肇源南长47井区油水分布规律及主控因素研究

发布时间：2018-05-01 16:19

本文选题：肇源南地区 + 扶余油层　；参考：《东北石油大学》2015年硕士论文

【摘要】：利用肇源南地区长47井区三维叠前偏移处理数据体,结合水平切片、相干体、属性体及多项彩色显示等技术,对肇源南地区进行了三维立体精细构造解释、储层预测等方面研究,结合剖面及平面断裂特征,分析了肇源南地区断裂发育特征及断裂期次,结合已钻井油水分布特点,探讨了不同期次断裂对扶余油层成藏的控制作用。从三维地震剖面看:纵向上主要呈“花状”组合模式和“堑垒”式组合模式。本研究区断层共发育有3期断层:分别为早白垩世早期早期断层、泉头组沉积末期─青山口组沉积初期的中期断层以及嫩江组末期及以后各沉积时期形成的断层。肇源南长47井区扶余油层断裂以中期断层为主,早期断层和晚期断层发育较少。肇源南地区扶余油层油气主要来源于三肇凹陷扶杨油层中的油在浮力作用下沿被河道砂体沟通的断裂密集带长距离侧向运移至肇源南地区。在断裂期次划分及砂体发育情况的基础上,利用已钻井的测井、试油等资料,对长47区块油水分布规律及油藏类型研究,得到油藏类型主要是以断层—岩性油藏为主。其主控因素为垂向运移断层遮挡控藏模式、先垂向后砂体侧向运移断层遮挡和岩性双重控藏模式。
[Abstract]:Using the data volume of 3D prestack migration processing in Chang47 well area of Zhaoyuannan area, combined with the techniques of horizontal slice, coherent volume, attribute volume and multi-color display, the three-dimensional fine structure interpretation of Zhaoyuannan area is carried out. Based on the study of reservoir prediction and combined with the characteristics of profile and plane faults, this paper analyzes the characteristics of fault development and fault periods in Zhaoyuannan area, and discusses the controlling effect of different faults on the reservoir formation of Fuyu reservoir in combination with the distribution characteristics of oil and water in drilling wells. From the three-dimensional seismic profile, there are mainly "flower-like" and "cut barrier" combination models in longitudinal. There are three faults in this study area: the early Cretaceous fault, the middle fault in the early Qantou formation, the middle fault in the early Qingshankou formation, and the fault formed in the late Nenjiang formation and later sedimentary periods. The fault of Fuyu reservoir in Nanchang 47 well area of Zhaoyuan is mainly intermediate fault, but the early fault and late fault are less developed. The oil and gas of Fuyu reservoir in Zhaoyuannan area is mainly derived from the long distance lateral migration of oil from Fuyang reservoir in Sanzhao sag along the faulted dense zone communicated by channel sand body to Zhaoyuannan area under buoyancy. On the basis of the division of fault stages and the development of sand bodies, the distribution of oil and water and reservoir types in Block Chang47 are studied by using well logging and oil testing data. The results show that the main reservoir types are fault-lithologic reservoirs. The main controlling factors are vertical migration fault occlusion and reservoir control mode, first vertical sand body lateral migration fault occlusion and lithologic dual reservoir control model.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13

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