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8 柴达木盆地英西地区渐新统湖相白云岩储集层孔隙发育特征 （a）S41-6-1井，3 853.50 m，可见晶间孔中充注了蓝色环氧树脂，铸体薄片实物；（b）S41-6-1井，3 857.95 m，与微裂缝连通处含油，铸体薄片；（c）S41-6-1井，3 866.58 m，晶间孔发育，铸体薄片（蓝色）；（d）S41-6-1井，3 857.35 m，晶间孔发育，氩离子抛光后的扫描电镜照片；（e）S3-1井，4 365.55 m，晶间孔发育，氩离子抛光后的扫描电镜照片；（f）S3-1井，4 365.55 m，晶间孔发育，氩离子抛光后的扫描电镜照片；（g）S3-1井，4 365.55 m，晶间孔发育，氩离子抛光后的扫描电镜照片；（h）S3-1井，4 365.55 m，晶间孔发育，氩离子抛光后的扫描电镜照片；（i）S3-1井，4 365.55 m，晶间孔发育，氩离子抛光后的扫描电镜照片

Fig. 8 Pore development characteristics of Oligocene Lacustrine Dolomite reservoir in Yingxi area, Qaidam Basin (a) Well S41-6-1, 3 853.50 m, it can be seen that the intergranular pore is filled with blue epoxy resin, and the casting slice is in kind; (b) Well S41-6-1, 3 857.95 m, and the oil-bearing part is connected with the micro fracture, and the casting slice is in thin; (c) Well S41-6-1, 3 866.58 m, the intergranular pore is developed, and the casting slice is in blue; (d) Well S41-6-1, 3 857.35 m, the intergranular pore is developed, and the SEM photo after argon ion polishing is taken; (e) Well S3-1, 4 365.55 m, intergranular pore development, SEM photo after Ar ion polishing; (f) Well S3-1, 4 365.55 m, intergranular pore development, SEM photo after Ar ion polishing; (g) Well S3-1, 4 365.55 m, intergranular pore development, SEM photo after Ar ion polishing; (h) Well S3-1, 4 365.55 m, intergranular pore development, SEM photo after Ar ion polishing SEM photos; (i) Well S3-1, 4 365.55 m, intergranular pore development, SEM photos after argon ion polishing