王家沟区长6油层沉积微相类型及展布特征

Sedimentary Microfacies Types and Distribution Characteristics of Chang 6 Oil Layer in Wangjiagou Area

研究区位于鄂尔多斯盆地伊陕斜坡东部区域,石油资源丰富。对区内长6油层组沉积背景、岩心照片、测井曲线显示特征等进行了深入研究。首先对沉积相进行了划分,然后对研究区各小层沉积相平面展布进行深入研究,结果表明,区内分流主河道沉积相主要呈阔带状分布,局部呈现出席片状分布,主要发育两条东北方向的河流。

The study area is located in the eastern part of the Yishan Slope of the Ordos Basin.It is rich in oil resources.The sedimentary background,core photos,and logging curve displaying characteristics of Chang 6 oil layer group in the area were studied in depth.Firstly the sedimentary facies are divided,and then the plane distribution of the small sedimentary facies in the study area are studied in-depth.The results show that the main channel sedimentary facies of the diversion channel in the area are mainly distributed in broad bands,and local flaky distributions,mainly developing two rivers in the northeast direction.