Results 1 to 10 of about 331 (154)

UNet–Based Temperature Simulation of Hot Dry Rock in the Gonghe Basin

Energies, 2022
Hot dry rock (HDR) geothermal energy, as a clean and renewable energy, has potential value in meeting the rapid demand of the social economy. Predicting the temperature distribution of a subsurface target zone is a fundamental issue for the exploration ...
Wanli Gao, Jingtao Zhao, Suping Peng
doaj   +3 more sources

Overview on hydrothermal and hot dry rock researches in China

China Geology, 2018
: Geothermal energy is a precious resource, which is widely distributed, varied, and abundant. China has entered a period of rapid development of geothermal energy since 2010.
Gui-ling Wang, Wei Zhang, Feng Ma, Wen-jing Lin, Ji-yun Liang, Xi Zhu   +5 more
doaj   +3 more sources

Investigation of the cutting effects on high-temperature granite based on cerchar abrasivity test [PDF]

Scientific Reports
The high-temperature rock drilling is a key process in the exploitation of the hot-dry-rock (HDR) geothermal energy. Understanding the abrasive characteristics of HDR is critical for drilling efficiency and cost.
Qingshuai Yang, Hongwei Zhang, Xusheng Rui, Tianhua Yang, Ximin Song   +4 more
doaj   +2 more sources

Study on the failure mechanism of high-temperature granite under two cooling modes [PDF]

Scientific Reports
In the geothermal development of hot dry rock (HDR), both the drilling of the wellbore and the heat exchange of the heat reservoir involve the effects of different cold and hot conditions on the high-temperature rock mass.
Chun Li, Gan Feng, Xinran Zhang, Chunwang Zhang, Yaoqing Hu, Tao Meng   +5 more
doaj   +2 more sources

Thermal Performance of Deep Borehole Heat Exchangers (DBHEs) Installed in a Groundwater-Filled Hot Dry Rock (HDR) Well in Qinghai, China

Energies
Deep borehole heat exchangers (DBHEs) have been widely used for extracting geothermal energy in China. However, the application of this technology in an open well with high temperature remains unknown. In this paper, the thermal performance of a DBHE installed in a groundwater-filled hot dry rock (HDR) well in the Gonghe Basin of Qinghai Province in ...
Zhang, Qixing, Lu, Feiyang, Huang, Yong, Tan, Liwei, Luo, Jin, Duan, Longcheng   +5 more
openaire   +4 more sources

Failure Behavior of Hot-Dry-Rock (HDR) in Enhanced Geothermal Systems: Macro to Micro Scale Effects [PDF]

Geofluids, 2020
Evaluations of the mechanical properties and failure modes of granite at high temperatures are important issues for underground projects such as enhanced geothermal systems and nuclear waste disposal. This paper presents the results of laboratory experiments that investigated the physico-mechanical failure behavior of granites at high temperatures. The
Hongwei Zhang, Zhijun Wan, Derek Elsworth   +2 more
openaire   +2 more sources

A study of the application of turbine coring drilling technology to hot dry rock drilling

Shuiwen dizhi gongcheng dizhi, 2021
Exploration of hot dry rock in China has just started. In order to accurately evaluate the amount of hot dry rock geothermal resources in China, high-quality hot dry rock drilling cores are needed.
Xianfeng TAN, Jingguang WANG, Changliang ZHAO, Wenshi WANG, Wei WENG, Longchen DUAN   +5 more
doaj   +1 more source

Evaluation methods and influence factors of heat extraction performance in hot dry rock reservoir under multi-field coupling

Energy Exploration & Exploitation, 2023
How to improve the heat extraction performance of HDR (hot dry rock) is one of the most concerned problems in HDR extraction. The key is to take a reasonable method to evaluate the heat extraction performance of hot dry rock and find out the main factors
Kai Zhao, Xiaoyun Wang, Wenjie Song, Shuyi Shi, Zhihui Xu, Liangbin Dou, Wei Gao   +6 more
doaj   +1 more source

Genesis and occurrence models of hot-dry geothermal resources in Guangxi

地质科技通报, 2022
As a kind of clean and renewable geothermal resource, dry hot rock (HDR) contains a huge potential for geothermal energy, which is of great development prospect and research value.
Minghang Sun, Qizuan Zhang, Demin Liu, Xingting Sun, Shan Lin, Xiangke Wu, Guoke Liang, Yukun Li, Yanwu Guan, Yefei Li   +9 more
doaj   +1 more source

Induced Seismicity and Detailed Fracture Mapping as Tools for Evaluating HDR Reservoir Volume

Energies, 2021
The main goal of this paper was to estimate the heat exchange rock mass volume of a hot dry rock (HDR) geothermal reservoir based on microseismicity location. There are two types of recorded microseismicity: induced by flowing fluid (wet microseismicity)
Elżbieta Węglińska, Andrzej Leśniak
doaj   +1 more source