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Article

Multiscale Characterisation of Fracture Patterns of a Crystalline Reservoir Analogue

1
Geothermal Science and Technology, Technical University of Darmstadt, Schnittspahnstraße 9, 64287 Darmstadt, Germany
2
Graduate School of Excellence Energy Science and Engineering, Technical University of Darmstadt, Otto-Berndt-Str. 3, 64287 Darmstadt, Germany
*
Author to whom correspondence should be addressed.
Academic Editors: Roberto Moretti and Jesus Martinez-Frias
Geosciences 2021, 11(9), 371; https://doi.org/10.3390/geosciences11090371
Received: 5 July 2021 / Revised: 23 August 2021 / Accepted: 26 August 2021 / Published: 3 September 2021
(This article belongs to the Section Structural Geology and Tectonics)
For an accurate multiscale property modelling of fractured crystalline geothermal reservoirs, an enhanced characterisation of the geometrical features and variability of the fracture network properties is an essential prerequisite. Combining regional digital elevation model analysis and local outcrop investigation, the study comprises the characterisation of the fracture pattern of a crystalline reservoir analogue in the Northern Odenwald, with LiDAR and GIS structural interpretation. This approach provides insights into the 3D architecture of the fault and fracture network, its clustering, and its connectivity. Mapped discontinuities show a homogeneous length distribution, which follows a power law with a −2.03 scaling factor. The connectivity of the fracture network is heterogenous, due to a fault control at the hectometric scale. Clustering is marked by long sub-vertical fractures at the outcrop scale, and strongly enhance heterogeneity around weathered fracture and fault corridors. The multi-variable dataset created within this study can be used as input data for accurate discrete fracture networks and fluid-flow modelling of reservoirs of similar type. View Full-Text
Keywords: fracture network characterisation; fault systems; LiDAR; granodioritic basement; crystalline reservoir; northern Odenwald; GeoLaB fracture network characterisation; fault systems; LiDAR; granodioritic basement; crystalline reservoir; northern Odenwald; GeoLaB
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MDPI and ACS Style

Bossennec, C.; Frey, M.; Seib, L.; Bär, K.; Sass, I. Multiscale Characterisation of Fracture Patterns of a Crystalline Reservoir Analogue. Geosciences 2021, 11, 371. https://doi.org/10.3390/geosciences11090371

AMA Style

Bossennec C, Frey M, Seib L, Bär K, Sass I. Multiscale Characterisation of Fracture Patterns of a Crystalline Reservoir Analogue. Geosciences. 2021; 11(9):371. https://doi.org/10.3390/geosciences11090371

Chicago/Turabian Style

Bossennec, Claire, Matthis Frey, Lukas Seib, Kristian Bär, and Ingo Sass. 2021. "Multiscale Characterisation of Fracture Patterns of a Crystalline Reservoir Analogue" Geosciences 11, no. 9: 371. https://doi.org/10.3390/geosciences11090371

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