20000 meters underground, containing "endless energy" that can be used by humans for 2.3 billion years? The United States is developing

Tech 2023-07-07 18:58:56 Source: Network

From ancient times to the present, in the numerous wars initiated by humans, the issue of "energy grabbing" has always been the core that cannot be separated. However, the rapid development of a country today inevitably depends on having sufficient energy supply

From ancient times to the present, in the numerous wars initiated by humans, the issue of "energy grabbing" has always been the core that cannot be separated. However, the rapid development of a country today inevitably depends on having sufficient energy supply.

Imagine that all imported energy of the country will be cut off, science and technology, military affairs, aerospace will be restricted, and even the people's food, clothing, housing and transportation will be affected. Take petroleum as an example, its refined products mainly include gasoline, kerosene, diesel, lubricating oil, paraffin, asphalt, plastic raw materials, etc. An ordinary person's life will consume nearly 8500 kilograms of oil in "food, clothing, housing and transportation".

If there is a shortage of energy, even daily 24-hour power supply is a problem. Moreover, many of the energy on the earth belongs to Non-renewable resource, which is used a little less, or some of the energy is formed very slowly, perhaps for thousands or even tens of thousands of years.

However, surprisingly, 20 kilometers below the surface, there is an endless energy source that can be used by all humanity for 2.3 billion years! And it is rumored that the United States has already taken the lead in the world, what is this really about?

We all know the principle of "boiling water". After using energy to heat the cold water, the cold water turns into steam. After entering the engine set, the Steam engine will continue to provide power to the turbine motor from the energy source. The "endless energy" mentioned in this article is the underground heat energy. Scientists once conducted an experiment in the Italian Radrillo geothermal power station to successfully transmit the underground heat energy, This experiment shows that people can use underground heat energy to boil water and generate electricity for society continuously. Therefore, underground heat energy, like wind energy, Tidal power and solar energy, is defined as clean energy.

Considering the cheapness, cleanliness, and storage of underground thermal energy, the United States has long attached great importance to it. According to the Daily Mail, QuaiseEnergy is developing a microwave drill bit that can penetrate 20 kilometers underground. Once successful, the United States will have sustainable underground thermal energy for about 2.3 billion years. For the short lifespan of humans, calling it "endless energy" is not an exaggeration.

Although the surface temperature is cold, the interior of the earth is indeed a "Melting pot". The temperature of the core is high enough to 6000 degrees. The more heat reaches the surface, the more serious the loss will be. However, there are exceptions in some areas of the earth, such as the natural hot spring mouth. The nearest place of the rock slurry reservoir of Yellowstone Caldera in the United States is only 5 kilometers from the ground. Therefore, there are more than 10000 hot springs in Yellowstone Park, as well as Natural landscape such as Geyser, steam pools, and blowholes, These are collectively referred to as geothermal anomaly areas.

The heat energy of the Earth comes from the decay of magma and other radioactive substances inside. According to scientists' speculation, the Earth has existed for 4.5 billion years, and the internal nuclear elements have completed two-thirds of the decay process. Based on the remaining one-third, it is speculated that the Earth can continue to release heat for 2.3 billion years.

In addition to the United States, China also has a considerable amount of geothermal reserves. The overall terrain of our country is high in the west and low in the east, and the terrain has significantly increased from the central and western regions. This is where these Eurasian plates rise and sink, containing huge geothermal resources.

At present, China's proven geothermal energy accounts for 7.9% of the total global energy, which is equivalent to 462.65 billion tons of coal in conversion, such as the Yangbajing geothermal field in Tibet, the geothermal field in Tengchong, Yunnan, and Taiwan, China Province, China, which is located in the Pacific Rim volcanic Seismic zone. These places all have good high temperature heat energy utilization rates.

From 1970 to 1977, 7 locations in China had a total installed capacity of 1336 kilowatts for low-temperature geothermal power generation and 1000 kilowatts for high-temperature geothermal power generation.

As of 2021, China's direct utilization of geothermal energy has accounted for 43.4% of the world's total utilization, mainly used for power generation, heating, healthcare, hot spring bathing, planting and breeding, tourism, and real estate development.

However, it is easy to understand that the more geothermal energy goes down, the higher the mining depth needs to be. According to the burial depth, the shallow Geothermal energy is less than 200 meters deep, the medium deep Geothermal energy is between 200 meters and 300 meters deep, and the Geothermal energy with a depth of 200 to 3000 meters and the dry hot rock with a depth of more than 3000 meters underground have the deep Geothermal energy.

At present, the global shallow geothermal energy is almost exhausted. In the future, the main trend is to exploit deep Geothermal energy. However, with the increase of depth, the underground temperature suffered by workers will also rise. The main causes include the heat release of surrounding rock of the shaft, air self compression, electromechanical and electric equipment, mineral oxidation, and mine hot water.

If the human body works in a high temperature environment for a long time, it will certainly be unbearable for the body. The current solution is to inject cold water to absorb the heat energy between the rock walls. When the water temperature rises, it will be directed to the ground, and then heat energy will be extracted through heat pumps and heat exchange stations. After that, it will continue to operate in cold water cycle above. This way is undoubtedly good, but if the depth is enough, it will be even more beautiful, So the key to extracting geothermal energy is still depth, otherwise the United States wouldn't have invested so much effort in developing microwave drills.

Excluding surface weathering, the hardness of the rocks below cannot be ignored, and the average thickness of the surface is 17 kilometers. The temperature generated by the rapid friction between the drill bit and the rock, as well as the underground temperature, can damage the structure of the drill bit and reduce its lifespan. Therefore, the key to the problem lies in the "drill bit".

In 1970, the Soviet Union began implementing the "Dig Through the Earth" plan. For the first time, the drill pipe was stuck at a depth of 7000 meters, and after replacement, the drilling depth reached 12000 meters, which was already 1983.

After digging 12000 meters underground, the Soviet Union couldn't dig anymore. After a year of renovation, they dug again. From 1984 to 1994, they worked hard for a full 10 years, and the drilling depth only increased by 226 meters. Even if Qatar and Russia later broke records again, the depth of the deepest well in the world still exceeded 13000 meters. This is because rocks over 10000 meters deep, under billions of years of enormous pressure, have a hardness similar to steel, No matter how hard a metal drill bit is, it is difficult to break through this layer of constraints.

The United States naturally understands this and has taken a different approach. QuaiseEnergy Technology believes that as long as the drill bit does not come into contact with the rock, there will be no wear and fracture. So how can drilling be done?

QuaiseEnergy Technology has developed a "microwave drill bit" that can use ultrasonic high-frequency rotary impact technology to shatter rocks when the metal drill bit is no longer able to penetrate underground obstacles. The vibration amplitude has increased by 77.65%, and ultrasonic waves greater than 20000 Hz have strong penetration power. The concentrated explosive sound energy is enough to blast hard deep rocks, so that the metal drill bit will not break and can continue to drill down, Reach the desired depth.

However, every 100 meters underground, the temperature will increase by 2 degrees. QuaiseEnergy will challenge the limit of 20000 meters underground. The temperature here is 400 degrees. Once successful, the United States can continuously extract huge heat energy to help social development. If all mankind develop Geothermal energy together, the total reserves of geothermal energy can be used by all mankind for 2.3 billion years. It is conceivable that this huge clean energy is desirable for all countries.

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