摘要
TI介质是常见的介质类型.当道集的排列长度远大于勘探目的层的深度时,P波走时资料包含的信息可以用来确定TI介质的各向异性参数.TI介质的CMP道集中,速度随炮检距而变化,可以从这种变化中求出Vnmo和η.通过模型试验说明,从TI介质P波资料的CMP道集求取Vnmo和η的方法是可取的.
Transversely isotropy(TI) is a general kind of media. When the length of CMP is great larger then the depth of the reflector, the information included in the Time-Distance curve can be used to get the anisotropy parameters of the TI media. Several kinds of velocity with TI media are discussed. An anisotropy media model and an isotropy media model is tested for the double-parameter Velocity analysis.
出处
《地球物理学进展》
CSCD
2004年第1期113-118,共6页
Progress in Geophysics
基金
国家自然科学基金项目(40244022)和(40244404)联合赞助.
关键词
TI介质
速度分析
transversely isotropic media , velocity analysis
