摘要
在给定的理论模型下,研究了地层各向异性的存在对地震波传播速度的影响。用一种逐段迭代的射线追踪方法对其进行走时正演,得到了相应的时距曲线。并用该时距曲线结果,与基于各向同性介质模型假设所得到的时距曲线结果,进行对比,验证了所采用的射线追踪方法的精确性和有效性。该射线追踪方法理论上适用于任何界面模型,可以追踪到任意给定的精度,是一种快速、高效,并易于操作的射线追踪方法。
The paper discusses the anisotropy effect for seismic wave propagation velocity based upon a given theory model and a segmental iteration ray-tracing method is adopted to forward traveltime of seismic wave of the model. By comparing two calculated time-distance curves based transversely isotropy medium and isotropy medium, respectivly, the validity and accuracy of segmental iteration ray-tracing method are proved and show that it is a effective and practicable ray-tracing method as it is applicable for any interface model on theory and can achieve any desired precise.
出处
《物探化探计算技术》
CAS
CSCD
2008年第3期178-184,167,共7页
Computing Techniques For Geophysical and Geochemical Exploration
关键词
横向各向同性
速度
射线追踪
逐段迭代
时距曲线
transversely isotropy
velocity
ray-tracing
segmental iteration
time-distance curve
