivningsår, omfång ...

  • Elsevier,2017
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:lnu-75674
  • https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-75674URI
  • https://doi.org/10.1016/j.egypro.2017.03.1510DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:kon swepub-publicationtype

Anmärkningar

  • The first CO2 monitoring field lab at the Ressacada Farm, in the Southern region of Brazil, started in 2011 and until 2015 offered an excellent opportunity to run controlled CO2 releases experiments in soil and shallow subsurface through vertical injection wells. This paper focus on the presentation and comparison of the results obtained at the last campaign realized at this site in August 2015. The results integrate a time-lapse monitoring experiment of CO2 migration in both saturated and unsaturated sand-rich sediments and soil, using soil CO2 flux measurements and subsurface gas analyses through CO2 concentrations (ppm) and carbon isotope ratios (delta C-13 of CO2). The CO2 flux results in the studied area showed an increase in the flux values according to the increasing of injection rate and along the campaign are directed to the southwest portion of the area. However, even by injecting large amounts of CO2, fluxes are greatly reduced when it rains. The gas analysis also showed an increase in CO2 concentrations according to the increasing of the injection rate mainly in the superficial levels of the monitoring wells (0.5m and 2m depth). The delta C-13 of CO2 found on the 3rd injection day showed the presence of CO2 injected and demonstrate that the sampling methodology with vacutainer vial was effective, since there is no atmospheric contamination. The correlation of isotopic analysis were consistent with the results of concentrations and CO2 fluxes and thus, it is clear that the CO2 breakthrough occurred from the 3rd day of injection, while were obtained the largest CO2 fluxes, the higher gas concentrations in the subsurface, as well as the industrial origin of delta C-13 of CO2.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Goudinho, Flavio S.Pontifical Catholic Univ Rio Grande do Sul PUCRS, Brazil (författare)
  • Bressan, Lia W.Pontifical Catholic Univ Rio Grande do Sul PUCRS, Brazil (författare)
  • Constant, Marcelo J.Pontifical Catholic Univ Rio Grande do Sul PUCRS, Brazil (författare)
  • dos Santos, Victor Hugo J. M.Pontifical Catholic Univ Rio Grande do Sul PUCRS, Brazil (författare)
  • Rodrigues, Luiz FredericoPontifical Catholic Univ Rio Grande do Sul PUCRS, Brazil (författare)
  • Pires, Jessica P.Pontifical Catholic Univ Rio Grande do Sul PUCRS, Brazil (författare)
  • Ketzer, João MarceloPontifical Catholic Univ Rio Grande do Sul PUCRS, Brazil(Swepub:lnu)makeab (författare)
  • Moreira, Andrea Cristina de C. A.PETROBRAS Petr Brasileiro SA CENPES, Brazil (författare)
  • do Rosario, FatimaPETROBRAS Petr Brasileiro SA CENPES, Brazil (författare)
  • Musse, Ana Paula S.PETROBRAS Petr Brasileiro SA CENPES, Brazil (författare)
  • Pontifical Catholic Univ Rio Grande do Sul PUCRS, BrazilPETROBRAS Petr Brasileiro SA CENPES, Brazil (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:13th International Conference on Greenhouse Gas Control Technologies, GHGT-13: Elsevier, s. 3793-3804

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