The reservoir types in the studied region are mainly deltaic facies and inshore shallow lake facies sand bodies.

研究区储集层岩相主要为三角洲相、滨浅湖相砂体。

youdao

During Aershan depositional period, the lake range was rather smaller and shore-shallow lake facies is the main characteristic.

阿尔善沉积时期湖水范围较小，以滨浅湖为主。

youdao

In vertical, from E31 to E32, it changes from braided river delta to a shallow lake facies, thus, formed a cycle which lithologic character is rough at bottom.

在纵向上，从E31 - E32，从下向上由辫状河三角洲相变为浅湖相，构成了一正旋回沉积。

youdao