Doomsday Bunker Upgrade

Deep geothermal is an emerging energy technology that began to be researched in the Commonwealth around the 1970s.

The main principle is to guide the heat contained in the dense and impermeable high-temperature rock at a depth of 2,000 to 3,000 meters underground to the surface through drilling, water injection and other means, and apply it to heating, power generation and other fields.

This technology is favored for its low cost, clean and recyclable and many other advantages. It has been promoted and applied in many countries with rich geothermal resources. However, limited by the speed of technological development, this technology will not last until this century. A more mature utilization system has been formed.

"The utilization of deep geothermal energy in my country started relatively late, and it has formed a relatively considerable scale after the technology has matured in recent years." The person in charge seems to know a lot about this area, and when he talked to Chen Xin, he was also eloquent: "The first few days A new national district in Chang'an used this kind of deep geothermal well as a heating method. It is a successful case of my country's utilization of deep geothermal resources. After that, high-temperature hot dry rock was produced in Qinghai. my country is at the forefront of the world in this area. "

"Has our country only started to utilize deep geothermal heat in these years? But I remember that when I was still in elementary school, the Yangba Well in Tibet should have been built for geothermal power generation, right? Isn't that the development of deep geothermal resources?" Chen Xin was a little strange , In his impression, Yang Bajing was already very famous when he was still in elementary school.

Faced with this question, the person in charge shook his head with a smile, and then explained: "Yangbajing in Tibet Province is a medium-temperature shallow geothermal source, and the geothermal resources there are basically ready-made, and there is no need to drill deep wells or anything. However, the geothermal power generation in Yangbajing is indeed very early. In the 1990s, the megawatt-level geothermal power generation was realized, which is also a famous case of geothermal development.”

"It turns out that shallow geothermal and deep geothermal are really not the same thing." Chen Xin nodded clearly, with a sense of sudden realization, but he continued to ask: "The high-temperature dry-hot rock produced in Qinghai, this Is the available value high? Is the country's technology mature in this regard?"

Chen Xin is very concerned about this issue. If the country has ready-made technology, then his idea of ​​building energy towers to build greenhouses or even district heating fields will be easier to achieve.

"Haha, you're just asking for ideas!" For this question, the person in charge seemed to be scratched to the itch, and the whole person got excited, adjusted his sitting posture, and took a sip of wine, obviously planning to have a relationship with Chen Xin. Talk well.

Seeing this, Chen Xin also made a gesture of listening carefully, wanting to learn more about this knowledge.

"For many years, the total amount of geothermal utilization in my country has been the world's largest, but it is mainly concentrated in the utilization of shallow, medium and low temperature geothermal resources. For deep geothermal resources, on the one hand, there is a lack of relevant technologies, and on the other hand, there is insufficient resource exploration. Until recently, these It took years for the country to make many breakthroughs in this area." Speaking of which, the person in charge had some sighs on his face, not only sighing: "Geothermal resources are a good thing! Its application cost is much lower than that of solar energy and wind energy. And clean and environmentally friendly, huge reserves!

Especially in my country, the resources of hot dry rock at a depth of 3 to 10 kilometers in the mainland are about 856 trillion tons of standard coal, accounting for about 1/6 of the world's resources. It is a pity that my country has not conducted research on this energy before. It was not until the discovery of hot dry rock resources in the Qinghai-Tibet Plateau that it filled the gap that my country has not yet discovered hot dry rock resources through exploration. "

"If that's the case, why didn't the country consider large-scale mining of hot dry rocks and use deep geothermal heat to build shelters to avoid this crisis?" It is easy and the application cost is low. It stands to reason that the country should mine on a large scale. Why is it still burning coal?

Regarding this question, the person in charge smiled wryly: "Don't you want to be a country? The southern part of the Qinghai-Tibet Plateau accounts for about 1/5 of the total resources of dry and hot rocks in mainland China. The country will build planting and breeding areas on the Qinghai-Tibet Plateau. The plan is The use of geothermal heat for heating and power generation, but the construction environment on the plateau is too harsh, and the plan is very slow.

Moreover, the hot dry rock resources are mainly distributed in the Qinghai-Tibet Plateau, Songliao Basin, Bohai Bay Basin, and the southeast coast. Now, in addition to the Qinghai-Tibet Plateau, the Songliao Basin, the Bohai Bay Basin and the southeast coast have all been raised. The sea level is blocked by ice. In this case, it is difficult to develop and apply deep geothermal resources on a large scale. "

Hearing the words of the person in charge, Chen Xin also nodded clearly. The sea water has been poured into Dongting Lake, and Shandong Peninsula has become Shandong Island. Under such circumstances, it is obviously not practical to develop geothermal resources in coastal areas. of.

However, although there are many difficulties in this regard, the prospect of deep geothermal utilization is still broad.

Chen Xin thought about it for a while and said, "Since the country has the technology in this area, it shouldn't be a problem for me to use geothermal resources to build a greenhouse, right?"

"It's really hard to say." The person in charge shook his head and filled Chen Xin's glass with wine before continuing: "The deep geothermal technology currently applied by the country is mainly used for the development of hot dry rocks, which means An impermeable rock formation that contains no or small amounts of fluid.

Specifically, by injecting water into deep wells to open up fissures, a planar artificial dry-hot rock thermal storage structure is formed, and heat is extracted by recovering high-temperature water and steam. This technology has requirements for the geological structure. In places like Hunan Province, groundwater resources are too rich. If you want to exploit deep geothermal resources, technical changes must be made. There are many problems in this! "

"Let me solve the technical problems. As long as I can put up the shelf, I can make it practical." Chen Xin didn't think it was a problem for this problem.

With the backing of the system, it is not difficult to mine deep geothermal energy.

"I forgot, Mr. Chen, what you are best at is technical improvement!" The person in charge laughed and patted his head for fear, and then made a promise: "Since you have such an idea, Mr. Chen, I am naturally willing to fully support it. After that, I will report this situation with the higher authorities, and try to set up a pilot program here. At that time, I will need Mr. Chen to improve the technology.

If this can be done, the development technology of deep geothermal resources can be promoted on a large scale, which is a great thing for the benefit of the country and the people! "

"Then I'll wait and see!" Chen Xin raised his glass and touched the person in charge again.

According to the information I have found, there are indeed very few development and applications in hot dry rock in my country. Large-scale hot dry rock resources were discovered in Qinghai in 2016, and it has been blank before.