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- W2891589870 abstract "Marchenko imaging is a methodology to image the subsurface with two important properties: (1)accurate amplitude and (2)free from free-surface and internal multiple artefacts. It requires an estimate of the first arrival of the focusing function which is commonly obtained from a macro velocity model. Inspired by this limitation, a projected Marchenko scheme has been introduced from which an internal multiple reflection elimination scheme has been derived. This internal multiple reflection elimination scheme requires an estimate of the two-way travel time surface of a selected horizon in the subsurface instead of a macro model. In order to make it totally model free we have rewritten the scheme by replacing the estimate of the two-way travel time surface by a fixed truncation for all traces. The output of the current scheme contains primary reflections without contamination from internal multiple reflections. We apply this scheme to a 2D numerical example to illustrate the procedure of this method and show how the internal multiple reflection eliminated data set can be retrieved and the migration image is improved." @default.
- W2891589870 created "2018-09-27" @default.
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- W2891589870 date "2018-12-01" @default.
- W2891589870 modified "2023-10-11" @default.
- W2891589870 title "Marchenko scheme based internal multiple reflection elimination in acoustic wavefield" @default.
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- W2891589870 doi "https://doi.org/10.1016/j.jappgeo.2018.09.024" @default.
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