摘要
结合MB凸起油气勘查项目,总结断层解释方法:既要依据地震时间剖面特征来分析判断,更要了解盆地范围内应力场、变形机理以及工区范围内的构造样式.针对微小断层识别困难这一问题,采取多种技术手段,包括:(1)叠后目标处理提高地震资料对小断层的分辨能力;(2)正演模型分析指导小断层的解释;(3)相干数据体水平切片和近反射道几何特征分析识别微小断层;(4)三维数据体任意线剖面检验微小断层,识别了常规地震剖面难以确定的小断层,达到了断层精细解释的目的.
Based on oil-gas exploration project in MB uplift, it is concluded that identifying faults considers not only faults performance in the seismic horizontal time profile, but also stress field of the basin, strain mechanism and structural style of the project. In order to identifying little faults of the project, author makes use of multi-methods including poststack target process, forward model analysis, horizontal time slice of coherence cube, near-reflect-trace geometry character and arbitray line of 3-D data cube profile analysis, finds more little faults and fulfills the detail faults interpretation.
出处
《地球物理学进展》
CSCD
北大核心
2008年第2期515-521,共7页
Progress in Geophysics
基金
国家"863"课题(2006AA06Z111)资助
关键词
断层
相干性
正演模型
构造解释
faults, coherence, forward model, structural interpretation
