Weirong shale gas field was awarded China's “Top Ten Geological Prospecting Achievements in 2018”, with proven reserves of 124.7 billion cubic meters in 2018, and one billion cubic meters of capacity will be achieved this year; Dingshan-Dongxi Block Dongye Deep 1 Well test obtained a high-yield gas flow of 310,000m³ per day.


 
The shale gas resources in Sinopec exploration area are rich, and the exploration and development potential is large, mainly distributed in southern Sichuan and western Chongqing, with a total area of ​​nearly 20,000km². For many years, Sinopec Southwest Oil and Gas Branch and Exploration Branch have been committed to shale gas exploration and development.


 
Among them, Weirong shale gas field is located in Neijiang City and Zigong City of Sichuan Province. In 2015, Sinopec Southwest Oil and Gas Branch tested industrial gas flow at Weiye 1HF well. In 2016, the Southwest Oil and Gas Branch promoted the integration of exploration and development and discovered the shale gas reservoir of the Wufeng Formation-Longmaxi Formation of the Weirong shale gas field. In 2018, the gas field possessed a total of 124.7 billion cubic meters of proven reserves, marking Sinopec's breakthrough in the field of deep shale gas.


 
Recently, Weiye 43-5HF well of Sinopec Weirong shale gas field is successfully drilled to 5610m, the quality reservoir drilling rate was 100%, and the first phase production capacity of Weirong shale gas field has been fully developed. 44 wells have been drilled in the area, and 12 wells have been drilled. Key pivotal pipeline projects, 35kV power supply project, and access road infrastructure project are proceeding in an orderly manner.


 
In the Dingshan-Dongxi block, Sinopec's deep shale gas research and test well, Dongye Shen 1 well, was able to obtain a high-yield gas flow of 310,000m³ per day in a high-quality shale gas reservoir with a depth of 4,270m. This is the first high-yield shale gas well in China with a depth of more than 4,200m. It has broken through the fracturing technology of shale gas wells with a depth of more than 4,000m, laying a technical foundation for large-scale commercial development of deep shale gas.


 
At the same time, Dingye 4 well and Dingye 5 well deployed in the block have successively obtained a high-yield shale gas flow of 200,000m³ and 160,000m³ in the high-quality shale gas layer of 4,000m deep. It is proved that the shale gas layer of the Wufeng Formation-Longmaxi Formation of the Dingshan Formation has characteristics of high pressure and rich gas, and has great potential for commercial development. It is another 100 billion-level cubic meters gas field after discovering Fuling and Weirong shale gas fields.