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Fig. 12 | Geothermal Energy

Fig. 12

From: New results on the gravity monitoring (2014–2017) of Soultz-sous-Forêts and Rittershoffen geothermal sites (France)

Fig. 12

Soultz-sous-Forêts maps of interpolated gravity double difference in µGal measured the 24th of July 2014 (a) and the 4th of July 2017 (b) before and after the beginning of the production, respectively. The geothermal energy exploitation began on the 24th of June 2016. The same interpolation color scale is used for the two maps. The station codes are indicated in red and the double differences in blue. The isolines values are written in black. The wells are represented in blue with their open-hole in red: GPK3 and GPK4 wells are the injection wells and GPK2 well is used for the production. We superimposed also the 2017 cumulated induced seismicity epicenters on the second map

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