Numerical Study on the Impacts of Fracture Distribution of Geothermal Reservoirs on Heat Extraction Efficiency
Year: 2025
Type: conference-paper
Abstract: In geothermal energy development, reservoir fracture distribution significantly affects heat extraction efficiency. In this paper, we employ a 2D thermo-hydro-mechanical (HTM) model to generate random fracture networks and evaluate heat extraction efficiency. We find that (1)excessive fracture intensity does not enhance heat extraction efficiency; (2)reasonably regulating fracture number and length, constructing a specific fracture network, and increasing injection-production well spacing benefit geothermal energy extraction and reservoir lifespan extension. These results provide theoretical support for reservoir modification and fracture network design, thereby advancing efficient geothermal energy development.
Authors: Fangchao Kang, Wendi Zhang, Shuqian Shen, Xiaoqing Lu, Kaiyi Chen
Institution: Guangdong University of Petrochemical Technology
Language: English
Field: Energy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4413242232