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老河口油田是在平缓单斜背景上发育的典型的隐蔽性岩性油藏。文中针对该区地层平、断层少的地质特征,以高品质地震资料为基础,利用小波域信号重构处理方法,对等时地层单元内河流相储层的岩石物理学特征和储层正演模型特征进行了分析。结合水平切片技术和三维可视化技术对砂体进行了追踪解释,并根据砂体吸收系数的特征,利用叠后信息进行油气判识,总结出一套针对馆陶组岩性油藏描述的方法。
The Laohekou oilfield is a typical concealed lithologic reservoir developed on a gentle monoclinic background. In this paper, based on the high-quality seismic data and using wavelet domain signal reconstruction methods, the geophysical characteristics and reservoir forward modeling of fluvial facies reservoirs in the isochronous stratigraphic units are analyzed in this paper. Model features were analyzed. Combined with horizontal slice technology and 3D visualization technology, the sand body was traced and interpreted. Based on the characteristics of sand body absorption coefficient, the post-stack information was used to identify oil and gas, and a set of methods for describing the Guantao Formation lithologic reservoir was summarized.