Comparison of different traveltime approximations for VTI media in context of poststack diffraction imaging
Diffractions carry valuable information about local discontinuities and small scale objects in the subsurface. They are still not commonly used in the process of geological interpretation. Many diffraction imaging techniques have been developed and applied for isotropic media while relatively few te...
| Main Authors: | , , |
|---|---|
| Format: | Conference Paper |
| Published: |
2016
|
| Online Access: | http://hdl.handle.net/20.500.11937/54573 |
| _version_ | 1848759406066401280 |
|---|---|
| author | Khoshnavaz, M. Bona, Andrej Urosevic, Milovan |
| author_facet | Khoshnavaz, M. Bona, Andrej Urosevic, Milovan |
| author_sort | Khoshnavaz, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Diffractions carry valuable information about local discontinuities and small scale objects in the subsurface. They are still not commonly used in the process of geological interpretation. Many diffraction imaging techniques have been developed and applied for isotropic media while relatively few techniques have been developed for anisotropic media. Ignoring anisotropy can result in low resolution images with wrongly positioned or spurious diffrators. In this article, we propose to take anisotropy into account in 2D poststack domain by considering P-wave non-hyperbolic diffraction traveltime approximations for VTI media, previously developed for reflection seismology. Accuracy of final images are directly connected to the accuracy diffraction traveltime approximations. We also quantified the accuracy of six different approximations, including normal moveout approximation, by application to 2D synthetic data examples. |
| first_indexed | 2025-11-14T09:59:22Z |
| format | Conference Paper |
| id | curtin-20.500.11937-54573 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:59:22Z |
| publishDate | 2016 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-545732017-07-27T05:21:27Z Comparison of different traveltime approximations for VTI media in context of poststack diffraction imaging Khoshnavaz, M. Bona, Andrej Urosevic, Milovan Diffractions carry valuable information about local discontinuities and small scale objects in the subsurface. They are still not commonly used in the process of geological interpretation. Many diffraction imaging techniques have been developed and applied for isotropic media while relatively few techniques have been developed for anisotropic media. Ignoring anisotropy can result in low resolution images with wrongly positioned or spurious diffrators. In this article, we propose to take anisotropy into account in 2D poststack domain by considering P-wave non-hyperbolic diffraction traveltime approximations for VTI media, previously developed for reflection seismology. Accuracy of final images are directly connected to the accuracy diffraction traveltime approximations. We also quantified the accuracy of six different approximations, including normal moveout approximation, by application to 2D synthetic data examples. 2016 Conference Paper http://hdl.handle.net/20.500.11937/54573 restricted |
| spellingShingle | Khoshnavaz, M. Bona, Andrej Urosevic, Milovan Comparison of different traveltime approximations for VTI media in context of poststack diffraction imaging |
| title | Comparison of different traveltime approximations for VTI media in context of poststack diffraction imaging |
| title_full | Comparison of different traveltime approximations for VTI media in context of poststack diffraction imaging |
| title_fullStr | Comparison of different traveltime approximations for VTI media in context of poststack diffraction imaging |
| title_full_unstemmed | Comparison of different traveltime approximations for VTI media in context of poststack diffraction imaging |
| title_short | Comparison of different traveltime approximations for VTI media in context of poststack diffraction imaging |
| title_sort | comparison of different traveltime approximations for vti media in context of poststack diffraction imaging |
| url | http://hdl.handle.net/20.500.11937/54573 |