China is rapidly advancing its ultra-deep oil and gas exploration in the Tarim Basin, located in northwest China's Xinjiang Uygur Autonomous Region, with significant progress made in the Fuman Oilfield, the country's largest ultra-deep oilfield, where 73 percent of newly drilled wells prove to be high-yielding.
The China National Petroleum Corporation (CNPC), the country's leading oil and gas producer, has made significant strides through its work in the area, where the overall drilling cycle for ultra-deep wells has been significantly reduced through optimized drilling designs and incorporating advanced technologies and equipment into the process.
"The 'Manshen-807' well was drilled to a depth of over 8,800 meters in just 99 days, while 'Manshen-805' reached over 9,200 meters in 112 days, the fastest nationwide," said Wang Xiaoliang, deputy director of the drilling research division of the oil and gas exploration techniques research institute of the Tarim Oilfield company, a subsidiary of the CNPC.
By the end of July, the Tarim Oilfield has seen a total of 650,000 meters being drilled this year, with the overall time of the drilling and completion cycle for areas with rich oil and gas being reduced by over 21 percent, breaking 46 records, and highlighting the increased efficiency brought by the tech advances.
More than 120 cities in 15 provincial-level regions across China have been benefited by the natural gas supplied by the Tarim Oilfield, underlining the pivotal importance of the drilling work in the area in meeting the country's energy demands.
The oil drilling industry generally classifies wells with depths exceeding 6,000 meters as ultra-deep wells. These wells serve as essential tools for extracting deep-sea oil and gas resources and exploring the Earth's deep layers.

China accelerates exploration of ultra-deep oil, gas in Tarim Basin