高台子油田扶余油层精细构造解释

发布时间：2018-05-26 17:23

本文选题：精细地震解释 + 构造特征　；参考：《东北石油大学》2015年硕士论文

【摘要】：高台子油田扶余油层形成于盆地稳定沉降时期,以三角洲沉积为主。实施三维地震后,为充分利用新技术成果,更好地认识和精确地刻画该区内扶余油层成藏特征,进一步挖掘其潜能,为此,对高台子油田扶余油层的精细构造进行了研究。基于高分辨率层序地层学、沉积学理论指导,结合研究区内的测井、地震和录井等资料对高台子油田扶余油层的地层层序进行了综合分析,将油层细分为2个长期旋回,6个中期旋回和17个短期旋回,建立了高分辨率层序地层格架。运用研究区的三维地震资料,结合钻井、测井、井间地震资料,采用人工合成地震记录、三维地震数据可视化、相似性分析、空间趋势体分析、空间验证-剖面识别、等时切片、纵向剖面比例放大、多属性-多方法结合、趋势面分析等一系列技术对研究区扶余油层进行了精细层位解释、断层解释和微幅度构造解释。结果表明:扶余油层整体构造格局为“南高北低、东高西低、中央隆起”。顶面整体呈现出一长轴近北东方向背斜,区内断裂十分发育。规模较大断裂主要分布于背斜轴部,走向北西向,背斜两翼断裂次之。受断裂切割作用,背斜形态复杂化,呈现一系列的小背斜、断阶、地垒和地堑构造,并且有3个主要演化时期。结合已钻井分析,研究区以断背斜油藏、断层-岩性油藏、反向断阶油藏为主。综合构造研究成果及圈闭、储层、沉积相、成藏等条件、邻井生产情况等,确定了两个有利油气聚集的目标区块。
[Abstract]:The Fuyu reservoir in Gaotaizi Oilfield was formed during the stable subsidence of the basin, mainly delta deposits. After the 3D earthquake, in order to fully utilize the new technical achievements, better understand and accurately depict the reservoir forming characteristics of Fuyu reservoir in this area, and further tap its potential, the fine structure of Fuyu reservoir in Gaotaizi Oilfield is studied. Based on the theory of high-resolution sequence stratigraphy and sedimentology, the stratigraphic sequence of Fuyu reservoir in Gaotaizi Oilfield is comprehensively analyzed by combining well logging, seismic and logging data in the study area. The reservoir is subdivided into 2 long term cycles, 6 intermediate cycles and 17 short term cycles, and a high resolution sequence stratigraphic framework is established. Using 3D seismic data of the study area, combining drilling, logging and cross-well seismic data, using synthetic seismic records, 3D seismic data visualization, similarity analysis, spatial trend volume analysis, spatial validation-profile recognition, A series of techniques, such as isochronous slice, proportional magnification of longitudinal section, combination of multi-attribute and multi-method, and trend surface analysis, have been used to interpret fine layer, fault and micro-amplitude structure of Fuyu oil layer in the study area. The results show that the overall structural pattern of Fuyu reservoir is "south high and north low, east high and west low, central uplift". The whole top plane presents a long axis near NE anticline, and the faults in the area are well developed. The large scale faults mainly distribute in the back inclined axis, strike NW direction, and the anticline two wing faults take the second place. The anticline is complicated by fracture cutting and presents a series of small anticlines fault terraces and graben structures and there are three main stages of evolution. Combined with drilling analysis, the study area is mainly faulted diagonal reservoir, fault-lithologic reservoir and reverse fault stage reservoir. By synthesizing the structural research results, traps, reservoirs, sedimentary facies, reservoir forming conditions and the production situation of adjacent wells, two target blocks favorable for oil and gas accumulation have been determined.
【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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