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从盖层、断层、水动力条件三方面对东渡凹陷油气藏的封堵条件进行研究，分析盐膏层对油气的富集和分布所起的作用，探讨泥岩盖层在不同深度条件下封堵能力的变化，对断块油气藏的封闭条件进行讨论，总结了水动力条件对油气成藏的影响。认为东渡凹陷盐膏层控制了北部地区油气的聚集成藏；浅层或深层泥岩盖层封堵条件很差；断块油气藏的形成和保存主要依赖于区域盖层的封闭和断层两侧盐膏层或泥岩与砂岩的配置；水动力条件对油气的保存具有一定的影响。东濮凹陷的油气封堵条件对于油气藏的形成和保存起关键作用。
The sealing conditions of the Dongdu Depression reservoirs are studied from the aspects of caprock, fault and hydrodynamic conditions, and the role of salt-paste layers in the enrichment and distribution of oil and gas is analyzed. This paper discusses the sealing conditions of fault block reservoirs and summarizes the influence of hydrodynamic conditions on hydrocarbon accumulation. It is considered that the salt-and-ointment layer of Dongdu Depression controls the accumulation of oil and gas in the northern part of the country; the sealing conditions of shallow or deep mudstone caprocks are very poor; the formation and preservation of fault-block reservoirs depend mainly on the closure of regional cap rocks and the fault sides Salt paste layer or mudstone and sandstone configuration; hydrodynamic conditions have a certain impact on the preservation of oil and gas. The hydrocarbon plugging conditions in Dongpu sag plays a key role in the formation and preservation of oil and gas reservoirs.