Natural gas has great potential to increase production
As a relatively clean fossil energy, natural gas is considered to be the main growth point of China's energy structure adjustment and the main force of low-carbon transformation. Under the constraints of the two goals of "striving to peak carbon dioxide emissions before 2030 and striving to achieve carbon neutrality before 2060", the pace of clean and low-carbon transformation of China's energy structure will be accelerated, and the bridge role of natural gas in it will be further reflected.
Dai Jinxing pointed out that during the "14th Five-Year Plan" period, China's natural gas industry has three favorable conditions: "First, China's natural gas resources are rich and the proved rate is low, and it has the resource advantage of faster development of natural gas; Second, in recent years, China's natural gas output continues to grow, with a faster development of natural gas growth advantages; Third, the remaining recoverable reserves of natural gas in our country are increasing year by year, and we have the advantage of developing natural gas reserves faster."
It is understood that as of 2019, there are 10 countries with an annual output of more than 100 billion cubic meters of natural gas in the world, and China's annual output of natural gas is 176.17 billion cubic meters, ranking fifth. China's total recoverable natural gas resources reach 85 trillion square meters, ranking second in the world, but the cumulative proved recoverable natural gas reserves are only 7.36 trillion square meters, and the proved rate is only 8.6%, which is the lowest among the 10 countries. Compared with other countries, the United States has a proven rate of 74%, and Australia and Canada have the lowest proven rates of 18% and 29.7%, respectively.
In Dai Jinxing's view, even if calculated according to the proved rate of the two lowest countries abroad, China's future proved cumulative recoverable reserves are 15.4 trillion square meters and 25.4 trillion square meters, respectively, which is 2.1 times and 3.4 times of the proven cumulative recoverable reserves in 2019.
In addition, from the "eleventh Five-Year Plan" to the "thirteenth Five-Year Plan" period, China's remaining recoverable reserves are strong and basically rising year by year, from more than 200 billion square meters in 2006 to more than 400 billion square meters in 2019, basically doubling, with the resource conditions to support the production increase of natural gas.
Dai Jinxing further pointed out that China's "12th Five-Year" average annual gas increase of 7.51 billion square meters, "13th Five-Year" average annual gas increase of 10.88 billion square meters, according to this trend, "14th Five-Year" period as long as the average annual gas increase of 12.2 billion square meters, China's annual gas production in 2025 can reach 250 billion square meters.
Important areas of unconventional gas production
Since there is a large potential to increase production, how should we do a good job in exploration and development to ensure increased storage and production?
Yang Zhi, research Institute of Petroleum and Gas Geology, Research Institute of Petroleum Exploration and Development, pointed out that unconventional oil and gas will become a strategic resource for "stabilizing oil and increasing gas". It is understood that in the current proved oil and gas resources in China, the ratio of conventional and unconventional resources is 1:3, and in the remaining natural gas resources, unconventional gas is about 4 times that of conventional gas.
Ma Feng, Science and Technology consulting center of China Petroleum Exploration and Development Research Institute, also said that China's oil and gas industry has entered the conventional and unconventional stage, the proportion of complex gas reservoirs is getting higher and higher, and it is becoming more and more difficult to find high-quality large gas fields, which puts forward more innovative demand for exploration and development.
According to reports, China's "13th Five-Year" shale gas planning annual output of 21 billion square meters, to achieve 20.4 billion square meters, the completion rate of 95.4%, basically achieve the shale gas planning goals. Among them, petrochina will put into operation 962 Wells and produce 11.61 billion square meters of shale gas in 2020, and Sinopec will put into operation 733 Wells and produce 8.43 billion square meters of shale gas. From 2016 to 2020, the growth rate of shale gas production in China is 17%-42%, which is still in the early stage of exploration and development compared to North America, and has the development conditions for rapid production.
The "14th Five-Year Plan" of the Exploration Institute pointed out that the next key goal will be to attach equal importance to low-grade conventional and unconventional, and ensure the national oil and gas security and green low-carbon transformation and development. In the field of unconventional gas exploration and development, we will focus on shale gas, tight gas, coal-bed methane, underground coal-to-gas and other directions, break through the exploration and development theories and technologies of deep shale gas, non-marine shale gas, and underground coal-to-gas, and promote the "continental shale oil and gas revolution."
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