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本文的研究对象为通过岩心、测井、录井等资料,对东营凹陷胜坨胜北断层上升盘沙河街组沙四上亚段沉积相特征进行了研究。沙四上亚段分为纯上和纯下两个亚段,再进一步划分为七个砂层组。在砂体展布、单井沉积相分析的基础上,对研究区沉积相展布特征及演化规律进行了分析,认为胜北断层上升盘近岸水下扇较为发育,扇体沿断层陡坡带呈裙带状展布,发育扇根、扇中、扇端三个亚相。
The research object of this paper is to study the sedimentary facies features of Shahejie Formation in Shahejie Formation of Shengtutuo Beisu fault in Dongying depression through data of core, well logging and mud logging. The upper segment of Sha 4 is divided into two sub-segments, pure and pure, which are further divided into seven sand layers. On the basis of sand body distribution and single well sedimentary facies analysis, the depositional characteristics and evolution of the sedimentary facies in the study area are analyzed. It is concluded that the nearshore subaerobic fan in the rising plate of the Shengbei fault is well developed, Was a ribbon-shaped distribution, the development of fan roots, fan, fan-end three subfacies.