改进的第三代相干算法及应用  

Modified coherency cube of the third generation and its applications

作　　者：马瑾环[1] 陈国俊[1] 吴志高[1] 何亚伟[1] 刘丽[1] 

机构地区：[1]中国石油化工股份有限公司中原油田分公司勘探开发科学研究院,河南濮阳457001

出　　处：《勘探地球物理进展》2007年第4期286-291,296,共7页Progress in Exploration Geophysics

基　　金：中国石油化工集团总公司"十五"重点科技开发项目(P03039)资助

摘　　要：在讨论相干技术发展及三代相干算法优缺点的基础上,介绍了改进的第三代相干算法。应用自行开发的相干软件对多个油气勘探和开发区块的三维地震资料进行处理、分析,对相干时窗长度、相关道数等参数对算法效果的影响及相干体对断层、异常地质体的识别,以及解释方法进行了探讨。应用实例证明,改进的第三代相干算法抗干扰能力强,横向分辨率高,不仅适用于倾斜地层,而且对断层尤其对小断层、异常地质体具有较高的检测能力,是油气勘探和开发的一项有效和实用的技术。This paper presents a modified coherency cube of the third generation based on a review of coherency cube techniques and an analysis of the strong points and shortcomings of the third generation coherency cube. The influences of different parameters such as length of correlation window and correlation traces and the identification and interpretation of fault and geologic bodies were investigated. Practices have proved that the modified coherency cube of the third generation is of high tolerance to interferences and high lateral resolution. It can effectively detect oblique strata, faults, especially minor faults, and other geological bodies.

关 键 词：改进的第三代相干算法 参数选择 断层 地质异常体 应用实例 

分 类 号：P631.4[天文地球—地质矿产勘探]