Determination of Hydraulic Properties of a Large Self-Propped Hydraulic Fracture in the Geothermal Research Borehole Horstberg Z1 in the Northwest German Basin

<div>Calculated pressure profiles and calculated flow rate profiles in the Detfurth (red), the fracture (blue), and the Solling (green) at the end of the injection period t<sub>e</sub> = 18 h for the 2 limiting fracture lengths 2x<sub>f</sub> and T<sub>D</sub> = 1.5·10<sup>-14</sup> m<sup>3</sup>.</div>

Geofluids

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Figure 7

Figure 7: Determination of Hydraulic Properties of a Large Self-Propped Hydraulic Fracture in the Geothermal Research Borehole Horstberg Z1 in the Northwest German Basin 

Figure 7 | Determination of Hydraulic Properties of a Large Self-Propped Hydraulic Fracture in the Geothermal Research Borehole Horstberg Z1 in the Northwest German Basin 