Data normalization strategies for full-waveform inversion

TitleData normalization strategies for full-waveform inversion
Publication TypeConference
Year of Publication2017
AuthorsMathias Louboutin, LluĂ­s Guasch, Felix J. Herrmann
Conference NameEAGE Annual Conference Proceedings
KeywordsEAGE, FWI, inversion, nonlinear, normalization

Amplitude mismatch is an inherent problem in seismic inversion. Most of the source estimation techniques are associated with amplitude uncertainty due to incomplete representation of the physics or estimation method parameters. Rewriting the inversion problem in an amplitude free formulation allows to mitigate the amplitude ambiguity and help the inversion process to converge. We present in this work two different strategies to lessen amplitude effects in seismic inversion, derive the corresponding update directions and show how we handle scaling error correctly in both the objective function and the gradient.


(EAGE, Paris)

Citation Keylouboutin2017EAGEdns