Two stages power generation test of the hot dry rock exploration and production demonstration project in the Gonghe Basin,northeastern Qinghai-Tibet plateau,China  

作　　者：Er-yong Zhang Dong-guang Wen Gui-ling Wang Xian-peng Jin Lin-you Zhang Hai-dong Wu Wen-shi Wang Cheng-ming Ye Wei Weng Kuan Li Jin-sheng Wu Xian-chun Tang Chong-yuan Zhang Qing-da Feng Sheng Lian Li-sha Hu Gui-lin Zhu Xing-long Xie Bin Wu Dan Wang Xue Niu Zhao-xuan Niu Dong-lin Liu Hui Zhang Wen-hao Xu Shu-qing Yao Li Yang 

机构地区：[1]Center for Hydrogeology and Environmental Geology Survey,China Geological Survey,Ministry of Natural Resources,Tianjin 300304,China [2]Institute of Hydrogeology and Environmental Geology,Chinese Academy of Geological Sciences,China Geological Survey,Shijiazhuang 050061,China [3]Institute of Exploration Techniques,Chinese Academy of Geological Sciences,China Geological Survey,Langfang 065000,China [4]Institute of Exploration Engineering,China Geological Survey,Ministry of Natural Resources,Beijing 100083,China [5]Institute of Exploration Technology,Chinese Academy of Geological Sciences,Chengdu 611734,China [6]Chinese Academy of Geological Sciences,China Geological Survey,Beijing 100037,China [7]Institute of Geomechanics,Chinese Academy of Geological Sciences,China Geological Survey,Beijing 100081,China [8]Geoscience Documentation Center,China Geological Survey,Ministry of Natural Resources,Beijing 100083,China

出　　处：《China Geology》2024年第3期409-421,共13页中国地质（英文）

基　　金：Funded by the“Investigation and Evaluation of the Hot Dry Rock Resources in the Guide-Dalianhai Area of the Gonghe Basin,Qinghai”(DD20211336,DD20211337,DD20211338);“Hot Dry Rock Resources Exploration and Production Demonstration Project”(DD20230018)of the China Geological Survey。

摘　　要：The Hot Dry Rock(HDR)is considered as a clean and renewable energy,poised to significantly contribute to the global energy decarbonization agenda.Many HDR projects worldwide have accumulated valuable experience in efficient drilling and completion,reservoir construction,and fracture simulation.In 2019,China Geological Survey(CGS)initiated a demonstration project of HDR exploration and production in the Gonghe Basin,aiming to overcome the setbacks faced by HDR projects.Over the ensuing four years,the Gonghe HDR project achieved the first power generation in 2021,followed by the second power generation test in 2022.After establishing the primary well group in the initial phase,two directional wells and one branch well were drilled.Noteworthy progress was made in successfully constructing the targeted reservoir,realizing inter-well connectivity,power generation and grid connection,implementing of the real-time micro-seismic monitoring.A closed-loop technical validation of the HDR exploration and production was completed.However,many technical challenges remain in the process of HDR industrialization,such as reservoir fracture network characterization,efficient drilling and completion,multiple fracturing treatment,continuous injection and production,as well as mitigation of induced seismicity and numerical simulation technology.

关 键 词：Power generation Hot dry rock(HDR) Enhanced geothermal system(EGS) Genesis mechanism Gonghe Basin Directional drilling Reservoir construction Circulation test Induced seismicity Clean energy exploration engineering 

分 类 号：TM619[电气工程—电力系统及自动化] P314[天文地球—固体地球物理学] TK529[天文地球—地球物理学]