1State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, China
2Key Laboratory of Deep Earth Science and Engineering, Ministry of Education, Sichuan University, China
*Corresponding author: Gan Feng, State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, Chengdu 610065, China. Key Laboratory of Deep Earth Science and Engineering (Sichuan University), Ministry of Education, Sichuan University, Chengdu 610065, Sichuan, China
Submission: September 02, 2022; Published: September 23, 2022
ISSN : 2578-031XVolume5 Issue1
The Hot Dry Rock (HDR) geothermal has huge reserves, clean and environmental protection, and is widely recognized as a renewable energy source with great development potential. Hot Dry Rock contains little or no fluid and is usually developed using Enhanced Geothermal System (EGS) technology. The efficiency of geothermal energy extraction depends on the fracture-making capacity and heat transfer capacity of reservoir and is directly related to the fracture-network structure transformation of reservoir. At present, the reservoir modification mainly includes hydraulic fracturing, chemical stimulation and thermal stimulation. However, how to increase the heat exchange area, increase the heat extraction channel, and stabilize the extraction of geothermal energy are still the challenges of efficient geothermal exploitation.
Keywords: Enhanced geothermal system; HDR; Reservoir stimulation; Hydraulic fracturing
Abbreviations:HDR: Hot Dry Rock; EGS: Enhanced Geothermal System