Subtle oil-gas reservoir or trap is a practical term proposed for describing exploration activities. 隱蔽油氣藏（隱蔽圈閉）是一種因勘探活動而提出的實用性術語。
Finally, we can predict the reservoir and evaluate the oil-gas trap in the light of the sandstone distribution and geological structure. 再根據(jù)砂層分佈槼律和搆造特征進行儲集層的預測和油氣圈閉評價。
A whole process including oil-gas source, migration-accumulation and trap- preservation has been emphasized in the modern petroleum geology. 現(xiàn)代油氣地質學強調從油氣源巖、運移聚集到圈閉保存的全過程。