main oil-bearing series 主力含油层系
oil-bearing horizons series 含油层系
Its main oil-bearing series are Cretaceous Hutubihe formation and middle Jurassic Xishanyao formation.
其主要含油层系白垩系呼图壁河组和中侏罗系西山窑组。
参考来源 - 层状底水油层开采机理及产能综合研究与应用·2,447,543篇论文数据，部分数据来源于NoteExpress
The forth segment of Shahejie formation(ES_4) is a new oil-bearing series found in the east slope of Niuzhuang Sag since 2004.
牛庄洼陷东坡沙四段是2004年以来发现的一套新的含油层系。
Wennan oilfield is complex fault-block oilfield with cracked structures, deep oil-bearing formations, high pressure coefficient, low penetrability and much more oil-bearing series.
文南油田是地质构造破碎，油层埋藏深，压力系数高，渗透率低，含油层系多的复杂断块油田。
This article distinguishes two different sedimentary environments of Fuyu and Yang-dachengzi oil-bearing series in Sanzhao depression with geological analytical method of trend surface.
应用趋势面地质分析方法，区别出三肇拗陷扶余、杨大城子油层两种不同的沉积环境。
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