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  1. Knowledge of the crustal stress state is important for the assessment of subsurface stability. In particular, stress magnitudes are essential for the calibration of geomechanical models that estimate a continu...

    Authors: Sophia Morawietz, Oliver Heidbach, Karsten Reiter, Moritz Ziegler, Mojtaba Rajabi, Günter Zimmermann, Birgit Müller and Mark Tingay

    Citation: Geothermal Energy 2020 8:25

    Content type: Research

    Published on:

  2. Uranium and thorium decay series disequilibria in deep geothermal brines are a result of water–rock interaction processes. The migratory behavior of radionuclides provides valuable site-specific information an...

    Authors: Lena Kölbel, Thomas Kölbel, Ulrich Maier, Martin Sauter, Thorsten Schäfer and Bettina Wiegand

    Citation: Geothermal Energy 2020 8:24

    Content type: Research

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  3. Mineral precipitates, scales, are wide-spread in geothermal facilities and hamper technical and economic efficiency. Scales reported from earlier studies in the Bavarian Molasse Basin consisted mostly of calci...

    Authors: Bernhard Köhl, James Grundy and Thomas Baumann

    Citation: Geothermal Energy 2020 8:23

    Content type: Research

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  4. Classification schemes for geothermal energy sources have recently been improved to include the concept of geothermal play. Our comprehensive review for the island of Madagascar aims to enhance the understandi...

    Authors: M. Rajaobelison, J. Raymond, M. Malo and C. Dezayes

    Citation: Geothermal Energy 2020 8:22

    Content type: Review

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  5. The North Alpine Foreland Basin in SE Germany is Germany’s most active deep geothermal province. However, in its southern and eastern part the basin is considerably overpressured, which is a significant challe...

    Authors: Michael C. Drews, Peter Hofstetter, Kai Zosseder, Vladimir Shipilin and Harald Stollhofen

    Citation: Geothermal Energy 2020 8:20

    Content type: Research

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  6. When water is injected into a fracture-dominated reservoir that is cooler or hotter than the injected water, the reservoir permeability is expected to be altered by the injection-induced thermo-mechanical effe...

    Authors: Anniina Kittilä, Mohammadreza Jalali, Martin O. Saar and Xiang-Zhao Kong

    Citation: Geothermal Energy 2020 8:17

    Content type: Research

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  7. To improve the economics and viability of accessing deep georesources, we propose a combined thermo–mechanical drilling (CTMD) method, employing a heat source to facilitate the mechanical removal of rock, with...

    Authors: Edoardo Rossi, Martin O. Saar and Philipp Rudolf von Rohr

    Citation: Geothermal Energy 2020 8:16

    Content type: Research

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  8. Gravity measurements in the Upper Rhine Graben evidence spatial variations at the regional scale and close to the geothermal sites. They are classically interpreted as linked to the geology. We aim to bring ne...

    Authors: Bérénice Vallier, Vincent Magnenet, Jean Schmittbuhl and Christophe Fond

    Citation: Geothermal Energy 2020 8:13

    Content type: Research

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  9. For the successful realization and productivity prediction of new hydrothermal projects in the South German Molasse Basin, the hydraulic matrix properties of the Upper Jurassic Malm reservoir have to be determ...

    Authors: D. Bohnsack, M. Potten, D. Pfrang, P. Wolpert and K. Zosseder

    Citation: Geothermal Energy 2020 8:12

    Content type: Research

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  10. Knowledge of the undisturbed stress state is a key parameter for borehole stability, productivity and induced seismicity hazard assessment. Due to the sparse and incomplete availability of data records, 3D geo...

    Authors: Moritz O. Ziegler and Oliver Heidbach

    Citation: Geothermal Energy 2020 8:11

    Content type: Research

    Published on:

  11. The beginnings of geothermal implementation research in Poland date back to 1989–1993 when the Mineral and Energy Economy Research Institute of the Polish Academy of Sciences (MEERI PAS) launched the first geo...

    Authors: Wiesław Bujakowski, Bogusław Bielec, Maciej Miecznik and Leszek Pająk

    Citation: Geothermal Energy 2020 8:10

    Content type: Review

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  12. The authors have retracted this article (Drews et al. 2019) because some data have been used without the appropriate permissions. Additionally, the funding statement is not complete and the authorship is incor...

    Authors: Michael C. Drews, Peter Hofstetter, Kai Zosseder, Robert Straubinger, Andreas Gahr and Harald Stollhofen

    Citation: Geothermal Energy 2020 8:8

    Content type: Retraction Note

    Published on:

    The original article was published in Geothermal Energy 2019 7:3

  13. Crystallization of carbonates is a key process affecting the operation of geothermal facilities and aquifer heat storage systems. The crystals formed in an aquifer heat storage test in the Upper Jurassic carbo...

    Authors: Martina Ueckert, Carina Wismeth and Thomas Baumann

    Citation: Geothermal Energy 2020 8:7

    Content type: Research

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  14. Deep-borehole heat exchangers (DBHE) are generally coaxial pipes installed in deep boreholes and has become an alternative approach to utilize geothermal energy. Since the performance of the DBHE system can be...

    Authors: Sheng Pan, Yanlong Kong, Chaofan Chen, Zhonghe Pang and Jiyang Wang

    Citation: Geothermal Energy 2020 8:6

    Content type: Research

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  15. The development of the Rittershoffen deep geothermal field (Alsace, Upper Rhine Graben) between 2012 and 2014 induced unfelt seismicity with a local magnitude of less than 1.6. This seismicity occurred during ...

    Authors: Vincent Maurer, Emmanuel Gaucher, Marc Grunberg, Rike Koepke, Romain Pestourie and Nicolas Cuenot

    Citation: Geothermal Energy 2020 8:5

    Content type: Research

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  16. The energetic framework of Canadian remote communities relies on fossil fuels. This has adverse environmental and energy security issues. In order to offset diesel consumption, the search for local, sustainabl...

    Authors: M. M. Miranda, N. Giordano, J. Raymond, A. J. S. C. Pereira and C. Dezayes

    Citation: Geothermal Energy 2020 8:4

    Content type: Research

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  17. Anticosti Island is located in the Anticosti sedimentary basin, an Ordovician/Silurian carbonate platform. This platform is mainly composed of limestone and shale with some dolomite and sandstone and reaches u...

    Authors: Violaine Gascuel, Karine Bédard, Félix-Antoine Comeau, Jasmin Raymond and Michel Malo

    Citation: Geothermal Energy 2020 8:3

    Content type: Research

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  18. For successful geothermal reservoir exploration, accurate temperature estimation is essential. Since reservoir temperature estimation frequently involves high uncertainties when using conventional solute geoth...

    Authors: Lars H. Ystroem, Fabian Nitschke, Sebastian Held and Thomas Kohl

    Citation: Geothermal Energy 2020 8:2

    Content type: Research

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  19. Precise knowledge of the subsurface thermal field plays a key role in the assessment of geothermal targets. Unfortunately, deep underground temperature data is generally scarce and a matter of research. To ach...

    Authors: Ben Norden, Andrea Förster, Hans-Jürgen Förster and Sven Fuchs

    Citation: Geothermal Energy 2020 8:1

    Content type: Research

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  20. The Upper Rhine Graben (URG) has been extensively studied for geothermal exploitation over the past decades. Yet, the thermal conductivity of the sedimentary cover is still poorly constrained, limiting our abi...

    Authors: Pauline Harlé, Alexandra R. L. Kushnir, Coralie Aichholzer, Michael J. Heap, Régis Hehn, Vincent Maurer, Patrick Baud, Alexandre Richard, Albert Genter and Philippe Duringer

    Citation: Geothermal Energy 2019 7:38

    Content type: Research

    Published on:

  21. Hydrothermal convection in porous geothermal reservoir systems can be seen as a double-edged sword. On the one hand, regions of upflow in convective systems can increase the geothermal energy potential of the ...

    Authors: Jan Niederau, J. Florian Wellmann and Nele Börsing

    Citation: Geothermal Energy 2019 7:35

    Content type: Research

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  22. In the 1950s, a petroleum well in Soultz-sous-Forêts (no 4589; Upper Rhine Graben, France) reached the Lettenkohle (Triassic) at 830 m depth. During the exploration phase at Soultz-sous-Forêts, the first enhan...

    Authors: C. Aichholzer, Ph. Duringer and A. Genter

    Citation: Geothermal Energy 2019 7:34

    Content type: Research

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  23. The present study aims to understand the potential of a new and novel type of geothermal play system for high temperature and electricity production: crustal fault zones (CFZ). According to geological and geop...

    Authors: Hugo Duwiquet, Laurent Arbaret, Laurent Guillou-Frottier, Michael J. Heap and Mathieu Bellanger

    Citation: Geothermal Energy 2019 7:33

    Content type: Research

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  24. Temperature logs have important applications in the geothermal industry such as the estimation of the static formation temperature (SFT) and the characterization of fluid loss from a borehole. However, the tem...

    Authors: Jia Wang, Fabian Nitschke, Maziar Gholami Korzani and Thomas Kohl

    Citation: Geothermal Energy 2019 7:32

    Content type: Research

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  25. Integrity issues create challenges for maintaining the production of mature geothermal wells. Such problems are likely to occur in wells designed according to oil and gas standards, without considering the ext...

    Authors: B. T. H. Marbun, R. H. Ridwan, S. Z. Sinaga, B. Pande and B. A. Purbantanu

    Citation: Geothermal Energy 2019 7:31

    Content type: Research

    Published on:

  26. This paper describes a novel concept for integrating binary plants at a geothermal site which has been realized within a demonstration project in Indonesia. By using an intermediate hot water and an intermedia...

    Authors: Stephanie Frick, Stefan Kranz, Gina Kupfermann, Ali Saadat and Ernst Huenges

    Citation: Geothermal Energy 2019 7:30

    Content type: Research

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  27. The quantitative connections between subsurface geologic structure and measured geophysical data allow 3D geologic models to be tested against measurements and geophysical anomalies to be interpreted in terms ...

    Authors: Samuel W. Scott, Cari Covell, Egill Júlíusson, Águst Valfells, Juliet Newson, Birgir Hrafnkelsson, Halldór Pálsson and María Gudjónsdóttir

    Citation: Geothermal Energy 2019 7:29

    Content type: Research

    Published on:

  28. The Muschelkalk, composed of Triassic limestones, marls, dolomites, and evaporites, forms part of the Permo-Triassic cover of sedimentary rocks that directly overlies the fractured granitic reservoir used for ...

    Authors: Michael J. Heap, Alexandra R. L. Kushnir, H. Albert Gilg, Marie E. S. Violay, Pauline Harlé and Patrick Baud

    Citation: Geothermal Energy 2019 7:27

    Content type: Research

    Published on:

  29. A geothermal exploration corehole was drilled to a total depth of 1821.5 m on the Mountain Home Air Force Base near Mountain Home, Idaho. The corehole was used to collect an unusually large amount of data, inc...

    Authors: Thomas E. Lachmar, Thomas G. Freeman, James A. Kessler, Joseph F. Batir, James P. Evans, Dennis L. Nielson, John W. Shervais, Xiwei Chen, Douglas R. Schmitt and David D. Blackwell

    Citation: Geothermal Energy 2019 7:26

    Content type: Research

    Published on:

  30. Fault zones in the Upper Jurassic aquifer of the North Alpine Foreland Basin are generally regions with possibly increased hydraulic properties. They are consequently often part of the geothermal exploration c...

    Authors: Florian Konrad, Alexandros Savvatis, Florian Wellmann and Kai Zosseder

    Citation: Geothermal Energy 2019 7:25

    Content type: Research

    Published on:

  31. The use of the subsurface and the exploitation of subsurface resources require prior knowledge of fluid flow through fracture networks. For nuclear waste disposal, for the enhancement of hydrocarbon recovery f...

    Authors: Baptiste Lepillier, Alexandros Daniilidis, Nima Doonechaly Gholizadeh, Pierre-Olivier Bruna, Juliane Kummerow and David Bruhn

    Citation: Geothermal Energy 2019 7:24

    Content type: Research

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  32. Temperature variations often trigger coupled thermal, hydrological, mechanical, and chemical (THMC) processes that can significantly alter the permeability/impedance of fracture-dominated deep geological reser...

    Authors: Marina Grimm Lima, Daniel Vogler, Lorenzo Querci, Claudio Madonna, Bodo Hattendorf, Martin O. Saar and Xiang-Zhao Kong

    Citation: Geothermal Energy 2019 7:23

    Content type: Research

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  33. The utilization of geothermal energy remains underdeveloped, mainly due to the technical problem of silica scaling. The scaling can eventually disrupt the electricity production process due to frequent pipe ma...

    Authors: Felix Arie Setiawan, Edia Rahayuningsih, Himawan Tri Bayu Murti Petrus, Muhammad Istiawan Nurpratama and Indra Perdana

    Citation: Geothermal Energy 2019 7:22

    Content type: Research

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  34. The very shallow geothermal potential (vSGP) is increasingly recognized as a viable resource for providing clean thermal energy in urban and rural areas. This is primarily due to its reliability, low-cost inst...

    Authors: Dan Assouline, Nahid Mohajeri, Agust Gudmundsson and Jean-Louis Scartezzini

    Citation: Geothermal Energy 2019 7:19

    Content type: Research

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  35. In densely inhabited urban areas, deep borehole heat exchangers (DBHE) have been proposed to be integrated with the heat pump in order to utilize geothermal energy for building heating purposes. In this work, ...

    Authors: Chaofan Chen, Haibing Shao, Dmitri Naumov, Yanlong Kong, Kun Tu and Olaf Kolditz

    Citation: Geothermal Energy 2019 7:18

    Content type: Research

    Published on:

  36. Geothermal gradients were estimated at the points of a grid with cell size of 50 km by 50 km in northwestern Colombia. Depths to the bottom of magnetic sources were assumed to represent Curie depths, and were ...

    Authors: Wilson Quintero, Oscar Campos-Enríquez and Orlando Hernández

    Citation: Geothermal Energy 2019 7:16

    Content type: Research

    Published on:

    The Publisher Correction to this article has been published in Geothermal Energy 2019 7:20

  37. The North German Basin is one of the three major type localities in Germany for deep geothermal energy. Here, the pore space is the dominant parameter, in contrast to fractures (Rhine Graben) and karst (Molass...

    Authors: Charlotte M. Krawczyk, Manfred Stiller, Klaus Bauer, Ben Norden, Jan Henninges, Alexandra Ivanova and Ernst Huenges

    Citation: Geothermal Energy 2019 7:15

    Content type: Research

    Published on:

    The Publisher Correction to this article has been published in Geothermal Energy 2019 7:20

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