地震观测系统评价的波动方程方向照明方法

Seismic acquisition geometry evaluation method based on wave equation directional illumination technique

针对基于层状介质假设的常规地震观测系统评价方法在复杂构造区所受的局限,本文根据地震波场传播原理,结合反射地震勘探激发接收对地下复杂构造倾向的适应性,提出了一种适用于复杂构造区的基于波动方程方向照明的地震观测系统评价方法。该方法综合考虑了炮点和检波点对地下构造的方向照明,而且能在目标区进行针对地下构造倾角和反射角的地震观测系统评价。

Routine seismic geometry evaluation method based on stratified medium assumption has limitation in complex structure area,based on seismic wave propagation theory and by integrating the adaptability of the shooting and receiving conditions in reflection seismic exploration to complex subsurface structure dip,a new seismic geometry evaluation method which is based on wave equation directional illumination and is feasible in complex structure areas was proposed in this paper.With the new method the shot-points and receiver-points directional illumination to subsurface structures was synthetically considered,and the seismic geometry can be evaluated for the dip angle and the reflection angle of subsurface structure in the target zone.