中文摘要：

断层解释是油气勘探构造解释的关键,断层解释的精确性和合理性直接影响构造解释的精度.相干技术是基于相邻地震道之间相似性的算法技术,可以有效地压制地震信号的连续性,突出其中的不连续性.但是传统的相干算法受噪声的影响较大,不能很好地处理含有较大噪声情形下断层精确检测的问题.本文利用高阶统计量对高斯噪声不敏感的特点,与多道相似的第二代相干算法相结合,提出了一种新的基于高阶统计量的多道相似相干算法,并将这种算法推广到了高阶统计量的特征值相干算法的形式.真实实验数据结果表明,该算法有很好的抑制噪声能力,提高了相干体算法的分辨率.

英文摘要：

Fault interpretation is the key step in oil and gas exploration structure interpretation,and the accuracy and rationality of the fault interpretation has a direct impact on the precision of tectonic interpretation. Coherence technology is based on a similar algorithm between adjacent seismic trace data,whichhas a great effectively suppressionin continuously seismic signal,and highlight the discontinuity. However traditional coherence algorithm is sensitive to noise. On the basis of Generation-II coherence algorithm,this paper proposed a new coherence algorithm based on higher order statistics using the characteristics of higher-order statistics,which is not sensitive to Gaussian noise. And we deduce the algorithm to a form which is similar to generation-III coherence algorithm. The real test results showed that the higher resolution and good performance of the new approach.