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东濮凹陷东营组埋藏浅、物性好、产量高,是中原油田近年重要的滚动勘探阵地,但由于前期作为非主力层系,测录井及试油气资料匮乏,未开展系统研究,一直没有取得大的突破。近年从建立全区标准剖面入手,明确地层发育特征,利用高精度三维地震资料,落实区域构造及特征,恢复了东营组古地貌,提出浅水三角洲沉积相新认识,通过油源对比、成藏分析,明确了东营组成藏模式,指明东营组顶部地层存在低含油饱和度油藏。利用构造精细解释、滚动储集层描述、地震属性分析、沉积微相分析、圈闭评价形成了一套针对东濮凹陷东营组滚动勘探技术,在文留地区应用效果显著,对下步东营组滚动评价工作有较好的指导意义。
The Dongying Formation in Dongpu Depression is characterized by shallow burial, good physical properties and high yield. It is an important rolling exploration site of Zhongyuan Oilfield in recent years. However, systematic studies have not been carried out due to lack of information on logging wells and test-oil gas in the early stage. Big break. In recent years, starting from the establishment of a standard profile in the whole region, the authors have clarified the characteristics of stratigraphic development, implemented high-resolution 3D seismic data, implemented regional tectonics and features, restored the paleogeomorphology of the Dongying Formation, and proposed a new understanding of sedimentary facies in the shallow water delta. , Clarified the model of Dongying Formation and pointed out that there are oil reservoirs with low oil saturation in the top of Dongying Formation. A set of geophysical exploration techniques for Dongying Formation in Dongpu Sag have been formed by means of fine interpretation of structures, description of rolling reservoirs, seismic attribute analysis, sedimentary microfacies analysis and trapping evaluation. The application results are significant in Wenliu area. Scroll evaluation has a good guiding significance.