摘要
本文从单分量位移弹性方程出发，统一论述了单程弹性波格格偏移和单程弹性波逆时偏移方法、并认传播特性和计算效率的角度，对单、双程弹性波道时偏移方注作了比较，结果表明，单程方法虽可保证波场单向传播并具有较好的成像效果，但计算效率相对较低。
Phase-shift and reverse-time migrations of single-way elastic waves are expounded by using elastic wave equation with single component displacement. The reverse-time migrations of single-way and two-way elastic waves are cornpared in their propagation characteristics and computation efficiencies. The comparison shows that the single way method causes unidirectional wave field and results ln better image but less effective computation.
出处
《石油地球物理勘探》
EI
CSCD
北大核心
1994年第4期449-455,461,共8页
Oil Geophysical Prospecting
关键词
弹性波
逆时偏移
相移偏移
地震波
elastic wave, single-way propagation, reverse-time migration,phase-shift migration
