抄録
Unconventional oil and gas in China have developed rapidly in the past 40 years. Currently, China has become the third-largest shale gas producer in the world, with an annual production of 200×10^8 m^3 in the year 2020. With the breakthrough of exploration and exploitation of coalbed methane from medium-high rank coal, the annual production in China reached 59×10^8 m^3 in 2019. Tight sandstone gas is widely distributed in West and North China, and its successful exploitation has promoted the Ordos basin to become the largest oil and gas equivalent producer in China. Under the policy support of green exploration and exploitation, unconventional oil and gas resources, such as shale oil, tight oil, hydrate, and water-dissolved gas, are also booming and making remarkable achievements. The advanced theory, economic technology, and effective scheme will bring the exploration and exploitation of unconventional oil and gas in China into a new period.
