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Geothermal Energy

Science – Society – Technology

Fig. 7 | Geothermal Energy

Fig. 7

From: Monitoring cold water injections for reservoir characterization using a permanent fiber optic installation in a geothermal production well in the Southern German Molasse Basin

Fig. 7

Temperature gradients from DTS profile at the geothermal Schäftlarnstraße site. Subplot a shows estimated temperature gradients with vertically projected well trajectory and stratigraphy. Subplot b shows representative (rep.) DTS profiles from November 2019 to January 2020 averaged at over 6 h and with a moving average of 2 m with the wireline temperature log and the approximate thermal gradient inside the reservoir. (1) and (2) mark zones where the DTS temperature deviates from the proposed gradient

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