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PetroChina’s Changqing Oilfield announced on June 20 that after years of concentrated efforts, China’s proven shale oil geological reserves in the Ordos Basin have exceeded 1 billion tons, making it the largest shale oil packaged oil field in China with the largest proven reserves
In 2019, PetroChina discovered the Qingcheng shale oil field in the Longdong area of Gansu.
Niu Xiaobing, Manager of Exploration Division of PetroChina Changqing Oilfield Company: The exploration and development of the 1 billion ton Qingcheng shale oil field benefited from our continuous development of the Ordos Basin petroleum exploration geological theory and 3D seismic and imaging logging technology Innovations are also derived from breakthroughs in key core technologies for horizontal well drilling and volume fracturing
The surface of the Qingcheng shale oil field is covered by thick loess in the loess plateau, with ravines vertical and horizontal, and seismic exploration, drilling and fracturing are very difficult
Wu Zhiyu, senior expert of PetroChina Changqing Oilfield Company: Relying on major national projects and through integrated innovation, we explored and formed 5 series of 18 supporting technologies for shale oil development, and created a new model of three-dimensional development of horizontal wells and factory-based operation of large well clusters.
At present, the Qingcheng Oilfield has put into production 277 oil wells, and the annual output will reach 1.
