This article**[CCTV];
CCTV*** China's first 10,000-meter exploration well, Deep Taco 1 Well, has been drilled to a depth of 9,900 meters on the afternoon of February 13, and is sprinting to the 10,000-meter formation. Up to now, China's first 10,000-meter-deep well has adopted a new diamond drill bit, and ancient rock specimens have been taken out for 50 consecutive times.
The deep Taco 1 well was drilled into the 9,000-meter ultra-deep formation at the end of December 2023. According to experts, the high temperature and high pressure at the depth of 9,000 meters, coupled with rock extrusion, led to a significant decline in the drilling progress, and the high temperature and high pressure in the depth of the formation also led to the damage of some drilling tools and the failure of some electronic components. At present, with the help of the measurement while drilling system, the staff can grasp the changes in downhole conditions in real time.
In recent years, China has successively made a number of major oil and gas discoveries in the ultra-deep fields of Tarim, Junggar and Sichuan basins, which further confirms the huge exploration and development potential of ultra-deep in China.
According to geology**, the Tarim Basin may be buried with rich oil and gas resources at a depth of 10,000 meters. Once this well achieves a breakthrough, it will open a "treasure house" of oil and gas below 10,000 meters, and form a field of increasing reserves and production in ultra-deep formations.
10,000 meters into the ground to find the oil source gas vein.
The ultra-deep oil and gas resources in the Tarim Basin are the largest in the country, and most of the oil and gas are buried in ultra-deep formations of seven or eight thousand meters. By drilling 10,000 meters of deep wells, the Tarim Oilfield better unlocks the "password" of deep exploration.
At present, China's first 10,000-meter exploration well is sprinting to the 10,000-meter formation, and the drill bit will drill through 13 sets of formations in the Tarim Basin, and finally open the oldest extra-deep oil layer in the Tarim Basin.
Finding the oil-producing layer buried deep underground will solve many geological problems in ultra-deep exploration. The Tarim Basin, located between the Kunlun Mountains of the Tianshan Mountains, is the largest oil-bearing basin in China.
The 560,000 square kilometers of Tarim Basin is rich in oil and gas resources, accounting for more than half of the country's ultra-deep resources. In recent years, the Tarim Oilfield has discovered two trillion cubic meters of atmospheric area and a 1 billion ton large oil area here, building China's largest ultra-deep oil and gas production base.
Drilling a 10,000-meter-deep well will not affect the formation structure.
Ascending to the sky, entering the earth, descending to the sea, and ascending to the pole are feats of people exploring nature. To build a 10,000-meter-deep well, it is necessary to drill a hole of more than 10 kilometers into the ground, will this hole change the stratigraphic structure? Will it induce geological disasters?
According to the inference of the change in the propagation velocity of the first wave, the internal structure of the earth is a concentric circle structure, which is divided into the core, mantle and crust from the center of the earth to the surface, and drilling a 10,000-meter-deep well is to drill the crust.
In fact, 10,000 meters deep wells have been drilled in the world, and there is no record of significant impact on the formation structure. China's ultra-deep drilling practice has also confirmed many times that drilling will not induce geological disasters such as volcanoes and mines.
Diving to the bottom of the sea A batch of deep-sea equipment has made new breakthroughs.
At the beginning of the new year, China's self-developed deep-sea heavy equipment has made a new breakthrough. The 10,000-meter manned submersible "Struggler" ushered in a comprehensive upgrade; The world's first deep-sea green intelligent technology test ship has entered the construction stage; The Ocean Drill Ship "Dream" has a drilling capacity of 11,000 meters and is expected to be delivered by the end of the year; China's newly developed deep-sea mining vehicle is preparing for kilometers of sea trials.
This deep-sea mining vehicle is a "magic weapon" dedicated to the mining of deep-sea polymetallic sulfides. Deep-sea polymetallic sulphides are a kind of deep-sea mineral resources rich in copper, zinc, gold, silver and other metals, and the metals contained are more than 600 times that of similar minerals on land, which is extremely valuable for mining.
Du Xinguang has led the team to conduct research on deep-sea mining vehicles for more than ten years, and the most difficult thing is how to make the mining vehicles withstand the super pressure of the deep sea. With many years of experience in the development of deep submersibles, Du Xinguang and his team continue to explore, and when they encounter problems that cannot be solved, he will come to see this flattened cup.
As the submersible sinks deeper and deeper, the surrounding water pressure increases, and when it reaches 3,000 meters, the equipment will be subjected to 300 atmospheres of pressure, and the paper cup will be squeezed into a ball.
Du Xinguang said that the manned deep submersible can go down and the mining vehicle can also arrive, and a small cup gives Du Xinguang the confidence to persevere.
Deep-sea mining vehicles undergo kilometer sea trials after the Spring Festival.
After the Spring Festival, the mining vehicle will go to the kilometer sea trial, and the success of the sea trial means that the mining vehicle has moved from research and development to engineering. The friends of the research and development team are very excited, and they also want to bring a "souvenir" belonging to the mining vehicle from the bottom of the thousands of meters, which is an honor for each of them.
In 2024, China's deep-sea equipment field will usher in new progress.
The 10,000-meter manned submersible "Struggler" is being optimized and debugged to prepare for subsequent manned deep dives.
The construction of the first deep-sea green intelligent technology test ship will be completed, which can support the sea trials of deep-sea equipment in the future.
The world's only ocean drilling ship with a drilling capacity of 11,000 meters "Dream" was delivered at the end of the year, which has the world's largest shipborne laboratory, which can undertake major national scientific and technological projects and international ocean scientific drilling tasks in the future.
Batches of deep-sea powers will continue to create "Chinese depth" and create a deep-sea "Chinese business card".