Well Yeding 4 of Sinopec in southern Chongqing has achieved a high-yield industrial gas flow of 205,600 cubic meters per day, breaking through the bottleneck of fracturing technology with a buried depth of more than 4,000 meters.
The gas flow of 49,000m3/day was tested in Zu 202 well of PetroChina in western Chongqing, and the fracturing depth reached 3,980m.
The high-yield shale gas flow of 1 23,800 m3/day was obtained in the Cambrian from the1well in Yiyiye, Yichang, Hubei Province, which was an important discovery of the world's oldest shale gas reservoir in the Sinian. ...
Yu Haifeng, director of the Geological Exploration Department of the Ministry of Land and Resources, revealed that at present, the proven geological reserves of shale gas in marine strata around the Sichuan Basin have reached 764.3 billion cubic meters, of which the proven geological reserves of Chongqing Fuling shale gas field have reached 600.8 billion cubic meters, making it the largest shale gas field outside North America.
Shale gas is unconventional natural gas contained in shale, and it is a clean and efficient energy source. Previously, the "shale gas revolution" in the United States had a significant impact on the international natural gas market and the world energy pattern.
At present, the proportion of natural gas in primary energy consumption in China is less than 7%, far below the world average. Experts said that vigorously promoting shale gas exploration and development and increasing the supply of natural gas resources are of great significance to promoting the transformation of China's energy production and consumption patterns, optimizing energy structure and ensuring energy security.
Although shale gas exploitation in China started late, it has made rapid progress. "At present, the exploration and development achievements of Fuling and Changning-Weiyuan two national shale gas demonstration zones are gratifying, which also proves that China's shale gas development potential is huge. We must have confidence in this! " Zhang Dawei, director of the Mineral Resources Reserve Evaluation Center of the Ministry of Land and Resources, said.
As the "first stop" for large-scale commercial development of shale gas in China, Fuling shale gas field has completed the first phase with an annual production capacity of 5 billion cubic meters, and the second phase with an annual production capacity of 5 billion cubic meters has exceeded half. "By the end of this year, the cumulative production capacity will be 654.38+00 billion cubic meters!" Hu Hu, deputy general manager of Jianghan Oilfield of Sinopec and general manager of Fuling Shale Gas Company.
At present, the daily output of Fuling shale gas field is stable at160,000 cubic meters, which is equivalent to the daily gas consumption of more than 32 million households. Fuling shale gas field is continuously delivering clean energy to eight provinces and cities along the Yangtze River by connecting the "Sichuan-East Gas Transmission" pipeline.
The Changning-Weiyuan shale gas field of PetroChina, located in the south of Sichuan, has also recently ushered in a rapid increase in production. Since last year, the proven reserves in this block have increased by11081500 million cubic meters, with a built-up production capacity of 2.5 billion cubic meters and a cumulative gas production of more than 5 billion cubic meters. By 2020, the output of Changning-Weiyuan shale gas field is expected to reach 654.38+00 billion cubic meters.
"China's shale gas resources rank among the top in the world. As long as it persists, China is also expected to usher in the' shale gas revolution'. " Jin Zhijun, academician of China Academy of Sciences and deputy chief geologist of Sinopec, said.
Rational use of resources to achieve sustainable development.