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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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滩坝砂储层地震解释存在的问题及对策
Keywords: 滩坝砂,地震属性,hht,三参数小波,能量半时,属性融合
Abstract:
？滩坝砂油藏是一类特殊的低渗透薄互层油藏，储层埋深大、横向变化快、地震资料纵向分辨率低，用常规方法很难实现精细解释。本文对滩坝砂储层地震解释中存在的主要问题进行了分析，在此基础上，集中研究了基于希尔伯特—黄变换（hht）的滩坝砂储层拓频、基于三参数小波的滩坝砂薄互层检测、能量半时特色属性分析、古地貌与地震属性融合显示这4项对策。研究结果表明：①基于hht的拓频方法，能较好地展宽目标层频带，增强滩坝砂弱信号的能量；②以三参数小波为分析小波，可以较好地刻画滩坝砂薄互层的内部结构；③能量半时属性是整体描述滩坝砂储层的最佳属性；④将古地貌信息作为一种属性参与属性融合，是研究滩坝砂储层的一种特色技术，值得推广应用。
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