【摘要】 地震分频技术是一种基于频谱分析的地震成像方法,可揭示地层的纵向整体变化规律、沉积相带的空间演变模式,并能描绘与分析储集层厚度分布,定量检测单砂体级别的薄互层砂体。K油田530井区侏罗系八道湾组主力含油层系为辫状河流相砂泥岩沉积,储集层厚度、物性变化大,地震资料品质不理想,用常规地球物理预测方法识别沉积相带与预测储集层厚度多解性强、难度大。在该区的精细储集层预测中,应用地震分频技术,揭示了沉积相单元的时空演化和物源区,建立了储集层预测模式,获得了显著的地质效果。图4参10更多还原

【Abstract】 The seismic spectral decomposition technology is a new seismic imaging analysis method based on the spectral analysis technology, it can reveal the changing law of stratigraphy in vertical direction and 3-D evolution pattern of sedimentary facies.The quantificational description and analysis are carried out from reservoir to single sand set unit.In the primary oil-bearing stratum of Jurassic Badaowan sets at the Well 530 area of the K Oilfield,the seismic geologic condition is of changing reservoir thickness and geophysical property,poor seismic data quality,and it is difficult to identify and predict reservoir facies by the routine seismic property analysis method.The seismic spectral decomposition technology has been creatively introduced into the new fine reservoir description,therefore,the 3-D evolution pattern of sediment facies is showed,and the prediction pattern of reservoir and good results are obtained.更多还原