摘要
利用曲率识别地震褶皱、断层、裂缝、溶蚀孔洞等地质构造是一种常用的地震属性分析技术。为了更加精细地刻画褶皱、断层等地质信息,提出了一种基于改进广义S变换的分频曲率提取方法,对地震数据进行分频处理。通过在单频剖面中求取最大正曲率和最小负曲率两种属性,达到识别地下地质构造和层位等地质信息的目的。
Curvature is a commonly used seismic attribute analysis technique, which can be used to identify folds,faults, fractures, dissolution voids and other geological structures. To describe the geological information more accurately, such as folds and faults, the frequency division curvature extraction is proposed to process the seismic data, based on improved generalized S Transform. The maximum positive curvature and minimum negative curvature are obtained in the single frequency sections to identify the geological information such as underground geological structures and horizons.
作者
严帝
严海滔
邬蒙蒙
周健
刘艺林
YAN Di;YAN Hai-Tao;WU Meng-meng;ZHOU Jian;LIU Yi-Lin(Geophysics School, Chengdu University of Technology, Chengdu Sichuan 610059, China)
出处
《油气地球物理》
2019年第1期68-70,共3页
Petroleum Geophysics
关键词
地震属性
分频曲率
改进广义S变换
地质构造
seismic attribute
frequency division curvature
improved generalized S Transform and geological struc ture
