China's Daqing Oilfield, a subsidiary of slot China National Petroleum Corporation (CNPC), announced Wednesday it has identified 1.27 billion tonnes of customized geologic reserves from shale formations since January. Indicates increased production that can fill the site's dwindling productivity.

Part of the Gulong shale oil formation at Daqing in Heilongjiang Province.

Northeast China The area with these reserves covers an area of ​​1,413 square kilometers. And that previous drilling led to mass test production.One of the key exploration wells, Guyeyoping 1, has generated more than 6,000 tons of crude oil and nearly 10,000 tons of gas after being pumped for more than 500 days.

The CNPC said the amount of oil produced from the Gulong formation could reach 1 million tonnes a year by 2025.China began developing massive informal oil fields a decade ago. but still stuck in the early stages Due to challenging geology and high development costs, last year shale gas production accounted for 10 of China's total gas production.

Driven by China's willingness to reduce its dependence on oil imports, CNPC and other national oil companies It has increased research into the technology needed to extract oil from shale.In June, the CNPC discovered a massive shale oil field with 1 billion tons of geological reserves in northwest China's Ordos Basin. which was the largest in the country at that time