C_1相干算法及其在三维地震资料处理解释中的应用

The Application of C_1 Coherence Algorithm in the Interpretation of 3D Seismic Exploration

C_1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。根据互相关原理,提出了相干体算法中二维和三维C_1算法的内容及其具体实现。通过对实际三维地震资料的处理,结合已知地质资料,证明C1相干技术在三维地震资料的断层解释方面有着明显的效果。

In this paper, the data format of 3D seismic data cube is introduced at first, then 2D and 3D C1 coherence algorithms are studied in detail. And a practical application program for 3D seismic data coherence processing is developed. The results of 3D seismic data processing, compared with known geologic data, showing that the C1 coherence algorithm is very effective for fault interpretation.