相干技术在构造形态自动识别中的应用

An Application of Coherence Technique in Structure Modality Automatic Recognition

相干技术的出现解决了在许多构造地区常规地震构造解释的精度不足的问题。第一代(C1)相干算法是计算每道的横测线和相邻纵测线的互相关,依据相干值来判断地层和岩性的横向不均匀性。本文利用C1相干算法进行合成地震记录计算,求出最大相干值,实现了对连续、不连续和低幅度构造的自动追踪.并对追踪结果求导得到构造的斜率图,进而识别出倾斜地层、断层和向斜等构造形态。

It had solved precision deficiency when coherence technique was appear in the conventionality prospect for earchquake explain problem.The first coherence arithmetic calculated each horizontal line and near vertical line one another relation.The according as coherence value estimated stratum and lithology horizontal asymmetry.The article made use of C1 coherence arithmetic calculate synthetic seismic records,gained the biggest coherence value,and realized self-motion pursue of concatenation,discontinuity low extent conformation.The pursue result calculated differential coefficient,gained conformation slope chart.We distinguished from conformation configuration of the tilt fault,syncline and so on.