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Geothermal Energy

Science – Society – Technology

Fig. 8 | Geothermal Energy

Fig. 8

From: Influence of extreme fracture flow channels on the thermal performance of open-loop geothermal systems at commercial scale

Fig. 8

Temporal evolution of the thermal front advance for cases 4 through 9. Interwell separation distance varies from 300 to 500 m along the x-axis (first row) and the y-axis (second row). For the set of panels in the first row, fluid circulation occurs from an injection well in the western sector to an extraction well in the eastern sector. Fluid circulation for all panels in the second row occurs from an injection well in the northern sector to a production well in the southern sector. Tnd represents the reservoir’s dimensionless temperature and Wsd represents the inter-well spacing. Columns depict thermal exchange state after 1 year of continuous operation. Image on the bottom right corner represents the up-scaled permeability distribution

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