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The joint project SENSE – fibre-optic strain sensing with respect to a known reference

Authors
/persons/resource/lotte

Krawczyk,  C.M.
2.2 Geophysical Imaging of the Subsurface, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

/persons/resource/wollin

Wollin,  Christopher
2.2 Geophysical Imaging of the Subsurface, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

/persons/resource/leila

Ehsaninezhad,  Leila
2.2 Geophysical Imaging of the Subsurface, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Liehr,  Sascha
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Kloth,  Andre
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Kirchner,  Julia
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Hahn,  Max
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

/persons/resource/mlipus

Lipus,  Martin Peter
2.2 Geophysical Imaging of the Subsurface, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

/persons/resource/j_hart

Hart,  Johannes
2.2 Geophysical Imaging of the Subsurface, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Zabihi,  Mohammadmasoud
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Krebber,  Katerina
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Hicke,  Konstantin
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Weber,  Bernd
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Reinsch,  Thomas
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

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Citation

Krawczyk, C., Wollin, C., Ehsaninezhad, L., Liehr, S., Kloth, A., Kirchner, J., Hahn, M., Lipus, M. P., Hart, J., Zabihi, M., Krebber, K., Hicke, K., Weber, B., Reinsch, T. (2023): The joint project SENSE – fibre-optic strain sensing with respect to a known reference, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-5037


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021434
Abstract
For the efficient use of geothermal energy, especially for heat provision, energy must be provided close to a consumer structure, thus in urban areas. Exploration for potential reservoir or storage horizons and their microseismic monitoring during operation are, therefore, mandatory.For this purpose, the joint project SENSE tests seismic exploration and monitoring approaches based on fibre-optic sensing in urban areas using both active and passive seismic sources. To carry out the seismic measurements, a field-ready demonstrator is being built to carry out spatially distributed dynamic fibre-optic strain measurements. In addition to available instrumentation, strain changes with respect to a known reference are recorded, thereby also enabling the detection of long-term/quasi-static strain changes. This brings decisive advantages with regard to the detection of deep or long-wave signals as well as for the exclusion of very slow deformation movements in connection with the use of the geological subsurface.We exemplify the monitoring of borehole operations and the horizontal recording of the seismic wave field using cables in Berlin and Potsdam with the new developments tested. Processing workflows encompass shot gather extraction, and picking of dispersion curves that yield after inversion shear wave velocity models exposing several velocity interfaces. To this end, we expect that SENSE will deliver new options for urban monitoring also beyond geothermal.