Controlling factors on the formation and distribution of “sweet-spot areas” of marine gas shales in South China and a preliminary discussion on unconventional petroleum sedimentology

• Published in: Journal of Asian earth sciences Vol. 194; p. 103989
• Main Authors: Qiu, Zhen, Zou, Caineng
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.06.2020
• Subjects: Coupling of sedimentology; Geological event; Sichuan Basin; Sweet-spot area; Sweet-spot interval; Wufeng-Longmaxi Shale; Sichuan Basin; Wufeng-Longmaxi Shale; Sweet-spot area; Sweet-spot interval; Geological event; Coupling of sedimentology

[Display omitted] •The formation of sweet-spot intervals is mainly controlled by four geological factors.•Sweet-spot areas were “born” in regional anoxic shelf with stable tectonics.•Sweet-spot areas could be “preserved” in relatively stable tectonic zones.•Sweet-spot areas would be the result of co...