Relating source-receiver interferometry to an inverse-scattering series to derive a new method to estimate internal multiples

Katrin Löer, Andrew Curtis, Giovanni Angelo Meles

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

We have evaluated an explicit relationship between the representations of internal multiples by source-receiver interferometry and an inverse-scattering series. This provides a new insight into the interaction of different terms in each of these internal multiple prediction equations and explains why amplitudes of estimated multiples are typically incorrect. A downside of the existing representations is that their computational cost is extremely high, which can be a precluding factor especially in 3D applications. Using our insight from source-receiver interferometry, we have developed an alternative, computationally more efficient way to predict internal multiples. The new formula is based on crosscorrelation and convolution: two operations that are computationally cheap and routinely used in interferometric methods.We have compared the results of the standard and the alternative formulas qualitatively in terms of the constructed wavefields and quantitatively in terms of the computational cost using examples from a synthetic data set.

Original languageEnglish
Pages (from-to)Q27-Q40
Number of pages14
JournalGeophysics
Volume81
Issue number3
Early online date4 Apr 2016
DOIs
Publication statusPublished - 1 May 2016

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