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Manual of the Matlab Script FAST Calibration v2.4

Urheber*innen
/persons/resource/mziegler

Ziegler,  M.
WSM - World Stress Map Reports, Deutsches GeoForschungsZentrum;
2.6 Seismic Hazard and Risk Dynamics, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
Technical University of Munich, Munich, Germany;

/persons/resource/heidbach

Heidbach,  O.
WSM - World Stress Map Reports, Deutsches GeoForschungsZentrum;
2.6 Seismic Hazard and Risk Dynamics, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
Institute of Applied Geosciences, TU Berlin, 10587 Berlin, Germany;

/persons/resource/smorawie

Morawietz,  Sophia
WSM - World Stress Map Reports, Deutsches GeoForschungsZentrum;
2.6 Seismic Hazard and Risk Dynamics, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
Institute of Applied Geosciences, TU Berlin, 10587 Berlin, Germany;

/persons/resource/yusen

Wang,  Yusen
WSM - World Stress Map Reports, Deutsches GeoForschungsZentrum;
2.6 Seismic Hazard and Risk Dynamics, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
Institute of Applied Geosciences, TU Berlin, 10587 Berlin, Germany;

Externe Ressourcen

https://doi.org/10.5880/wsm.2023.002
(Ergänzendes Material)

https://doi.org/10.48440/wsm.2021.002
(Ergänzendes Material)

https://doi.org/10.5880/wsm.2021.002
(Ergänzendes Material)

Volltexte (frei zugänglich)
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Ziegler, M., Heidbach, O., Morawietz, S., Wang, Y. (2023): Manual of the Matlab Script FAST Calibration v2.4, (WSM Technical Report ; 23-02), Potsdam : GFZ German Research Centre for Geosciences, 45 p.
https://doi.org/10.48440/wsm.2023.002


Zitierlink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5024003
Zusammenfassung
The 3D geomechanical-numerical modelling aims at a continuous description of the stress state in a subsurface volume. The model is fitted to the model-independent stress data records by adaptation of the displacement boundary conditions. This process is herein referred to as model calibration. Depending on the amount of available stress data records and the complexity of the model the calibration can be a lengthy process of trial-and-error to estimate the best-fit boundary conditions. The tool FAST Calibration (Fast Automatic Stress Tensor Calibration) is a Matlab script that facilitates and speeds up this calibration process. By using a linear regression it requires only three test model scenarios with different displacement boundary conditions to calibrate a geomechanical-numerical model on available stress data records. The differences between the modelled and observed stresses are used for the linear regression that allows to compute the displacement boundary conditions required for the best-fit estimation. The influence of observed stress data records on the best-fit displacement boundary conditions can be weighted. Furthermore, FAST Calibration provides a cross checking of the best-fit estimate against indirect stress information that cannot be used for the calibration process, such as the observation of borehole breakouts or drilling induced fractures. In order to bridge the scale gap between a regional stress model and a local reservoir model, the multistage calibration procedure is applied where a local model is calibrated solely on the stress state provided by a regional model. FAST Calibration provides the necessary tools and guidelines. The script files are provided for download at http://github.com/MorZieg/FAST_Calibration. Tab. 0-1 gives an overview of the folder structure and input files with a short explanation.