研究区瓦窑堡油田中山川区属鄂尔多斯盆地陕北斜坡东部，长6油层组是其最重要的含油层位之一。
The Zhongshanchuan research area of Wayaobao Oilfield is located in the Shanbei slope of the Ordos Basin, Chang6 oil layers is the most important one of the oil-bearing strata.
主要含油层位为沙河街组。
关家堡地区滩海油田主要含油层位是上第三系明化镇组、馆陶组和下第三系沙河街组。
Guan Jiapu area beach sea oil field main oil-bearing formation location whether last the third take town group, Guantao group and lay the third Shahe street group tomorrow.
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