Synthesising singly-scattered waves (primaries) from multiply-scattered data

G. A. Meles*, C. Da Costa Filho, A. Curtis

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

One-dimensional inverse scattering problems are governed by the Marchenko equation which relates scattered wavefields to perturbations in the medium of propagation.The same equation also governs the theory of focusing - the ability to craft an incident wavefield which focuses at a specific time and place in the medium.Focusing wavefields may be obtained by solving the Marchenko equation using a method that requires only a reflection response measured at one side of the medium, and an estimate of the traveltime of the wave to the focusing location.We show how these focusing wavefields can be used to estimate new reflection responses which only involve primaries in two different ways.We demonstrate our method in a 1D medium with 10 discrete velocity contrasts.The resulting primaries-only wavefields produce excellent images of the medium using standard reverse-time migration.

Original languageEnglish
Title of host publication79th EAGE Conference and Exhibition 2017
PublisherEuropean Association of Geoscientists and Engineers, EAGE
ISBN (Electronic)9789462822177
Publication statusPublished - 1 Jan 2017
Event79th EAGE Conference and Exhibition 2017: Energy, Technology, Sustainability - Time to Open a New Chapter - Paris, France
Duration: 12 Jun 201715 Jun 2017

Conference

Conference79th EAGE Conference and Exhibition 2017: Energy, Technology, Sustainability - Time to Open a New Chapter
Country/TerritoryFrance
CityParis
Period12/06/1715/06/17

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