The purpose of the imaging condition in prestack depth migration is to obtain a reflectivity estimate with high spatial resolution and correct position. This goal can only be reached by perfectly matching an upgoing wavefield with a downgoing wavefield. At each depth of interest, the ratio of the upgoing (reflected) wavefield to the downgoing (incident) wavefield estimates the reflectivity. Usually, the upgoing wavefield is created from downward extrapolated surface data, while the downgoing wavefield is created by downward continuation of the source signature through a velocity model. The upgoing waves were influenced by earth attenuation, anisotropy, multiples, velocity and density of the medium, and etc. All these factors cannot be exact...
This thesis develops innovative procedures to address problems in imaging multichannel reflection se...
In complex areas, most seismic reflection imaging methods are confronted with the difficulty of obta...
With increased computational power, reverse-time prestack depth migration (RT-PSDM) has become a pre...
Blended source and/or simultaneous source acquisition for multi-offset and multi-azimuth VSP measure...
Until now, in most seismic imaging technologies, both surface and internal multiples are considered ...
This thesis embodies a mathematical, physical, and quantitative investigation into the imaging and a...
For vertical-seismic-profiling (VSP) measurements, the use of blended acquisition, with time-overlap...
It is common in shallow seismic studies for the compressional-wave velocity in unconsolidated sedime...
PSDM is increasingly becoming rule rather than exception in near surface seismic imaging when the go...
A standard procedure in processing vertical seismic profile (VSP) data is the separation of up-and d...
The purpose of the seismic processing step "migration" generally is to present a reliable section of...
The virtual source method has recently been proposed to image and monitor below complex and time-var...
A necessary requirement for a reliable seismic depth imaging is to have an accurate estimation of th...
3D borehole-related seismic data can provide us with accurate velocity models and high-resolution im...
True-amplitude depth migration means that the migration amplitudes of primary reflections are free f...
This thesis develops innovative procedures to address problems in imaging multichannel reflection se...
In complex areas, most seismic reflection imaging methods are confronted with the difficulty of obta...
With increased computational power, reverse-time prestack depth migration (RT-PSDM) has become a pre...
Blended source and/or simultaneous source acquisition for multi-offset and multi-azimuth VSP measure...
Until now, in most seismic imaging technologies, both surface and internal multiples are considered ...
This thesis embodies a mathematical, physical, and quantitative investigation into the imaging and a...
For vertical-seismic-profiling (VSP) measurements, the use of blended acquisition, with time-overlap...
It is common in shallow seismic studies for the compressional-wave velocity in unconsolidated sedime...
PSDM is increasingly becoming rule rather than exception in near surface seismic imaging when the go...
A standard procedure in processing vertical seismic profile (VSP) data is the separation of up-and d...
The purpose of the seismic processing step "migration" generally is to present a reliable section of...
The virtual source method has recently been proposed to image and monitor below complex and time-var...
A necessary requirement for a reliable seismic depth imaging is to have an accurate estimation of th...
3D borehole-related seismic data can provide us with accurate velocity models and high-resolution im...
True-amplitude depth migration means that the migration amplitudes of primary reflections are free f...
This thesis develops innovative procedures to address problems in imaging multichannel reflection se...
In complex areas, most seismic reflection imaging methods are confronted with the difficulty of obta...
With increased computational power, reverse-time prestack depth migration (RT-PSDM) has become a pre...