Characteristics of the shale gas reservoir rocks in the Lower Silurian Longmaxi Formation,East Sichuan basin,China
四川盆地东部地区下志留统龙马溪组页岩储层特征

The Sichuan basin is an oil-bearing and gas-rich basin with extensive development of the Lower Silurian Longmaxi Formation shale in southwestern China.The gas shows in the shale were identified in exploration wells mainly located between southeastern Sichuan basin and western Hubei-eastern Chongqing.The thickness of the Silurian Longmaxi Formation shale ranges from 65 to 516m.The base of the Longmaxi Formation shale is graptolite-rich transgressive black shale.Its thickness increases eastward in the study a...