How ancient Chinese used bamboo to extract natural gas; 中国古代最拿得出手的黑科技，竹竿钻井超千米，不亚于四大发明
From: https://www.bilibili.com/video/BV1sG41177ED/?spm_id_from=333.1007.tianma.5-3-19.click As the basis of modern economy, drilling technology was initially mastered by China in the end of the Warring States period around 200 BC. After a long period of development, the ancient Chinese were able to drill Wells more than 1,000 meters deep using only bamboo poles. During the Ming and Qing Dynasties, they also used this technology to extract 30 billion cubic meters of natural gas. China was way ahead of the rest of the world in terms of technology at the time. So how did the ancient Chinese drill with bamboo sticks, and how did this dark technology work? Unlike today, the ancient Chinese did not drill for oil, but for salt. As we all know, salt is very much involved in our daily lives, not only to flavor our food, but also to help maintain our bodies, and as a food preservative. More than 5,000 years ago, ancient Chinese living in coastal areas began to extract sea salt by boiling it. In addition, they also mastered the technique of making salt by first introducing seawater into salt pans. The sun and wind then evaporate the water until the salt is naturally sucked out, a technique known chemically as precipitation. However, salt was a rare resource for ancient Chinese living in the inner regions. During the Warring States Period, around 250 BC, the people of Sichuan dug China's first salt well. Below the salt well is salty water, about 50 grams of salt per liter of drinking water, which they boil and evaporate to get the salt. By about 10 A.D. 50, Chinese salt production technology had a qualitative leap, from the original to digging Wells to drilling Wells. Percussive drop drilling technology is also initiated in horizontal space. What are the advantages of the percussion drilling technology in ancient China? To put it simply, the drill bit is made of iron, and the drill pipe is referred to as bamboo. At the beginning of the construction, one or more people stand on the wooden frame, lift the drill bit by about 1 meter through the principle of leverage, and then break the rock through the kinetic energy of the drill bit through free fall. The technique was developed and subsequently improved, with the ancient Chinese using lighter and thinner bamboo tethers instead of bamboo poles to drill deeper and deeper. By 1700, 300–400-meter salt Wells could be seen everywhere in Sichuan. In 1835 AD, China was able to dig a deep well 'Shenhai well' with a depth of more than 1000 meters, with a head diameter of 11cm and a depth of 1001.42m. Different from the previous Yanjing, Shenhai Well is mainly used for natural gas exploitation and black brine exploitation along with it. Shenhai Well once produced 8,500 cubic meters of natural gas and 14 cubic meters of black brine per day, which was far ahead at that time. It was not until 1859 that the world's first oil well was drilled in the United States, at a depth of 21.69 meters. So， the ancient Sichuaneses were able to drill Wells hundreds or even 1,000 meters deep with only bamboo and iron drills. Can you imagine that these old drill bits in the museum were used by ancient Chinese people to drill Wells more than 1,000 meters deep? With the development of percussive drop drilling technology, there are more and more types of drill bits. There are at least eight different types, such as the Mammon file and the fishtail file. If a collapse occurred while drilling, the ancients would mix tung oil and lime to make cement, and special drill bits would bring mud back to the surface to keep the well open. The special pain of the drill can make you. Point to keep warning speed, according to statistics, Sichuan has a total of 13,000 salt Wells, the cumulative output of 70 million tons of salt. By 1850, it was producing 150,000 tons a year. In the process of drilling for salt, ancient Chinese accidentally discovered a gas that could be burned, namely natural gas. When salt is boiled, a lot of firewood is needed, and natural gas is the perfect substitute. The ancients therefore began to use natural gas on a large scale. Some netizens will ask, ancient no steel pipe and plastic pipe how to say the transmission of natural gas? The problem was certainly not difficult for the wise ancients. They cut the bamboo in half, remove the middle section, glue it together with tung oil and lime, and tie the outside with twine for setting and joining. In this way the ancients had natural gas pipelines. As late as the 1950s, there were still 95,000 meters of bamboo gas pipelines in use in Zigong, Sichuan Province. These techniques look simply, but they're actually subtle. This is the crystallization of ancient Chinese wisdom and evidence that China once led the world in science and technology. Without the technological stagnation caused by China's historical isolation, would the world's technological tree have developed in a different direction? Let us know what you think in the comments.
From: https://www.bilibili.com/video/BV1sG41177ED/?spm_id_from=333.1007.tianma.5-3-19.click As the basis of modern economy, drilling technology was initially mastered by China in the end of the Warring States period around 200 BC. After a long period of development, the ancient Chinese were able to drill Wells more than 1,000 meters deep using only bamboo poles. During the Ming and Qing Dynasties, they also used this technology to extract 30 billion cubic meters of natural gas. China was way ahead of the rest of the world in terms of technology at the time. So how did the ancient Chinese drill with bamboo sticks, and how did this dark technology work? Unlike today, the ancient Chinese did not drill for oil, but for salt. As we all know, salt is very much involved in our daily lives, not only to flavor our food, but also to help maintain our bodies, and as a food preservative. More than 5,000 years ago, ancient Chinese living in coastal areas began to extract sea salt by boiling it. In addition, they also mastered the technique of making salt by first introducing seawater into salt pans. The sun and wind then evaporate the water until the salt is naturally sucked out, a technique known chemically as precipitation. However, salt was a rare resource for ancient Chinese living in the inner regions. During the Warring States Period, around 250 BC, the people of Sichuan dug China's first salt well. Below the salt well is salty water, about 50 grams of salt per liter of drinking water, which they boil and evaporate to get the salt. By about 10 A.D. 50, Chinese salt production technology had a qualitative leap, from the original to digging Wells to drilling Wells. Percussive drop drilling technology is also initiated in horizontal space. What are the advantages of the percussion drilling technology in ancient China? To put it simply, the drill bit is made of iron, and the drill pipe is referred to as bamboo. At the beginning of the construction, one or more people stand on the wooden frame, lift the drill bit by about 1 meter through the principle of leverage, and then break the rock through the kinetic energy of the drill bit through free fall. The technique was developed and subsequently improved, with the ancient Chinese using lighter and thinner bamboo tethers instead of bamboo poles to drill deeper and deeper. By 1700, 300–400-meter salt Wells could be seen everywhere in Sichuan. In 1835 AD, China was able to dig a deep well 'Shenhai well' with a depth of more than 1000 meters, with a head diameter of 11cm and a depth of 1001.42m. Different from the previous Yanjing, Shenhai Well is mainly used for natural gas exploitation and black brine exploitation along with it. Shenhai Well once produced 8,500 cubic meters of natural gas and 14 cubic meters of black brine per day, which was far ahead at that time. It was not until 1859 that the world's first oil well was drilled in the United States, at a depth of 21.69 meters. So， the ancient Sichuaneses were able to drill Wells hundreds or even 1,000 meters deep with only bamboo and iron drills. Can you imagine that these old drill bits in the museum were used by ancient Chinese people to drill Wells more than 1,000 meters deep? With the development of percussive drop drilling technology, there are more and more types of drill bits. There are at least eight different types, such as the Mammon file and the fishtail file. If a collapse occurred while drilling, the ancients would mix tung oil and lime to make cement, and special drill bits would bring mud back to the surface to keep the well open. The special pain of the drill can make you. Point to keep warning speed, according to statistics, Sichuan has a total of 13,000 salt Wells, the cumulative output of 70 million tons of salt. By 1850, it was producing 150,000 tons a year. In the process of drilling for salt, ancient Chinese accidentally discovered a gas that could be burned, namely natural gas. When salt is boiled, a lot of firewood is needed, and natural gas is the perfect substitute. The ancients therefore began to use natural gas on a large scale. Some netizens will ask, ancient no steel pipe and plastic pipe how to say the transmission of natural gas? The problem was certainly not difficult for the wise ancients. They cut the bamboo in half, remove the middle section, glue it together with tung oil and lime, and tie the outside with twine for setting and joining. In this way the ancients had natural gas pipelines. As late as the 1950s, there were still 95,000 meters of bamboo gas pipelines in use in Zigong, Sichuan Province. These techniques look simply, but they're actually subtle. This is the crystallization of ancient Chinese wisdom and evidence that China once led the world in science and technology. Without the technological stagnation caused by China's historical isolation, would the world's technological tree have developed in a different direction? Let us know what you think in the comments.