It's a residual mountain(unaka) which were a set of thrust blocks under the erosion unconformity.It's reservoir pore space is a fracture-vug-pore system of Ordovician carbonate karst.
该气藏的构造为道冲构造侵蚀而成的残丘山,储集为奥
碳酸盐岩溶蚀缝洞
,流
呈层状分
(集中分
于奥
组和上马家沟组上段)。