Formation and evolution of shale overpressure in deep Wufeng-Longmaxi Formation in southern Sichuan basin and its influence on reservoir pore characteristics

• Published in: Frontiers in earth science (Lausanne) Vol. 12
• Main Authors: Sun, Shasha, Shi, Zhensheng, Dong, Dazhong, Bai, Wenhua, Wei, Lin, Yin, Jia, Qu, Jiajun
• Format: Journal Article
• Language: English
• Published: Frontiers Media S.A 25.04.2024
• Subjects: formation mechanism; pore structure; pressure evolution; reservoir property; strong overpressure
• ISSN: 2296-6463; 2296-6463
• DOI: 10.3389/feart.2024.1375241

In the deep Longmaxi Formation shale gas reservoirs of the southern Sichuan Basin, strong overpressure is universally developed to varying degrees. However, there is currently a lack of in-depth research on the formation mechanisms, evolutionary patterns, and the controlling effects on reservoir por...