GNSS data are recorded near Rittershoffen at ECOG, RITT, STUN and HATN stations and are provided by the operator ECOGI (ECOG, RITT) and EOST (STUN, HATN). Data format is Rinex. The stations are described :https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/GNSS-Stations See : https://cdgp.u-strasbg.fr/Obsnef-Gnss/situation.php for stations location and data availability

The EstOF network consists in 288 miniaturized seismic stations (Zland nodes, 1C, 10Hz) installed between August 25th 2014 and September 30th 2014 in the Outre-Forêt region (Alsace, France) around the deep geothermal sites of Soultz-sous-Forêts and Rittershoffen. A regular grid of 260 stations separated by ~1.4km forms the backbone of the network, which was completed by a denser array of 28 stations every ~400m around the Rittershoffen site. This data has been acquired in the framework of the LABEX ANR-11-LABX-0050-G-EAU-THERMIE-PROFONDE and benefits from a funding from the state managed by the French National Research Agency (ANR) as part of the ‘Investments for the Future’ program. It has also been funded by the EGS Alsace Grant from ADEME. The seismic equipment was deployed during the summer 2014 by the EstOF Team : J. Vergne, M. Bès de Berc, H. Blumentritt, N. Cuenot, C. Doubre, R. Dretzen, Z. Duputel, F. Engels, M. Grunberg, H. Jund, S. Lambotte, O. Lançon, M. Lehujeur, O. Lengliné, A. Maggi, V. Maurer, M. Schaming, J. Schmittbuhl, H. Wodling. Equipment and support was provided by the Fairfield Nodal company during the EstOF experiment. Details of the experiment and data analysis can be found in : Lehujeur, M., Vergne, J., Schmittbuhl, J., Zigone, D., Le Chenadec, A. and the EstOF Team (2018) - Reservoir imaging using ambient noise correlation from a dense seismic network. Journal of Geophysical Research, Solid Earth, 213, DOI:10.1029/2018JB015440. https://i.creativecommons.org/l/by-nc/4.0/88x31.png This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/).

GNSS data are recorded near Soultz-sous-Forêts at GPK1 and GPK2 stations and are provided by the operator GEIE EMC. Data format is Rinex. The stations are described (https://cdgp.u-strasbg.fr/geonetwork/srv/fre/catalog.search#/metadata/GNSS-Stations). See : https://cdgp.u-strasbg.fr/Obsnef-Gnss/situation.php for stations location and data availability

VSP acquired in EPS1 and GPK1 wells from September 15-17, 1993. Sources: P and S vibrators at several locations: A, D, E Run1: P@E/EPS1, S@E/GPK1 Run 2: P@D/EPS1, S@D/EPS1 Run 3: P@D/GPK1, S@D/GPK1 Run 4: P@D/GPK1, S-NS@A/GPK1, S-EW@A/GPK1, P@A/GPK1

VSP acquired in EPS1 and GPK1 wells from May 3-5, 1993. Sources: P and S vibrators at several locations: A2, A3, B1, B2, C3, C4, D1, D2. Run1: P@A3/EPS1, P@C3/GPK1, S-NS@A2/GPK1, S-EW@A2/GPK1 Run 2: P@C3/GPK1, P@A3/EPS1, S-NS@C4/EPS1, S-EW@C4/EPS1 Run 3: P@B2, S-NS@B1, S-EW@B1 Run 4: P@D1, S-NS@D2, S-EW@D2

Description of GNSS stations set up around geothermal sites in Alsace. One station must be commissioned by the operator and its data are public. See target station locations and data availability (https://cdgp.u-strasbg.fr/Obsnef-Gnss/situation.php).

The aim of the GeORG project (Geopotentials of the deep Upper Rhine Graben, https://www.geopotenziale.org/home/index_html) was to create a 3D model of the geological structure of the Upper Rhine Graben down to a depth of several kilometers. The project began in October 2008 and ended in December 2012. GeORG offers a complete geoscientific information base. Maps showing the deep structure and spatial distribution of geological layers and temperatures have been extracted. Geological cross-sections can be generated over the entire study area and in all directions. These show the stratigraphic position and stacking of layers in space. GeORG has created an information access platform for companies, public and private project developers and research organizations. The results are accessible to all at https://maps.geopotenziale.eu. Several products from the GeORG mapviewer around Soutz-sous-Forêts geothermal site are extracted.

The aim of the GeORG project (Geopotentials of the deep Upper Rhine Graben, https://www.geopotenziale.org/home/index_html) was to create a 3D model of the geological structure of the Upper Rhine Graben down to a depth of several kilometers. The project began in October 2008 and ended in December 2012. GeORG offers a complete geoscientific information base. Maps showing the deep structure and spatial distribution of geological layers and temperatures have been extracted. Geological cross-sections can be generated over the entire study area and in all directions. These show the stratigraphic position and stacking of layers in space. GeORG has created an information access platform for companies, public and private project developers and research organizations. The results are accessible to all at https://maps.geopotenziale.eu. Several products from the GeORG mapviewer around Soutz-sous-Forêts geothermal site are extracted.

During June/July 2000 a hydraulic stimulation program was conducted in the well GPK2 (https://cdgp.u-strasbg.fr/geonetwork/srv/eng/catalog.search#/metadata/SSF-GPK2) at the European Hot Dry Rock project, Soultz-sous-Forêts, France. The stimulation was performed over the openhole section of GPK2 from 4431 m measured depth (MD) to the bottom of the well at around 5084 m MD. A total of 27 800 m3 of water were injected. At the start of the stimulation 700 m3 of brine with a density of approximately 1.2 g/cc were injected in an effort to encourage downward growth of the stimulated region. The stimulation covered a period of 6 days. After a break of 7 days a post-fracturing, injection test was performed. Seismic monitoring continued for a further 11 days after the injection test (Dyer, B., 2001.Soultz GPK2 stimulation June/July 2000. Seismic monitoring report.). Dates of the different tests of the 2000 hydraulic program: - Stimulation test at GPK2: from 18:44 30/06/2000 to 16:33 06/07/2000. - Post-stimulation injection test at GPK2: from 10:09 13/07/2000 to 20:25 15/07/2000. The Episode contains several datasets which you can find further down the page in "Links".

After drilling GPK2 an extensive hydraulic program was performed in 1995 to test the well and the circulation with GPK1. The main tests were realized during June, July and August 1995. It consisted first of two injection tests at GPK2 in June. The injection tests revealed that the injectivity was too low to consider circulation between the two wells GPK1 and GPK2. A short term and a long term stimulation experiments were also performed in June at GPK2 to stimulate the fracture network. A total of 28000 m3 of fluid was injected during the long term experiment. Following the stimulations, a stepped post-fracturing injection test was realized to observe the results of the stimulations. Finally, three relatively short circulation experiments were performed in July and August by using GPK1 as production borehole and GPK2 as reinjection borehole. Dates of the different tests of the 1995 hydraulic programme: - First injection test at GPK2: from 11:26 11/06/95 to 01:50 12/06/95 - Second injection test at GPK2: from 11:56 12/06/95 to 23:11 12/06/95 - Short term stimulation experiment at GPK2: from 20:00 14/06/95 to 01:27 15/06/95 - Long term stimulation experiment at GPK2: from 10:24 17/06/95 to 16:03 28/06/95 - Stepped post-fracturing injection test at GPK2: from 08:08 01/07/95 to 20:02 02/07/95 - First circulation test between GPK1 and GPK2: from 08:35 09/07/95 to 21:32 24/07/95 - Second circulation test between GPK1 and GPK2: from 13:09 31/07/95 to 19:04 09/08/95 - Third circulation test between GPK1 and GPK2: from 04:50 16/08/95 to 19:19 20/08/95 Baumgärtner, J., Jung, R., Gérard, A., Baria, R. and Garnish, J., 1996.The European HDR project at Soultz-sous-Forêts: stimulation of the second deep well and first circulation experiments, Proceedings of the 21st Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California, January 22-24, 1996. Gérard, A., Baumgärtner, J., Baria, R. and Jung, R., 1997. An attempt towards a conceptual model derived from 1993-1996 hydraulic operations at Soultz, Proceedings of the NEDO International Geothermal Symposium, Sendai, Japan, 11-12 March 1997.