An oil well in China's largest land tight oil demonstration area in the Changqing Oilfield, northwest China's Gansu Province, has so far produced 5,000 tons of oil since it was put into operation in October 2018, marking a stable yield of the well.
Boasted of 300 horizontal wells, the demonstration area is expected to produce as much as 1 million tons of oil in 2019, and the total yield will exceed 6 million tons by 2025.
Tight oil, also known as shale oil, is light crude oil contained in petroleum-bearing formations of low permeability, often shale or tight sandstone.
Source:cctvplus
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