Articles | Volume 15, issue 8
https://doi.org/10.5194/se-15-1047-2024
https://doi.org/10.5194/se-15-1047-2024
Research article
 | 
23 Aug 2024
Research article |  | 23 Aug 2024

Stress state at faults: the influence of rock stiffness contrast, stress orientation, and ratio

Moritz O. Ziegler, Robin Seithel, Thomas Niederhuber, Oliver Heidbach, Thomas Kohl, Birgit Müller, Mojtaba Rajabi, Karsten Reiter, and Luisa Röckel

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Cited articles

Aadnoy, B. S. and Bell, J. S.: Classification Of Drilling-induced Fractures And Their Relationship To In-situ Stress Directions, The Log Analyst 39 (06), Paper Number: SPWLA-1998-v39n6a2, 1998. a, b, c
Ahlers, S., Hergert, T., and Henk, A.: Numerical Modelling of Salt-Related Stress Decoupling in Sedimentary Basins – Motivated by Observational Data from the North German Basin, Geosciences, 9, 19, https://doi.org/10.3390/GEOSCIENCES9010019, 2018. a
Ahlers, S., Röckel, L., Hergert, T., Reiter, K., Heidbach, O., Henk, A., Müller, B., Morawietz, S., Scheck-Wenderoth, M., and Anikiev, D.: The crustal stress field of Germany: a refined prediction, Geoth. Energ., 10, 1–32, https://doi.org/10.1186/s40517-022-00222-6, 2022. a
Azzola, J., Valley, B., Schmittbuhl, J., and Genter, A.: Stress characterization and temporal evolution of borehole failure at the Rittershoffen geothermal project, Solid Earth, 10, 1155–1180, https://doi.org/10.5194/se-10-1155-2019, 2019. a
Barton, C. A. and Zoback, M. D.: Stress perturbations associated with active faults penetrated by boreholes: Possible evidence for near‐complete stress drop and a new technique for stress magnitude measurement, J. Geophys. Res.-Solid, 99, 9373–9390, https://doi.org/10.1029/93JB03359, 1994. a, b, c
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Short summary
The rotation of the principal stress axes in a fault structure because of a rock stiffness contrast has been investigated for the impact of the ratio of principal stresses, the angle between principal stress axes and fault strike, and the ratio of the rock stiffness contrast. A generic 2D geomechanical model is employed for the systematic investigation of the parameter space.
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