中国陆相湖盆碳酸盐岩储集层特征及其成藏条件

杜江民, 龙鹏宇, 杨鹏, 丁强, 胡秀银, 李伟, 柏杨, 盛军

Characteristics of Carbonate Reservoir and Its Forming Conditions in Continental Lake Basin of China

Jiangmin Du, Pengyu Long, Peng Yang, Qiang Ding, Xiuyin Hu, Wei Li, Yang Bai, Jun Sheng

图5 四川盆地中部地区侏罗系大安寨段介壳灰岩储集层特征 （a）含泥介屑灰岩，X1井，大一段，2 858.00 m，岩心照片；（b）泥质介屑灰岩，Y1井，大二段，3 130.22 m，岩心照片；（c）泥质介屑灰岩，纹层发育，X3井，大二段，2 995.70 m，岩心照片；（d）微裂缝，X1井，大三段，3 073.40 m，铸体薄片（蓝色）；（e）与裂缝连通处溶蚀孔发育，S1井，大二段，3 072.30 m，铸体薄片（红色）；（f）介屑灰岩，溶蚀孔发育，X3井，大二段，2 995.30 m，扫描电镜照片

Fig. 5 Characteristic of Jurassic Da'anzhai Member crustal limestone reservoir in central Sichuan Basin (a) Mud bearing medium detritus limestone, well X1, first member, 2 858.00 m, core photo; (b) Mud medium detritus limestone, well Y1, second member, 3 130.22 m, core photo; (c) Mud medium detritus limestone, developed lamination, well X3, second member, 2 995.70 m, core photo; (d) Microfracture, well X1, third member, 3 073.40 m, casting thin section (blue); (e) Dissolution at the connection with fracture Pore development, well S1, second member, 3 072.30 m, cast thin section (red); (f) Intermediate limestone, dissolution pore development, well X3, second member, 2 995.30 m, SEM photo