In this paper we investigated fluid flow and thermal energy transport associated with multi-stage hydraulic fracturing at Utah FORGE reservoir development. First a multistage fracturing of the injection well is simulated to assess the potential flow path between the injection and production wells. Then, reservoir performance is analyzed using a 3D reservoir model for heat transport allowing for steam-water phase change. The numerical approaches are first calibrated using a lab-scale EGS experiment with fracturing, fluid circulation, and thermal transport to clarify the role of fracture flow, heat exchange and physical properties of fluid and rock. Then, numerical simulations are performed to illustrate the pressure and temperature change by water injection and production in the presence of hydraulic fracture clusters.

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