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Geothermal Energy

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Fig. 14 | Geothermal Energy

Fig. 14

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. 14

Comparison of flowmeter injection profile and DTS and DAS response during Inj2. Transparent lines are raw DTS data, sharp lines are moving average over 10 m. a Flowmeter profile with five DTS profiles in the first hour of cold water injection over from 2750 m MD to TD. b Zoomed to top of the reservoir. Flowmeter profile is shown together with three DTS profiles of injection start, each 20 min apart; and DAS strain at 1 min and 1.5 min after injection start

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