Improved Green’s functions from seismic interferometry
Under certain theoretical assumptions, the theory of seismic interferometry allows the construction of artificial (or virtual) sources and receivers at the locations of receivers in a physical experiment. This is done by redatuming the physical sources to be at the locations of the physical recei...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Technical Report |
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Massachusetts Institute of Technology. Earth Resources Laboratory
2012
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| Online Access: | http://hdl.handle.net/1721.1/68206 |
| _version_ | 1826197293757366272 |
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| author | Poliannikov, Oleg V. Willis, Mark E. |
| author2 | Massachusetts Institute of Technology. Earth Resources Laboratory |
| author_facet | Massachusetts Institute of Technology. Earth Resources Laboratory Poliannikov, Oleg V. Willis, Mark E. |
| author_sort | Poliannikov, Oleg V. |
| collection | MIT |
| description | Under certain theoretical assumptions, the theory of seismic interferometry allows the construction of artificial (or virtual) sources and
receivers at the locations of receivers in a physical experiment. This
is done by redatuming the physical sources to be at the locations of
the physical receivers. Each redatumed trace is formed by stacking
the cross-correlations of appropriate recorded traces from each physical shot. For the resulting stacked traces to be a valid approximation
certain requirements, like an adequate number of surface sources with
a small enough spacing in the acquisition geometry, must be met. If
these requirements are not met, the resulting virtual shot gather will
contain artifacts. In this paper, we analyze both the sets of correlated
traces (correlograms) and their stack. We observe that it is possible
to reduce certain artifacts in the stacked traces by novel filtering operations. These filtering operations may have broad utility in all of
seismic interferometric applications. |
| first_indexed | 2024-09-23T10:45:50Z |
| format | Technical Report |
| id | mit-1721.1/68206 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T10:45:50Z |
| publishDate | 2012 |
| publisher | Massachusetts Institute of Technology. Earth Resources Laboratory |
| record_format | dspace |
| spelling | mit-1721.1/682062019-04-12T21:45:20Z Improved Green’s functions from seismic interferometry Poliannikov, Oleg V. Willis, Mark E. Massachusetts Institute of Technology. Earth Resources Laboratory Poliannikov, Oleg V. Willis, Mark E. Interferometry Imaging Under certain theoretical assumptions, the theory of seismic interferometry allows the construction of artificial (or virtual) sources and receivers at the locations of receivers in a physical experiment. This is done by redatuming the physical sources to be at the locations of the physical receivers. Each redatumed trace is formed by stacking the cross-correlations of appropriate recorded traces from each physical shot. For the resulting stacked traces to be a valid approximation certain requirements, like an adequate number of surface sources with a small enough spacing in the acquisition geometry, must be met. If these requirements are not met, the resulting virtual shot gather will contain artifacts. In this paper, we analyze both the sets of correlated traces (correlograms) and their stack. We observe that it is possible to reduce certain artifacts in the stacked traces by novel filtering operations. These filtering operations may have broad utility in all of seismic interferometric applications. Massachusetts Institute of Technology. Earth Resources Laboratory 2012-01-11T23:13:59Z 2012-01-11T23:13:59Z 2008-06-16 Technical Report http://hdl.handle.net/1721.1/68206 Earth Resources Laboratory Industry Consortia Annual Report;2008-06 application/pdf Massachusetts Institute of Technology. Earth Resources Laboratory |
| spellingShingle | Interferometry Imaging Poliannikov, Oleg V. Willis, Mark E. Improved Green’s functions from seismic interferometry |
| title | Improved Green’s functions from seismic interferometry |
| title_full | Improved Green’s functions from seismic interferometry |
| title_fullStr | Improved Green’s functions from seismic interferometry |
| title_full_unstemmed | Improved Green’s functions from seismic interferometry |
| title_short | Improved Green’s functions from seismic interferometry |
| title_sort | improved green s functions from seismic interferometry |
| topic | Interferometry Imaging |
| url | http://hdl.handle.net/1721.1/68206 |
| work_keys_str_mv | AT poliannikovolegv improvedgreensfunctionsfromseismicinterferometry AT willismarke improvedgreensfunctionsfromseismicinterferometry |