Full traveltime inversion in source domain

Lu Liu, Bowen Guo, Yi Luo

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

Abstract

This paper presents a new method of source-domain full traveltime inversion (FTI). The objective of this study is automatically building near-surface velocity using the early arrivals of seismic data. This method can generate the inverted velocity that can kinetically best match the reconstructed plane-wave source of early arrivals with true source in source domain. It does not require picking first arrivals for tomography, which is one of the most challenging aspects of ray-based tomographic inversion. Besides, this method does not need estimate the source wavelet, which is a necessity for receiver-domain wave-equation velocity inversion. Furthermore, we applied our method on one synthetic dataset; the results show our method could generate a reasonable background velocity even when shingling first arrivals exist and could provide a good initial velocity for the conventional full waveform inversion (FWI).
Original languageEnglish (US)
Title of host publicationInternational Geophysical Conference, Qingdao, China, 17-20 April 2017
PublisherSociety of Exploration Geophysicists
DOIs
StatePublished - May 31 2017

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