The paper researched the reservoir of the upper Shasi Member, mainly on the petrologic characteristics of reservoir, the types of the diagenesis and the physical property characteristics.

以沙四上亚段储层为研究对象，开展了储层岩石学特征、成岩作用类型与物性特征等方面的研究。

Dongying North part deep sand Shasi low Subsegmental of gas condensate methane and ethane are lighter isotopes shows that Cracking gas oil characteristics, rather than kerogen pyrolysis gas.

东营北带深层沙四下凝析油气甲乙烷同位素均较轻，表现出明显的原油裂解气特征，而非干酪根裂解气。

The high salt medium is beneficial to organic concentration and preservation. The gray mudstone and shale in middle Shasi column was a kind of high quality source rocks in Dongying Depression.

高盐环境有利于有机质的富集和保存，沙四中亚段的灰色泥岩和页岩为东营凹陷的一套有效烃源岩。