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Fig. 3 | Geothermal Energy

Fig. 3

From: Temperature log simulations in high-enthalpy boreholes

Fig. 3

a The change of BHT within a shut-in period of 20 days under four different heat transfer coefficients (h) in the borehole. b The Horner-plots of the four temperature curves shown in a [the x-axis value is the opposite of the Horner dimensionless time (Eq. 1), the minimum x-axis value of the temperature data on the curves corresponds to when ts = 1 h, the maximum x-axis value corresponds to when ts = 140 days]

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