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5 M1井龙潭组泥页岩岩相类型及特征 (a)特高有机质硅质混合页岩相,M9样品,4 949.15 m, TOC=9.22%;(b)特高有机质硅质页岩相,M5样品,4 944.4 m, TOC=9.88%;(c)特高有机质黏土质页岩相,M20样品,4 960.42 m, TOC=4.696%;(d)高有机质硅质页岩相,M11样品,4 951.2 m, TOC=2.01%;(e)高有机质黏土质页岩相,M21样品,4 962.3 m, TOC=3.05%;(f)中有机质钙质混合页岩相,M2样品,4 941.5 m, TOC=1.41%;(g)中有机质黏土质页岩相,M16样品,4 956.8 m, TOC=1.62%;(h)灰色含泥灰岩,M15样品,4 955.7 m, TOC=0.369%

Fig.5 Lithofacies types and characteristics of shale in Longtan Formation in Well M1