四川盆地及其周缘典型地区龙潭组页岩岩相划分对比及特征

何燚,唐玄,单衍胜,刘光祥,谢皇长,马子杰

Lithofacies division and comparison and characteristics of Longtan Formation shale in typical areas of Sichuan Basin and its surrounding

Yi HE,Xuan TANG,Yan-sheng SHAN,Guang-xiang LIU,Huang-chang XIE,Zi-jie MA

图6 DC1井龙潭组页岩岩相类型及镜下特征 (a)特高有机质黏土质页岩相,D4样品,723.2 m, TOC=7.15%;(b)高有机质黏土质页岩相,D7样品,862.6 m, TOC=2.91%;(c)高有机质砂质页岩相,D6样品,854.1 m, TOC=2.91%;(d)煤,D2样品,671 m, TOC=42.8%

Fig.6 Lithofacies and microscopic characteristics of Longtan Formation shale in Well DC1