消除倾角影响的振幅曲率及其加权算法
发布时间：2018-08-07 11:02
【摘要】：为提高振幅曲率的精度和计算效率,提出基于最小均方根振幅差的倾角搜索算法,沿着求取的地层方向计算振幅曲率。传统振幅曲率通常采用相干能量进行加权,需要构造协方差矩阵并求其特征值,文中使用中心道的均方根振幅对振幅曲率进行加权,避免上述矩阵运算,提高了计算效率。实际数据测试表明了该方法的有效性和适用性。
[Abstract]:In order to improve the accuracy and efficiency of amplitude curvature, a dip search algorithm based on minimum mean square root amplitude difference is proposed to calculate amplitude curvature along the direction of stratum. The traditional amplitude curvature is usually weighted by coherent energy, and covariance matrix needs to be constructed and its eigenvalue is obtained. In this paper, amplitude curvature is weighted by the root-mean-square amplitude of the center track, which avoids the matrix operation and improves the computational efficiency. The actual data test shows the effectiveness and applicability of the method.
【作者单位】： 中国石油勘探开发研究院;
【基金】：国家“十二五”科技重大专项“海相碳酸盐岩储层地震描述与油气藏有效预测技术研究”(2011ZX05004-003) 中国石油勘探开发研究院项目“基于数据驱动的非线性地震储层预测技术研究”(101002kt0b52135)联合资助
【分类号】：P631.44
，
本文编号：2169820
[Abstract]:In order to improve the accuracy and efficiency of amplitude curvature, a dip search algorithm based on minimum mean square root amplitude difference is proposed to calculate amplitude curvature along the direction of stratum. The traditional amplitude curvature is usually weighted by coherent energy, and covariance matrix needs to be constructed and its eigenvalue is obtained. In this paper, amplitude curvature is weighted by the root-mean-square amplitude of the center track, which avoids the matrix operation and improves the computational efficiency. The actual data test shows the effectiveness and applicability of the method.
【作者单位】： 中国石油勘探开发研究院;
【基金】：国家“十二五”科技重大专项“海相碳酸盐岩储层地震描述与油气藏有效预测技术研究”(2011ZX05004-003) 中国石油勘探开发研究院项目“基于数据驱动的非线性地震储层预测技术研究”(101002kt0b52135)联合资助
【分类号】：P631.44
，
本文编号：2169820
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