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The drilling of the Shendi-1 project in China heralds ultra-deep success

2023-06-19 14:00:42
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In recent years, China has achieved a series of breakthroughs in the exploration and development of deep oil and gas resources.

 

The drilling of the Yuejin 3-3 well of the Shendi-1 project in the Tarim Basin of Xinjiang is intended to reach a depth of 9,472 meters, a record for the deepest oil and gas well in Asia.

 

It represents a major milestone in the country's exploration of deep energy resources that will further guarantee China's national energy security.

 

Drilling is the use of mechanical equipment and tools to drill holes from the ground to the underground, establishing channels for the extraction of resources such as oil and natural gas underground. The commonly used drilling method is "rotary drilling", which uses the drill bit to cut and grind while rotating, breaking the rock. The oil and gas at depths of tens of thousands of meters in China are stored in nanoscale small rock pores, making extraction difficult. Therefore, special tools such as diamond drills and cone drills are needed, each with a set of "teeth" made of diamond to "chew" hard rocks. The cone drill has a bearing component inside, which works like a wheel and can rotate to avoid being "hard" with the rock.

 

In order to send the drill bit to a depth of 10000 meters underground, it is necessary to use a drill pipe with a length of about 10 meters, connecting each section to 10000 meters. At present, the deepest depth that human technology can reach underground is about 10000 meters.


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