Enrichment rules and exploration practices of Paleogene shale oil in Jiyang Depression, Bohai Bay Basin, China

SONG Mingshui,LIU Huimin,WANG Yong,LIU Yali

Fig. 2. Structure features of storage space in different lithofacies. (a) Well-LY1, 3 603.3 m, laminated argillaceous limestone, complex pore-fracture system formed by netlike fracture, bed parallel fracture and matrix pore, argon ion polishing scanning electron microscope; (b) Well-NY1, 3 336.0 m, laminated argillaceous limestone, bed parallel fracture, bed-crossing fracture and matrix pore, poor connectivity, argon ion polishing scanning electron microscope; (c) Well-NY1, 3 485.9 m, bulky limy mudstone, irregular fracture and matrix pore, argon ion polishing scanning electron microscope.