Numerical Simulation of Temperature Recovery in Dual-Well Enhanced Geothermal Systems

 

1. Introduction

Enhanced Geothermal Systems (EGS) represent a promising pathway for sustainable and continuous renewable energy generation. Understanding the natural temperature recovery of geothermal reservoirs after operational shutdown is crucial for evaluating long-term performance and reservoir resilience. This research introduces a numerical simulation framework to investigate post-shutdown thermal regeneration in dual-well geothermal systems, offering valuable insights into energy sustainability, system optimization, and future geothermal deployment strategies.

2. Numerical Modeling Methodology

The numerical simulation approach employed in this study integrates heat transfer equations, reservoir properties, and fluid flow dynamics to model temperature evolution after system shutdown. Advanced computational techniques enable accurate prediction of thermal recovery rates and spatial temperature distribution, making the model a reliable tool for geothermal reservoir assessment and performance forecasting.

3. Dual-Well Enhanced Geothermal System Dynamics

Dual-well configurations play a significant role in geothermal energy extraction efficiency. This research examines how injection and production well interactions influence heat depletion and recovery patterns. The study highlights the importance of well spacing, reservoir permeability, and operational history in determining post-shutdown thermal behavior.

4. Reservoir Temperature Recovery Characteristics

The analysis reveals that natural temperature recovery is governed by conduction-dominated heat transfer from surrounding rock formations. The results demonstrate how reservoir depth, thermal conductivity, and initial extraction intensity affect recovery timelines, providing essential guidance for sustainable geothermal reservoir management.

5. Implications for Sustainable Geothermal Operations

Understanding temperature recovery characteristics allows operators to design optimized shutdown and restart strategies that extend reservoir lifespan. This research supports improved decision-making for long-term geothermal utilization, minimizing thermal degradation while maximizing renewable energy output.

6. Future Research and Energy Applications

The findings open avenues for future research on coupled thermo-hydro-mechanical modeling and real-field validation studies. Insights from this work contribute to advancing geothermal technology, supporting global clean energy goals, and strengthening the role of geothermal systems in the renewable energy transition.


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