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...

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প্রধান লেখক: Poliannikov, Oleg V., Willis, Mark E.
অন্যান্য লেখক: Massachusetts Institute of Technology. Earth Resources Laboratory
বিন্যাস: Technical Report
প্রকাশিত: Massachusetts Institute of Technology. Earth Resources Laboratory 2012
বিষয়গুলি:
অনলাইন ব্যবহার করুন:http://hdl.handle.net/1721.1/68206
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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.
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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