李素华;李兆影;

• 1:中国石化西南油气分公司勘探开发研究院

• 2:川庆钻探公司地质勘探开发研究院

摘要(Abstract)：

针对下沙溪庙组二、三砂层储层致密、低孔、低渗、横向非均质性强的特征,根据二、三砂层地震响应特征,利用谱分解技术将时间域地震信号变换到频率域,获得较原始地震数据更加丰富的数据信息;利用时频三原色进行分频融合及结合分频反演确定砂岩储层的空间分布规律,再利用相干、方位角、倾角、曲率等属性确定裂缝发育带.预测结果表明:地震分频技术分辨薄砂岩储层的能力明显优于常规地震属性的;构造高部位主要发育北西、北东向两组裂缝,构造翼部裂缝相对较发育.预测结果与钻井结果吻合,可指导下一步油气勘探,减少钻探风险.

关键词(KeyWords)：官渡构造;致密砂岩;谱分解;时频三原色;分频反演;裂缝预测;下沙溪庙组

Abstract:

Keywords:

基金项目(Foundation):国家科技重大专项(2011ZX05002-004-004)

作者(Author):李素华;李兆影;

Email:

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