my country’s shale oil exploration has made a major breakthrough. News learned from China National Petroleum Corporation on June 20 that, after more than two years of concentrated efforts, PetroChina’s Changqing Oilfield has achieved significant results in the Chang 7 oil exploration in the Ordos Basin, with proven geological reserves of over 1 billion tons of shale oil preparation. Zhuangda oilfield has become the largest shale oil field with the largest proven reserves in my country.
PetroChina stated that in the past three years, major discoveries and breakthroughs have been made in the shale oil and gas field. Among them, the shale oil exploration in the Ordos Basin frequently reported success. Changqing Oilfield made a major breakthrough in petroleum exploration in Qingcheng area in 2019, with proven shale oil reserves of 359 million tons, new proven reserves of 143 million tons in 2020, and 550 million tons of proven geological reserves in the first five months of this year. After the final review of the National Oil and Gas Resources and Reserves Committee, it was put into storage. So far, the acquisition of a large oil field with proven reserves of more than 1 billion tons in Qingcheng Oilfield in less than three years has become one of the landmark achievements in my country’s oil and gas exploration field since the new century.
Changqing Oilfield’s Qingcheng Shale Oil Field Hua H50 Platform Site
The surface of the Qingcheng Shale Oil Field is covered by thick loess in the loess plateau, and ravines are vertical and horizontal. Seismic exploration, drilling and fracturing are very difficult. At present, the total proved oil reserves are 1.052 billion tons. This exploration achievement benefited from Changqing Oilfield’s continuous innovation in the Ordos Basin shale oil exploration geological theory, 3D seismic and logging imaging technology in the loess plateau, and also derived from the key core technologies of horizontal well drilling and volume fracturing. Breakthrough.
Since 2011, Changqing Oilfield has focused on large-scale oil and gas production and took the lead in the development of unconventional petroleum exploration geological theory innovation, forward-looking technical research and horizontal well development tests in the basin. , Continue to deepen the understanding of shale oil reservoir tightness mechanism, accumulation mechanism, and enrichment law, research and establish the “Four Controls” enrichment model of Chang 7 intra-source reservoirs, and establish the theory of source-reservoir symbiosis oil and gas enrichment in continental shale strata. , Revealing for the first time the formation mechanism of shale rich in organic matter in large inland freshwater lake basins, creating a new model of accumulation. 
Ten years of grinding a sword, Changqing Oilfield opened Has become a treasure house of continental shale oil resources, and won my country’s first proven reserves of over 10Hundreds of millions of tons of shale oil is “Big Mac”.
With the rapid growth of proven reserves, shale oil has become a new growth pole for the high-quality development of Changqing Oilfield. It is estimated that by the end of the 14th Five-Year Plan period, the annual output of shale in Changqing Oilfield will increase to 3 million tons, helping oil and gas development to reach a new height of 70 million tons.