The main oil-bearing layer is Shahejie Formation.

主要含油层位为沙河街组。

youdao

Saertu oil-bearing layer in Dabei Oilfield is an extra-low permeable reservoir bed.

大北油田萨尔图油层属于特低渗透储层。

youdao

The strata of Putaohua oil-bearing Layer is thinning out gradually in west part of studied area.

葡萄花油层在研究区西部逐渐减薄、尖灭，乃至缺失。

youdao

He says the Bakken has a layer of nearly impermeable shale that sits above the oil-bearing reservoirs.

FORBES: Focus