利用岩心观测、薄片鉴定及录井、钻井等资料 ,对月海油田古生界古潜山储层特征进行了分析研究 ,并对其含油气情况进行了评价。结果认为 :本区古生界古潜山岩性以碳酸盐岩为主 ,沉积相为滨浅海相 ;古潜山储集空间以风化溶蚀型网状裂缝为主 ;通过对 7项油气评价指标的衡量 ,本区古潜山基本属Ⅰ～Ⅱ类古潜山 ,是一个勘探潜力较大、远景看好的古潜山区。 Based on the data of core observation, thin slice identification, well logging and drilling, the Paleozoic buried hill reservoirs in the Yuehai Oilfield are analyzed, and their oil and gas conditions are evaluated. The results show that the lithology of the ancient buried volcanic rocks in the Paleozoic is mainly carbonate rocks and the sedimentary facies are shallow coastal facies. The reservoir space of the ancient buried volcanic is dominated by weathered and eroded fractures; Indicators measure, the area of ​​ancient buried hill basically belongs to the Ⅰ ~ Ⅱ class of buried hill, is a exploration potential, optimistic about the ancient buried mountain area.