Reverse time migration (RTM) is a seismic imaging method to map the subsurface reflectivity
using recorded seismic waveforms. The practice in exploration seismology has long …

Multicomponent data usually are not processed with specifically designed procedures but
with procedures analogous to those used for single-component data. In isotropic media, the …

We use elastic least-squares reverse time migration (LSRTM) to invert for the reflectivity
images of P-and S-wave impedances. Elastic LSRTM solves the linearized elastic-wave …

To avoid the defocusing effects of propagating waves through salt and overburden with an
inaccurate overburden velocity model, we introduce a vertical seismic profiling (VSP) local …

Wavefield energy can be measured by the so-called energy norm. We have extended the
concept of “norm” to obtain the energy inner product between two related wavefields …

Time reversal of arbitrary, elastodynamic wavefields in partially open media can be
achieved by measuring the wavefield on a surface surrounding the medium and applying …

This paper presents a method for elastic and viscoelastic imaging of multicomponent
seismic data. The method is based on Claerbout's survey-sinking concept and the (visco) …

Least-square reverse time migration (LSRTM) has been widely accepted because of its
exceptional performance in mitigating migration artifacts and preserving the reflection …

From the elastic-wave equation and the energy conservation principle, we have derived an
energy norm that is applicable to imaging with elastic wavefields. Extending the concept of …

Based on the energy conservation principle, we derive a scalar imaging condition for
anisotropic elastic wavefield migration. Compared with conventional imaging conditions that …