The recent introduction of novel redatuming techniques, based on the principles of time-reversed ... more The recent introduction of novel redatuming techniques, based on the principles of time-reversed acoustics and source-receiver reciprocity, has allowed seismic measurements collected on one datum to be extrapolated to another datum. Under favourable conditions, this process can approximately remove the complicated overburden structures without any velocity information. We introduce an elastic redatuming scheme for walkaway vertical seismic profiles (WVSPs) based on these principles, using P- and S-wave potentials, which are derived from the spatial derivatives of the measured wavefields. Additional field acquisition is utilized to directly measure these derivatives. We test our elastic redatuming scheme on data simulated with an elastic finite difference algorithm. The elastodynamic Green's functions between multicomponent receivers in a borehole are then extracted from data recorded using multicomponent (P- and S-wave) sources at the surface. The wavefields are redatumed as four parts: two related to the P-wave potential, and another two related to the S-wave potential. These parts are migrated separately and form four independent images of the salt dome flank, providing a more complete elastic description of the subsurface.
Summary We present results of applying seismic interferometry to image dipping sediments abutting... more Summary We present results of applying seismic interferometry to image dipping sediments abutting a salt dome. We create a set of synthetic traces representing a multi-level, walk away Vertical Seismic Profile (VSP) for a model composed of a simplified Gulf of Mexico vertical-velocity gradient and an embedded overhanging salt dome. The sediment reflectors in the model dip up towards the salt dome flank. To process these data, we create a set of redatummed traces using seismic interferometry. This is done without having to perform ...
Statics and near‐field scattering. [SEG Technical Program Expanded Abstracts 20, 2029 (2001)]. Xa... more Statics and near‐field scattering. [SEG Technical Program Expanded Abstracts 20, 2029 (2001)]. Xander H. Campman, C. Dwi Riyanti, Gérard C. Herman.
The recent introduction of novel redatuming techniques, based on the principles of time-reversed ... more The recent introduction of novel redatuming techniques, based on the principles of time-reversed acoustics and source-receiver reciprocity, has allowed seismic measurements collected on one datum to be extrapolated to another datum. Under favourable conditions, this process can approximately remove the complicated overburden structures without any velocity information. We introduce an elastic redatuming scheme for walkaway vertical seismic profiles (WVSPs) based on these principles, using P- and S-wave potentials, which are derived from the spatial derivatives of the measured wavefields. Additional field acquisition is utilized to directly measure these derivatives. We test our elastic redatuming scheme on data simulated with an elastic finite difference algorithm. The elastodynamic Green's functions between multicomponent receivers in a borehole are then extracted from data recorded using multicomponent (P- and S-wave) sources at the surface. The wavefields are redatumed as four parts: two related to the P-wave potential, and another two related to the S-wave potential. These parts are migrated separately and form four independent images of the salt dome flank, providing a more complete elastic description of the subsurface.
Summary We present results of applying seismic interferometry to image dipping sediments abutting... more Summary We present results of applying seismic interferometry to image dipping sediments abutting a salt dome. We create a set of synthetic traces representing a multi-level, walk away Vertical Seismic Profile (VSP) for a model composed of a simplified Gulf of Mexico vertical-velocity gradient and an embedded overhanging salt dome. The sediment reflectors in the model dip up towards the salt dome flank. To process these data, we create a set of redatummed traces using seismic interferometry. This is done without having to perform ...
Statics and near‐field scattering. [SEG Technical Program Expanded Abstracts 20, 2029 (2001)]. Xa... more Statics and near‐field scattering. [SEG Technical Program Expanded Abstracts 20, 2029 (2001)]. Xander H. Campman, C. Dwi Riyanti, Gérard C. Herman.
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