News from our newspaper (reporter Geng Jiankuo, Chen Yuanqiu) A
few days ago, the key technology research and demonstration project of dry hot rock development in
Matouying
Uplift Area of Tangshan City organized and implemented by Hebei Coal Field Geology Bureau realized the experimental power generation of dry hot rock.
This is the first time that my country has achieved experimental power generation on dry hot rock, laying a solid foundation for the development and utilization of dry hot rock, a clean energy source.
On June 28, the results conference of the key technology integration research and demonstration project for the development of hot dry rock geothermal resources in the Matouying Uplift Area of Tangshan jointly hosted by the Hebei Bureau of Coal Geology and the People's Government of Tangshan City was held in Tangshan.
At this press conference, Wu Qiang, academician of the Chinese Academy of Engineering, released the above results.
Dry hot rock is a kind of storage medium for the internal heat of the earth, and it is an internationally recognized clean energy.
In layman's terms, hot dry rock resources are the heat that exists in the rocks, and are known as "warmth from Mother Earth."
Hot dry rock has the characteristics of large amount of resources, wide distribution, and long sustainable use time. It is an important direction for the development and utilization of geothermal resources in the future.
In 2019, the hot dry rock exploration project organized and implemented by the Hebei Coalfield Geology Bureau drilled the shallowest buried hot dry rock in the Beijing-Tianjin-Hebei region at a depth of 3965 meters in the Tangshan Seaport Economic Development Zone, realizing the dry hot rock in the central and eastern regions of my country. A major breakthrough in prospecting.
It is estimated that within 4,500 meters and 195 square kilometers, the prospective resources are equivalent to 7.8 billion tons of standard coal.
A treasure house of geothermal energy reserves with large reserves, high temperature and shallow burial has been unveiled.
However, for a long time, due to the limitations of hot dry rock exploration site selection, high-efficiency drilling and completion technology, reservoir modification, high-efficiency power generation and other fields, it has been difficult to achieve large-scale and commercial development and utilization of hot dry rock, resulting in this clean Energy has not been developed for a long time, and the huge underground treasure house is difficult to use effectively.
In order to break through major technical problems in the development and utilization of hot dry rocks, since 2020, the Hebei Bureau of Coalfield Geology has focused on major national needs, coordinated and integrated multiple resources, and united with Kailuan Group, Guangzhou Institute of Energy Research, Chinese Academy of Sciences, Tangshan Sanyou Salt Chemical Co., Ltd., and Hebei Zhongle Energy Technology Co., Ltd. and other units have carried out key technology integration research and demonstration key research and development projects for dry hot rock development in Matouying Uplift Area, Tangshan City, Hebei Province, implemented key core technology research and achieved significant results.
Zhang Guishuang, member of the party group and deputy director of the Hebei Bureau of Coal Geology, introduced that the principle of power generation from hot dry rock resources is to convert underground thermal energy into electrical energy through engineering and technical means.
After review by experts, it is believed that the project has completed the performance test of the hot dry rock power generation system, realizing the first experimental power generation of hot dry rock in my country.
The establishment of a hot dry rock drilling and completion technology system and a hot dry rock reservoir reconstruction technology system have laid a solid foundation for the development and utilization of hot dry rock in my country in the future.
Experts at the meeting believed that the success of the project is of great significance, the technology used is advanced, the application prospects are broad, and it will play a good role in demonstrating nationwide.
Wu Qiang, academician of the Chinese Academy of Engineering, said that environmental protection pressure in the Beijing-Tianjin-Hebei region is huge, and the demand for clean energy is particularly urgent.
Especially in the context of promoting carbon peaking and carbon neutrality, these breakthroughs in hot dry rock energy utilization technology will play an active role in improving the clean energy supply system in the Beijing-Tianjin-Hebei region and even the whole country, and achieving carbon peaking and carbon neutrality. The driving role of the.
Wang Dahu, Secretary of the Party Group and Director of the Hebei Coalfield Geology Bureau, said that in the next step, the Hebei Coalfield Geology Bureau will build on the results of the project and rely on the local advantages and demand advantages to plan the construction of a national-level dry-hot rock development and research demonstration base. Actively promote hot dry rock power generation, heating, industrial utilization, etc., provide technical support for the large-scale and commercial development and utilization of hot dry rock, play a leading role in demonstration and lead research, and promote carbon peaking and carbon neutrality in clean energy exploration and utilization. To make new and greater contributions.