Emmanuel Gaucher

Emmanuel Gaucher

  • Institut für Angewandte Geowissenschaften -

    Geothermie und Reservoir-Technologie

     

    KIT- Karlsruher Institut für Technologie,

    Campus Süd

     

    Adenauerring 20b

    76131 Karlsruhe

Profile

Research topics:

  • Physical processes at the origin of the seismicity induced in geothermal reservoirs
  • Processing and interpretation of seismicity to characterize reservoirs
  • Probabilistic approaches to process and analyse geophysical data

Projects:

  • Current:
    • INSIDE:
      • Title: Induced seismicity and ground deformation as interference aspects of geothermal operations in the south Molasse basin – Investigations for better understanding processes in deep underground and measures for risk minimization / „Induzierte Seismizität & Bodendeformation als Interferenzaspekte beim Betrieb von Geothermieanlagen in der süddeutschen Molasse – Untersuchungen zu einem verbesserten Prozessverständnis im tiefen Untergrund und Maßnahmen zur Risikominimierung“
      • Supported by the Federal Ministry for Economic Affairs and Energy (BMWi)
      • Grant agreement No. 03EE4008A
      • 01/09/2019 - 31/08/2022
      • Website: https://inside-geothermie.de/
    • DAMAST:
      • Title: Dams and Seismicity - Technologies for risk reduction: From rigid constructions to smart solutions
      • Supported by "CLIENT II - International Partnership for Sustainable Innovations" funding programme of the Federal Ministry of Education and Research (BMBF) within the framework programme "Research for Sustainable Development (FONA3)"
      • Grant agreement No. 03G0882A
      • 01/05/2019 - 30/04/2022
      • Website: http://www.damast-caucasus.de/
  • Past:
    • GeMex:
      • Title: Coopoeration in Geothermal energy research Europe-Mexico for development of Enhanced Geothermal Systems and Superhot Geothermal Systems
      • Supported by European Union's Horizon 2020 research and innovation programme: LCE-23-2016
      • Grant agreement No. 727550
      • 01/10/2016 - 31/05/2020
      • Website: http://www.gemex-h2020.eu
    • DEEPEGS:
      • Title: Deployment of deep Enhanced Geothermal Systems for sustainable energy business.
      • Supported by European Union's Horizon 2020 research and innovation programme: LCE-2014-2015/LCE-2015-2
      • Grant agreement No. 690771
      • 01/12/2015 - 30/04/2020
      • Website: https://deepegs.eu

Teaching:

  • Teaching:
    • KIT-AGW-M.Sc.: Borehole technology: Logging and drilling
    • KIT-AGW-M.Sc.: Numerical methods in the geosciences
    • KIT-AGW-M.Sc.: Geothermal reservoir engineering
    • University of Cergy-Pontoise (France)-M.Sc. 2020: Numerical fundamentals and numerical modelling in reservoir engineering
    • University of Strasbourg (France)-M.Sc. 2011, 2012, 2014: Induced seismicity application and processing
  • Doctoral student supervision:
    • Cotutelle KIT - University of Strasbourg, R. Köpke (2017 - ...): Fault activation by repeated fluid injection: application to the Rittershofen deep geothermal site, France
    • Cotutelle KIT - University of Strasbourg, X. Kinnaert (2013 - 2016): Induced seismicity processing: estimate of errors and their impact on geothermal reservoiur models
  • Master student supervision: R. Beuster (2016), M. Martin (2015), G. Mahnke (2014)

CV:

2010 - now KIT
2001 - 2010 Magnitude / Baker Hughes - Saint-Tulle, France
1999 - 2000 Compagnie-Générale de Geophysique / Borehole Services Division - Keston, England
1998 BRGM - Guadeloupe, France
1995 - 1998 Institut de Physique du Globe - Paris, France: PhD thesis in Geophysics
1993 - 1995 CEA / Laboratoire de Détection et de Géophysique - Tahiti, French Polynesia
1993 Institut de Physique du Globe - Paris, France, M. Sc. Geophysics

 

Referenced Publications


2023
Seismological study around the Enguri dam reservoir (Georgia) based on old catalogs and ongoing monitoring
Karam Zadeh Toularoud, N.; Tsereteli, N.; Gaucher, E.; Tugushi, N.; Shubladze, T.; Varazanashvili, O.; Rietbrock, A.
2023. Journal of Seismology, 27 (6), 953–977. doi:10.1007/s10950-023-10173-5Full textFull text of the publication as PDF document
2021
Remembering François H. Cornet’s contribution to the geomechanics and geophysics communities
Prioul, R.; Desroches, J.; Gaucher, E.; Bérard, T.; Doan, M.-L.; Lecampion, B.; Beauducel, F.
2021. 55th U.S. Rock Mechanics/Geomechanics Symposium, Virtual, June 2021, ARMA-2021–1310, American Rock Mechanics Association (ARMA)
2020
Local Earthquake Tomography at Los Humeros Geothermal Field (Mexico)
Toledo, T.; Gaucher, E.; Jousset, P.; Jentsch, A.; Haberland, C.; Maurer, H.; Krawczyk, C.; Calò, M.; Figueroa, A.
2020. Journal of geophysical research / Solid earth, 125 (12), Art.Nr.e2020JB020390. doi:10.1029/2020JB020390Full textFull text of the publication as PDF document
Pseudo-probabilistic identification of fracture network in seismic clouds driven by source parameters
Koepke, R.; Gaucher, E.; Kohl, T.
2020. Geophysical journal international, 223 (3), 2066–2084. doi:10.1093/gji/ggaa441
Seismicity induced during the development of the Rittershoffen geothermal field, France
Maurer, V.; Gaucher, E.; Grunberg, M.; Koepke, R.; Pestourie, R.; Cuenot, N.
2020. Geothermal Energy, 8 (1), Article: 5. doi:10.1186/s40517-020-0155-2Full textFull text of the publication as PDF document
2019
Probability of fault reactivation in the Bavarian Molasse Basin
Seithel, R.; Gaucher, E.; Mueller, B.; Steiner, U.; Kohl, T.
2019. Geothermics, 82, 81–90. doi:10.1016/j.geothermics.2019.06.004
2017
Effect of flow and physical parameters on the mineral deposition of geothermal wellbores: WellboreKit development
Nusiaputra, Y.; Dimier, A. D.; Nitschke, F. N.; Gaucher, E. G.; Kohl, T. K.
2017. 79th EAGE Conference and Exhibition 2017: Energy, Technology, Sustainability - Time to Open a New Chapter; Paris; France; 12 June 2017 through 15 June 2017, EAGE (European Association of Geoscientists & Engineers). doi:10.3997/2214-4609.201701326
A new probabilistic formulation to locate seismic events from P-wave polarization
Gaucher, E.; Gesret, A.; Noble, M.
2017. 79th EAGE Conference and Exhibition 2017: Energy, Technology, Sustainability - Time to Open a New Chapter; Paris; France; 12 June 2017 through 15 June 2017, EAGE (European Association of Geoscientists & Engineers). doi:10.3997/2214-4609.201700746
Integrated Research as Key to the Development of a Sustainable Geothermal Energy Technology
Meller, C.; Bremer, J.; Ankit, K.; Baur, S.; Bergfeldt, T.; Blum, P.; Canic, T.; Eiche, E.; Gaucher, E.; Hagenmeyer, V.; Heberling, F.; Held, S.; Herfurth, S.; Isele, J.; Kling, T.; Kuhn, D.; Mayer, D.; Müller, B.; Nestler, B.; Neumann, T.; Nitschke, F.; Nothstein, A.; Nusiaputra, Y.; Orywall, P.; Peters, M.; Sahara, D.; Schäfer, T.; Schill, E.; Schilling, F.; Schröder, E.; Selzer, M.; Stoll, M.; Wiemer, H.-J.; Wolf, S.; Zimmermann, M.; Kohl, T.
2017. Energy technology, 5 (7), 965–1006. doi:10.1002/ente.201600579
2016
Introduction to special section: Geothermal energy
Eichkitz, C. G.; Schreilechner, M. G.; Gegenhuber, N.; Reinecker, J.; Davis, J.; Eichinger, F.; Gaucher, E.
2016. Interpretation, 4 (4), SRi. doi:10.1190/INT-2016-0913-SPSEINTRO.1
Structural control of geothermal reservoirs in extensional tectonic settings: An example from the Upper Rhine Graben
Meixner, J.; Schill, E.; Grimmer, J. C.; Gaucher, E.; Kohl, T.; Klingler, P.
2016. Journal of structural geology, 82, 1–15. doi:10.1016/j.jsg.2015.11.003
Modelling earthquake location errors at a reservoir scale: a case study in the Upper Rhine Graben
Kinnaert, X.; Gaucher, E.; Achauer, U.; Kohl, T.
2016. Geophysical journal international, 206 (2), 861–879. doi:10.1093/gji/ggw184
2015
Induced seismicity in geothermal reservoirs: A review of forecasting approaches
Gaucher, E.; Schoenball, M.; Heidbach, O.; Zang, A.; Fokker, P. A.; Wees, J.-D. van; Kohl, T.
2015. Renewable & sustainable energy reviews, 52, 1473–1490. doi:10.1016/j.rser.2015.08.026
2014
Change of stress regime during geothermal reservoir stimulation
Schoenball, M.; Dorbath, L.; Gaucher, E.; Wellmann, J. F.; Kohl, T.
2014. Geophysical research letters, 41 (4), 1163–1170. doi:10.1002/2013GL058514

Conference contributions


2023
Local earthquake recordings using Distributed Acoustic Sensing (DAS) at BFO
Karamzadeh Toularoud, N.; Gao, Y.-J.; Azzola, J.; Forbriger, T.; Widmer-Schnidrig, R.; Gaucher, E.; Rietbrock, A.
2023. European Geosciences Union General Assembly 2023, Copernicus. doi:10.5194/egusphere-egu23-16307Full textFull text of the publication as PDF document
2022
Numerical determination of long-term alterations of THM characteristics of a Malm geothermal reservoir during continuous exploitation
Egert, R.; Gaucher, E.; Savvatis, A.; Goblirsch, P.; Kohl, T.
2022. European Geothermal Congress (EGC) : Berlin, Germany, 17-21 October 2022 : proceedings Full textFull text of the publication as PDF document
Numerical determination of long-term alterations of THM characteristics of a Malm geothermal reservoir during continuous exploitation
Egert, R.; Gaucher, E.; Savvatis, A.; Goblirsch, P.; Kohl, T.
2022, October 20. European Geothermal Congress (EGC 2022), Berlin, Germany, October 17–21, 2022
Towards a geothermal reservoir management system
Gaucher, E.; Hansinger, M.; Goblirsch, P.; Azzola, J.; Thiemann, K.
2022. European Geothermal Congress (EGC) : Berlin, Germany, 17-21 October 2022 : proceedings, Bundesverband Geothermie Full textFull text of the publication as PDF document
Deployment of a Distributed Fiber Optic Sensing (DFOS) monitoring station in Munich within INSIDE project
Azzola, J.; Baasch, R.; Schulz, I.; Gaucher, E.; Bögelspacher, F.
2022. 82. Jahrestagung der Deutschen Physikalischen Gesellschaft (DGG 2022), Online, March 7–10, 2022 Full textFull text of the publication as PDF document
PSD analysis and seismic event detectability of Distributed Acoustic Sensing (DAS) mesurements from several monitoring sites
Karamzadeh Toularoud, N.; Azzola, J.; Gaucher, E.; Forbriger, T.; Widmer-Schnidrig, R.; Bögelspacher, F.; Frietsch, M.; Rietbrock, A.
2022. EGU22, Copernicus. doi:10.5194/egusphere-egu22-8787Full textFull text of the publication as PDF document
2021
INSIDE: Investigating the impact of geothermal exploitation in the Munich area The induced seismicity perspective
Azzola, J.; Gaucher, E.; Bögelspacher, F.; Baasch, R.; Betz, B.; Schulz, I.
2021, September 24. 9th European Geothermal Workshop (EGW 2021), Karlsruhe, Germany, September 23–24, 2021 Full textFull text of the publication as PDF document
Remembering François H. Cornet’s contribution to the geomechanics and geophysics communities
Prioul, R.; Desroches, J.; Gaucher, E.; Bérard, T.; Doan, M.-L.; Lecampion, B.; Beauducel, F.
2021. 55th U.S. Rock Mechanics/Geomechanics Symposium, Virtual, June 2021, ARMA-2021–1310, American Rock Mechanics Association (ARMA)
2019
One year of passive seismic monitoring of the Los Humeros (Mexico) geothermal field [in press]
Gaucher, E.; Toledo, T.; Metz, M.; Figueroa Soto, A.; Caló, M.
2019. European Geothermal Congress, The Hague, The Netherlands, 11 - 14 June 2019
Estimating the Static Formation Temperature Using the Drilling and Logging Data of the RN-15/IDDP-2 Well in Iceland [in press]
Wang, J.; Nitschke, F.; Gaucher, E.; Kohl, T.
2019. DEEPEGS Symposium: How to enhance deep geothermal well productivity? - Orléans, France, 6-7 November 2019
Thermal stimulation of the deep geothermal wells: insights from the H2020-DEEPEGS project [in press]
Peter-Borie, M.; Loschetter, A.; Blaisonneau, A.; Van Tran, H.; Gaucher, E.; Sigursson, Ó.; Frileifsson, G. Ó.; Damy, P.-C.; Le Lous, M.; Tulinius, H.
2019. European Geothermal Congress, The Hague, The Netherlands, 11 - 14 June 2019
Local seismicity recorded at the geothermal field of Los Humeros (Mexico)
Gaucher, E.; Toledo Zambrano, T. A.
2019. 79.Jahrestagung Deutsche Geophysikalische Gesellschaft, 04.–07. März 2019 in Braunschweig - Abstracts (DGG 2019), Institut für Geophysik und extraterrestrische Physik
2018
Induzierte Seismizität in Deutschland Hintergrund und Verfahren
Kohl, T.; Gaucher, E.
2018, June 26. Geothermie-Forum (2018), Zurich, Switzerland, June 26, 2018
Template matching applied to the seismicity induced in the Rittershoffen deep geothermal reservoir [in press]
Köpke, R.; Lengline, O.; Gaucher, E.; Schmittbuhl, J.; Kohl, T.
2018. 6th European Geothermal Workshop (EGW 2018), Strasbourg, October 10-11 2018
Hydraulic anisotropy in simulated sheared fractures: a statistical analysis with comparison of aperture determination methods
Marchand, S.; Selzer, M.; Mersch, O.; Schoenball, M.; Nitschke, F.; Schmittbuhl, J.; Nestler, B.; Gaucher, E.; Kohl, T.
2018. European Geosciences Union General Assembly (EGU 2018), Vienna, Austria, April 8–13, 2018
First results from stimulation assessment and monitoring of the 426°C geothermal well RN-15/IDDP-2 (H2020-DEEPEGS project)
Köpke, R.; Haaf, N.; Limberger, F.; Wang, J.; Peters, M.; Gaucher, E.; Schill, E.; Kohl, T.
2018. Ideen und Innovationen für die Energie von morgen : Wissenschaftliche Beiträge des KIT zu den Jahrestagungen 2014, 2016 und 2017 des KIT-Zentrums Energie. Ed.: W. Breh, 91–96, KIT Scientific Publishing. doi:10.5445/IR/1000085342Full textFull text of the publication as PDF document
2017
Effect of flow and physical parameters on the mineral deposition of geothermal wellbores: WellboreKit development
Nusiaputra, Y.; Dimier, A. D.; Nitschke, F. N.; Gaucher, E. G.; Kohl, T. K.
2017. 79th EAGE Conference and Exhibition 2017: Energy, Technology, Sustainability - Time to Open a New Chapter; Paris; France; 12 June 2017 through 15 June 2017, EAGE (European Association of Geoscientists & Engineers). doi:10.3997/2214-4609.201701326
A new probabilistic formulation to locate seismic events from P-wave polarization
Gaucher, E.; Gesret, A.; Noble, M.
2017. 79th EAGE Conference and Exhibition 2017: Energy, Technology, Sustainability - Time to Open a New Chapter; Paris; France; 12 June 2017 through 15 June 2017, EAGE (European Association of Geoscientists & Engineers). doi:10.3997/2214-4609.201700746
2016
Propagation of Velocity Model Errors in Earthquake Absolute Locations: Application to the Rittershoffen Geothermal Field
Gaucher, E.; Kinnaert, X.; Achauer, U.; Kohl, T.
2016. 41st Workshop on Geothermal Reservoir Engineering 2016 : Stanford, California, USA, 22-24 February 2016, 1489, Red Hook Full textFull text of the publication as PDF document
A method to interpret induced seismicity clouds as a fracture network
Köpke, R.; Gaucher, E.; Meixner, J.; Kohl, T.
2016. European Geothermal Congress (EGC 2016), Strasbourg, France, September 19–26, 2016
Modelling earthquake location errors at a reservoir scale : A case study in the Upper Rhine Graben
Kinnaert, X.; Gaucher, E.; Kohl, T.; Achauer, U.
2016. European Geothermal Congress (EGC 2016), Strasbourg, France, September 19–26, 2016
Propagation of Velocity Model Errors in Earthquake Absolute Locations : Application to the Rittershoffen (France) Geothermal Field
Gaucher, E.; Kinnaert, X.; Achauer, U.; Kohl, T.
2016. 41st Workshop on Geothermal Reservoir Engineering (2016), San Jose, CA, USA, February 22–24, 2016
New Bayesian formulation to integrate body-wave polarizations in non-linear earthquake location
Gaucher, E.; Gesret, A.; Noble, M.; Kohl, T.
2016. European Geothermal Congress (EGC 2016), Strasbourg, France, September 19–26, 2016
A new Bayesian formulation to integrate body-wave polarisation in non-linear probabilistic earthquake location
Gaucher, E.; Gesret, A.; Noble, M.; Kohl, T.
2016. EGU General Assembly 2017, Vienna, Austria, 17-22 April 2016
A new Bayesian formulation to locate earthquakes from body-wave direction of arrival
Gaucher, E.; Gesret, A.; Noble, M.
2016. American Geophysical Union (AGU) Fall Meeting 2016, San Francisco, California, 12th - 16th December 2016
Uncertainties and inaccuracies of earthquake hypocenter absolute locations : One geothermal application and one theoretical development
Gaucher, E.
2016. Earthquake Science Center Seminars, Menlo Park Campus, California, 25th February 2016
2015
Seismic monitoring of the Rittershoffen EGS project (Alsace, France)
Maurer, V.; Cuenot, N.; Gaucher, E.; Grunberg, M.; Vergne, J.; Wodling, H.; Lehujeur, M.; Schmittbuhl, J.
2015. 4th European Geothermal Workshop (EGW 2015), Strasbourg, France, October 19–20, 2015
Modeling earthquake location errors at a reservoir scales : A case study in the Upper Rhine Graben
Kinnaert, X.; Gaucher, E.; Kohl, T.; Achauer, U.
2015. 4th European Geothermal Workshop (EGW 2015), Strasbourg, France, October 19–20, 2015
Induced Seismicity in Geothermal Reservoirs : Physical Processes and Key Parameters
Gaucher, E.; Schoenball, M.; Heidbach, O.; Zang, A.; Fokker, P.; Wees, J.-D. van; Kohl, T.
2015. World Geothermal Congress (WGC 2015), Melbourne, Australia, April 19–25, 2015
First test to locate the microseismicity induced at Rittershoffen geothermal field (France) using a migration-based technique
Gaucher, E.; Maggi, A.; Cuenot, N.; Maurer, V.
2015. 4th European Geothermal Workshop (EGW 2015), Strasbourg, France, October 19–20, 2015
Migration based detection and location of the microseismicity induced at Rittershoffen geothermal field (Alsace, France)
Gaucher, E.; Maggi, A.; Cuenot, N.; Maurer, V.
2015. Energy, Science and Technology, Conference and Exhibition (EST 2015), Karlsruhe, Germany, May 20–22, 2015
Induced Seismicity in Geothermal Reservoirs: Physical Processes and Key Parameters
Gaucher, E.; Schoenball, M.; Heidbach, O.; Zang, A.; Fokker, P.; Wees, J.-D. van; Kohl, T.
2015. Proceedings World Geothermal Congress 2015, Melbourne, AUS, April 19-25, 2015, International Geothermal Association (IGA)
Migration based detection and location of the microseismicity induced at Rittershoffen geothermal field (Alsace, France)
Gaucher, E.; Maggi, A.; Cuenot, N.; Maurer, V.
2015. Energy, Science and Technology, Conference and Exhibition (EST 2015), Karlsruhe, Germany, May 20–22, 2015
2014
Modelling location errors of the seismicity induced at Soultz-sous-Forêts
Kinnaert, X.; Gaucher, E.
2014. 3rd European Geothermal Workshop (EGW 2014), Karlsruhe, Germany, October 15–16, 2014
Are the seismogenic responses of the Soultz and the Groß Schönebeck enhanced geothermal fields understood?
Gaucher, E.; Kohl, T.
2014. 74. Jahrestagung der Deutschen Geophysikalischen Gesellschaft - gemeinsam mit der Arbeitsgemeinschaft Extraterrestrische Forschung und dem Fachverband Extraterrestrische Physik der Deutschen Physikalischen Gesellschaft (2014), Karlsruhe, Germany, March 10–13, 2014
Effective detection capability of a local seismic network
Gaucher, E.
2014. EAGE/DGG Workshop 2014 : Microseismic Monitoring, Karlsruhe, Germany, 14th March 2014
Effective detection capability of a local seismic network
Gaucher, E.
2014. EAGE/DGG Workshop ’Microseismic Monitoring’, Karlsruhe, March 14, 2014
Are the seismogenic responses of the Soultz and the Groß Schönebeck enhanced geothermal fields understood?
Gaucher, E.; Kohl, T.
2014. 74. Jahrestagung der Deutschen Geophysikalischen Gesellschaft (DGG’14), Karlsruhe, 10.-13. März 2014
The geomechanical significance of clay for geothermal reservoirs
Meller, C.; Kohl, T.; Gaucher, E.
2014. EGW 2014 : 3rd European Geothermal Workshop, Karlsruhe, Germany, 15-16 October 2014. doi:10.13140/2.1.4055.2966
Modelling location errors of the seismicity induced at Soultz-sous-Forêts
Kinnaert, X.; Gaucher, E.
2014. 3rd European Geothermal Workshop (EGW’14), Karlsruhe, October 15-16, 2014
2013
Complete release of horizontal shear stresses during geothermal reservoir stimulation
Schoenball, M.; Gaucher, E.; Wellmann, J. F.; Kohl, T.
2013. American Geophysical Union (AGU) Fall Meeting 2013, San Francisco, California, 9th - 13th December 2013
Change of stress during reservoir stimulation
Schoenball, M.; Dorbath, L.; Gaucher, E.; Wellmann, J. F.; Kohl, T.
2013. Proceedings of the European Geothermal Congress (EGC) 2013 , Pisa, Italy, 3rd - 7th June 2013. Ed.: B. Kepinska, European Geothermal Congress
Change of stress during reservoir stimulation
Schoenball, M.; Dorbath, L.; Gaucher, E.; Wellmann, J. F.; Kohl, T.
2013. European Geothermal Congress (EGC 2013), Pisa, Italy, June 3–7, 2013
Towards a dense passive seismic network over Rittershoffen geothermal field
Gaucher, E.; Maurer, V.; Wodling, H.; Grunberg, M.
2013. European Geothermal Congress (EGC 2013), Pisa, Italy, June 3–7, 2013
A priori detection capability of a microseismic monitoring network
Gaucher, E.; Kohl, T.
2013. European Geothermal Congress (EGC 2013), Pisa, Italy, June 3–7, 2013
Why the seismicity induced in Soultz-sous-Forêts and Gross Schoenebeck enhanced geothermal fields are so different?
Gaucher, E.
2013. American Geophysical Union (AGU) Fall Meeting 2013, San Francisco, California, 9th - 13th December 2013
2012
Estimation of the Failure Probability during EGS Stimulation - Geological and Mechanical Processes
Meller, C.; Kohl, T.; Gaucher, E.; Genter, A.
2012. European Geosciences Union General Assembly, Vienna, Austria, 22.-27 April 2012, 8 S
Approach for Determination of the Failure Probability at the Soultz-sous-Forêts EGS Project
Meller, C.; Kohl, T.; Gaucher, E.; Genter, A.
2012. Proceedings. 37th Workshop on Geothermal Reservoir Engineering, 30 January - 1 February 2012, Stanford, California, USA, 8 S
2011
First steps towards determining the failure probability at the Soultz-sous-Forêts EGS project
Meller, C.; Gaucher, E.; Kohl, T.
2011. Soultz Geothermal Conference, Soultz-sous-Forêts, France, 5-6 October 2011
Abschätzung der Scherwahrscheinlichkeit von Klüften während der hydraulischen Stimulation
Meller, C.; Kohl, T.; Genter, A.; Gaucher, E.
2011. Geothermiekongress 2011, Bochum, 15.-17. November 2011, 10 S