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OALib Journal期刊
ISSN: 2333-9721
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分频波阻抗反演技术在塔中西部台内滩储层预测中的应用
Keywords: 碳酸盐岩,塔中北部斜坡区,台内滩,广义s变换,分频反演
Abstract:
？塔中i号坡折带西段台内滩储层主要发育在上奥陶统良里塔格组，其地震响应以弱振幅响应为主，与东段台缘礁特有的“丘状”外部轮廓和内部发育“串珠状强反射”的地震响应特征有明显差异。台内滩弱振幅储层的优势频段为15~25hz。优选广义s变换分频方法进行频谱分解，用20hz分频均方根振幅实现了台内滩储层的预测，通过带通滤波处理得到的优势频段内的纯波数据进行波阻抗反演，能有效地识别出塔中西部上奥陶统良里塔格组的台内滩储层，提高了台内滩储层的识别精度，取得了较好的应用效果。
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