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轮南油田三叠系TⅠ—TⅢ油组为辫状河三角洲沉积,具有砂体横向变化快,储层厚度薄,油藏埋藏深的特点,且低级序断层较为发育,对研究区断层及储层发育特征认识尚不清楚,给油田开发带来了较大的影响.为了达到增储上产及寻找新的滚动开发目标的目的,综合多种技术手段对油田精细构造和储层预测进行了研究.利用时间切片技术、相干体刻画技术、蚂蚁追踪技术三种技术相结合的方法对不同级序的断层进行了精细解释,结合精细变速成图技术,落实了轮南地区精细构造特征.采用地震属性优选分析,流体检测技术与测井曲线重构反演技术结合的方法进行储层预测.通过属性优选发现,振幅属性能较好反映储层的变化,在TⅡ油组衰减梯度属性能较好反映流体的分布特征.优选出SP与AC曲线进行曲线重构,最终得出高分辨率的波阻抗反演剖面,纵向分辨率与横向分辨率均较高.通过对以上多种技术的综合研究,为轮南地区油藏精细开发及滚动勘探提供了依据.
The Triassic TⅠ-TⅢ oilfield in Lunnan Oilfield is a braided delta that has the characteristics of rapid horizontal variation of sand body, thin reservoir thickness and deep buried oil reservoirs. The lower-sequence faults are more developed. The faults and reservoirs in the study area The understanding of the developmental characteristics of the layers is not yet clear and has a great impact on the development of the oilfield.In order to achieve the goal of increasing reserves and yielding and finding new rolling development targets, the fine structure and reservoir prediction of oilfields are comprehensively combined with various technical means Research.Using the combination of the three techniques of time slice, coherence body painting and ant tracing, the faults in different orders are explained in detail, and the fine structure features of Lunnan area are implemented with the fine shift map technology. Seismic attribute optimization analysis, fluid detection technique and well logging curve reconstruction inversion technique are combined to predict the reservoir.It is found through the attribute optimization that the amplitude attribute can better reflect the change of reservoir. In the TⅡ oil group, the attenuation gradient attribute can be compared Good reflection of the fluid distribution characteristics.Preferably the SP and AC curve curve reconstruction, and finally come to high-resolution wave impedance inversion section, vertical resolution and horizontal resolution Higher by more comprehensive study of multiple technologies, provides the basis for round Yugoslavia fine reservoir development and exploration scroll.