Journal cover Journal topic
Hydrology and Earth System Sciences An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 4.936 IF 4.936
  • IF 5-year value: 5.615 IF 5-year
    5.615
  • CiteScore value: 4.94 CiteScore
    4.94
  • SNIP value: 1.612 SNIP 1.612
  • IPP value: 4.70 IPP 4.70
  • SJR value: 2.134 SJR 2.134
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 107 Scimago H
    index 107
  • h5-index value: 63 h5-index 63
Discussion papers
https://doi.org/10.5194/hess-2016-281
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/hess-2016-281
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 08 Jun 2016

Research article | 08 Jun 2016

Review status
This discussion paper is a preprint. It has been under review for the journal Hydrology and Earth System Sciences (HESS). The manuscript was not accepted for further review after discussion.

Brine migration along vertical pathways due to CO2 injection – a simulated case study in the North German Basin with stakeholder involvement

Alexander Kissinger1, Vera Noack2, Stefan Knopf2, Wilfried Konrad3, Dirk Scheer3, and Holger Class1 Alexander Kissinger et al.
  • 1Department of Hydromechanics and Modelling of Hydrosystems, University Stuttgart, Pfaffenwaldring 61, 70569 Stuttgart, Germany
  • 2Bundesanstalt für Geowissenschaften und Rohstoffe (BGR), Stilleweg 2, 30655 Hannover
  • 3DIALOGIK, Lerchenstraße 22, 70176 Stuttgart, Germany

Abstract. Brine migration into potential drinking water aquifers due to the injection of CO2 into deep saline aquifers is one of the potential hazards associated with the Carbon Capture and Storage technology (CCS). Thus, in any site selection process, an important criterion should be the evaluation of brine migration resulting from the injection. We follow an interdisciplinary approach using participatory modeling to incorporate stakeholder opinion at an early stage in order to discuss and evaluate model conception and relevant scenarios for brine migration. The basis for this approach is a realistic (but not real) on-shore site in the North German Basin with characteristic geological features for that region. Our model fully couples flow in shallow and in deep saline aquifers including variable-density transport of salt and a realistic description of the top surface boundary conditions with groundwater recharge and rivers. We investigate different scenarios to identify relevant system components. Further, different model simplifications are compared and discussed with respect to the relevant physical processes and the expected data availability, i.e. to find a model as complex as necessary and as simple as possible. It becomes clear that the initial salt distribution plays a key role as to where noticeable concentration changes may occur. Also the boundary conditions are important for determining the amount of vertically displaced brine. Simplifications in the model setup, such as neglecting variable-density flow or simplifying the complex geometry may prove valid options given sparse data availability.

Alexander Kissinger et al.
Interactive discussion
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Interactive discussion
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Alexander Kissinger et al.
Alexander Kissinger et al.
Viewed  
Total article views: 566 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
330 202 34 566 56 66
  • HTML: 330
  • PDF: 202
  • XML: 34
  • Total: 566
  • BibTeX: 56
  • EndNote: 66
Views and downloads (calculated since 08 Jun 2016)
Cumulative views and downloads (calculated since 08 Jun 2016)
Cited  
Saved  
No saved metrics found.
Discussed  
No discussed metrics found.
Latest update: 23 Jun 2019
Publications Copernicus
Download
Short summary
Stakeholder participation in numerical modeling of brine migration due to injection of CO2 into deep saline aquifers has proven a valuable approach to identifying and quantifying the potential hazard of groundwater contamination with salt. This paper (i) reports the process of participatory modeling and (ii) discusses essential findings showing that notable increases in salt concentrations are confined to regions where they were already high a priori and where barrier layers are discontinuous.
Stakeholder participation in numerical modeling of brine migration due to injection of CO2 into...
Citation