Journal cover Journal topic
Geothermal Energy Science An open-access journal
Journal topic
Volume 1, issue 1
Geoth. Energ. Sci., 1, 1-11, 2013
https://doi.org/10.5194/gtes-1-1-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
Geoth. Energ. Sci., 1, 1-11, 2013
https://doi.org/10.5194/gtes-1-1-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.

  22 Oct 2013

22 Oct 2013

Effectiveness of acidizing geothermal wells in the South German Molasse Basin

S. Schumacher and R. Schulz S. Schumacher and R. Schulz
  • Leibniz Institute for Applied Geophysics, Stilleweg 2, 30655 Hanover, Germany

Abstract. In Germany, many hydro-geothermal plants have been constructed in recent years, primarily in the region of Munich. As the host formation here mainly consists of carbonates, nearly all recently drilled wells have been acidized in order to improve the well yield. In this study, the effectiveness of these acid treatments is analyzed with respect to the amount of acid used and the number of acid treatments carried out per well. The results show that the first acid treatment has the largest effect, while subsequent acidizing improves the well only marginally. Data also indicate that continued acidizing can lead to degradation of the well. These findings may not only be important for geothermal installations in Germany but also for projects, for example, in Austria, France or China where geothermal energy is produced from carbonate formations as well.

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