摘要
本文根据粘滞弹性理论导出粘滞弹性波有限元运动方程，研制成功有限元粘滞弹性波VSP地震模型程序，并对砂岩透镜体粘滞弹性波模型进行正演计算，获得了满意的结果。文中还从理论上分析了粘滞弹性对地震波的衰减特征，并与有限元数值解进行了对比，进一步证实本文所述有限元算法的正确性与有效性。
Finite-element equation of viscoelastic wave is derived from viscoelastic theory. Software for finite-element viscoelastic VSP modeling is developed successfully.Forward viscoelastic wave modeling for sandstone lens is conducted to bringgood result. Seismic wave attenuation due to viscoelasticity is analysed theoretically.Comparison between theoretical result and finite-element numerical result confirms that the finite-element viscoelastic VSP modeling is correct and effective.
出处
《石油地球物理勘探》
EI
CSCD
北大核心
1994年第6期724-732,共9页
Oil Geophysical Prospecting
关键词
有限元法
地震剖面法
粘滞
弹性波
地震勘探
seismic model,finite element method, vertical seismic profiling (VSP), viscoelastic wave
