Key oil accumulation periods of ultra-deep fault-controlled oil reservoir in northern Tarim Basin, NW China
YANG Shuai,WU Guanghui,ZHU Yongfeng,ZHANG Yintao,ZHAO Xingxing,LU Ziye,ZHANG Baoshou
Fig. 2. Photos of typical Ordovician carbonate cores and thin sections with fracture fillings. O2y-Yijianfang Formation; O1-2y-Yingshan Formation.