子波干涉研究在地震解释中的应用  

Application of Wavelet Interference on Seismic Interpretation

作　　者：冯小英[1,2] 秦凤启[2] 刘浩强[2] 王孟华[2] 王亚[2] 邢福松 

机构地区：[1]长江大学地球物理与石油资源学院,湖北武汉430100 [2]中石油华北油田分公司地球物理勘探研究院,河北任丘062552

出　　处：《长江大学学报（自科版）（上旬）》2013年第6期72-75,80,共5页JOURNAL OF YANGTZE UNIVERSITY (NATURAL SCIENCE EDITION) SCI ＆ ENG

基　　金：中国石油天然气集团公司"十二五"科技滚动计划项目(2011D-3806)

摘　　要：受地震分辨率以及储层厚度的制约,地震子波一般都跨越多个层位而不是一个简单的薄层,这个层状系统导致了复杂的子波干涉现象,这种现象严重影响了地震解释的精度。通过在渤海湾盆地、二连、沁水盆地的多个工区开展正演模拟、离散合成记录标定等工作,剖析干涉现象产生机理及其解释陷阱,在地震解释中,运用拓频、振幅比等技术消弱干涉影响,有效地提高了地震解释的精度。Restricted by seismic resolution as well as the reservoir thickness,seismic waves are typical spans multiple layers rather than a simple thin layer,this layered system induces the complex sub-wave interference,this phenomenon has seriously affectes the accuracy of seismic interpretation.By means of forward modeling,synthetic calibration is carried out in Bohai Bay,Erlian,Qinshui Basins and more work areas.Profiling interference generation mechanism is analyzed for explaining the trap,in seismic interpretation,extension of frequency,amplitude ratio technologies are used to weaken interference effect,and effectively improve the accuracy of seismic interpretation.

关 键 词：子波干涉 正演模拟 离散合成记录 地震解释 拓频 振幅比 

分 类 号：P631.4[天文地球—地质矿产勘探]