Stress characterization and temporal evolution of borehole failure at the Rittershoffen geothermal project

Azzola, Jérôme; Valley, Benoît; Schmittbuhl, Jean; Genter, Albert

doi:https://doi.org/10.5194/se-10-1155-2019

Articles | Volume 10, issue 4

https://doi.org/10.5194/se-10-1155-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/se-10-1155-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 10, issue 4

Research article

|

22 Jul 2019

Research article |

| 22 Jul 2019

Stress characterization and temporal evolution of borehole failure at the Rittershoffen geothermal project

Jérôme Azzola, Benoît Valley, Jean Schmittbuhl, and Albert Genter

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Final revised paper (published on 22 Jul 2019)
Preprint (discussion started on 09 Apr 2019)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Stress Characterization and Temporal Evolution of Borehole Failure at the Rittershoffen Geothermal Project', Francois Cornet, 18 Apr 2019
- AC1: 'Response to Interactive comment on Solid Earth Discuss – manuscript “Stress Characterization and Temporal Evolution of Borehole Failure at the Rittershoffen Geothermal Project” by Jérôme Azzola et al., se-2019-72', Jérôme Azzola, 29 Apr 2019
RC2: 'Comment on “Stress Characterization and Temporal Evolution of Borehole Failure at the Rittershoffen Geothermal Project” by Jérôme Azzola et al.', Anonymous Referee #2, 30 Apr 2019
- AC2: 'Response to Interactive comment on Solid Earth Discuss – manuscript “Stress Characterization and Temporal Evolution of Borehole Failure at the Rittershoffen Geothermal Project” by Jérôme Azzola et al., se-2019-72', Jérôme Azzola, 04 Jun 2019

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Jérôme Azzola on behalf of the Authors (07 Jun 2019) Author's response Manuscript

ED: Referee Nomination & Report Request started (12 Jun 2019) by Federico Rossetti

RR by Francois Cornet (14 Jun 2019)

ED: Publish subject to technical corrections (17 Jun 2019) by Federico Rossetti

ED: Publish subject to technical corrections (17 Jun 2019) by Federico Rossetti (Executive editor)

AR by Jérôme Azzola on behalf of the Authors (21 Jun 2019) Author's response Manuscript

Short summary

In projects based on enhanced geothermal system (EGS) technology, knowledge of the in situ stress state is of central importance to predict the response of the rock mass to different stimulation programs. We propose a characterization of the in situ stress state from the analysis of ultrasonic borehole imager (UBI) data acquired at different key moments of the reservoir. We discuss a significant stress rotation at depth and the absence of a significant change in the stress magnitude.