The reservoir pores of carbonate buried-hill reservoir are mostly fractures and caverns.The caverns are the primary reservoir space and the fractures are the primary seepage channel.

• 碳酸盐岩潜山油藏储层孔隙主要为裂缝和溶洞,其中溶洞是主要的储集空间,裂缝是主要的渗流通道。