Fast repeated seismic modelling of local complex targets.
Fast repeated seismic modelling of local complex targets.
复制标题
局部复杂目标的快速重复地震建模。
DOI：
10.1190/1.1820183
复制
发表时间：
1998
期刊：
影响因子：
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通讯作者：
T. Johansen
中科院分区：
文献类型：
--
作者：
H. Gjøystdal;I. Lecomte;A. E. Mjelva;F. Maaø;K. Hokstad;T. Johansen
摘要提出了一种新的模拟方案，用于快速重复计算结构简单覆盖层下局部复杂目标的地震响应。该方法将岩石物理建模系统与光线追踪/有限差分混合方案相结合。声波和弹性波都可以建模。对于所示的示例，与全局有限差分计算相比，新的建模方案需要大约2.5%的CPU资源和1.7%的网格大小。
Summary A new modelling scheme is described, for very fast repeated calculation of the seismic response of a local complex target below a structurally simpler overburden. The method combines a petrophysical modelling system with a hybrid ray tracing/finite difference scheme. Both acoustic and elastic waves can be modelled. For the example shown, the new modelling scheme required about 2.5% of CPU resources and 1.7% of the grid size when compared to the global finite difference calculation.