Summary
Seismic imaging and inversion of complex geologies are driving the development of modelling tools with highfidelity wavefield representation. We recognize the importance of accurate modelling of wavefields for inversion studies in seismic exploration. Specifically, we seek the exact reproduction of propagating wavefields from surface recordings that honor all amplitude and phase effects in acoustic and elastic media.
In this paper, we describe an injection scheme for recorded seismograms in time-domain extrapolators that is an exact analytic solution of the wave equation. This method not only facilitates inversion studies for a refined characterization of subsurface targets, but also enables localized reproduction of wavefields in spatially confined sections of the subsurface model. The solution is derived for the general elastic wave equation and for specific applications in acoustic media.
This method is of great relevance for multicomponent recordings because it requires all components for a proper wavefield reconstruction and confinement.
Introduction
Seismic imaging and inversion of complex geologies are driving the development of modelling tools with highfidelity wavefield representation. We recognize the importance of accurate modelling of wavefields for inversion studies in seismic exploration. Specifically, we seek the exact reproduction of propagating wavefields from surface recordings that honor all amplitude and phase effects in acoustic and elastic media. In this paper, we describe an injection scheme for recorded seismograms in time-domain extrapolators that is an exact analytic solution of the wave equation. This method not only facilitates inversion studies for a refined characterization of subsurface targets, but also enables localized reproduction of wavefields in spatially confined sections of the subsurface model. The solution is derived for the general elastic wave equation and for specific applications in acoustic media. This method is of great relevance for multicomponent recordings because it requires all components for a proper wavefield reconstruction and confinement.
