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dc.contributor.authorZhang, Dongliang
dc.contributor.authorDai, Wei
dc.contributor.authorGe, Z.
dc.contributor.authorSchuster, Gerard T.
dc.date.accessioned2015-08-04T07:11:04Z
dc.date.available2015-08-04T07:11:04Z
dc.date.issued2013
dc.identifier.citationZhang, D. L., Dai, W., Ge, Z., & Schuster, G. (2013). Multiples Waveform Inversion. London 2013, 75th Eage Conference En Exhibition Incorporating SPE Europec. doi:10.3997/2214-4609.20130836
dc.identifier.isbn9781629937915
dc.identifier.doi10.3997/2214-4609.20130836
dc.identifier.urihttp://hdl.handle.net/10754/564654
dc.description.abstractTo increase the illumination of the subsurface and to eliminate the dependency of FWI on the source wavelet, we propose multiples waveform inversion (MWI) that transforms each hydrophone into a virtual point source with a time history equal to that of the recorded data. These virtual sources are used to numerically generate downgoing wavefields that are correlated with the backprojected surface-related multiples to give the migration image. Since the recorded data are treated as the virtual sources, knowledge of the source wavelet is not required, and the subsurface illumination is greatly enhanced because the entire free surface acts as an extended source compared to the radiation pattern of a traditional point source. Numerical tests on the Marmousi2 model show that the convergence rate and the spatial resolution of MWI is, respectively, faster and more accurate then FWI. The potential pitfall with this method is that the multiples undergo more than one roundtrip to the surface, which increases attenuation and reduces spatial resolution. This can lead to less resolved tomograms compared to conventional FWI. The possible solution is to combine both FWI and MWI in inverting for the subsurface velocity distribution.
dc.publisherEAGE Publications
dc.titleMultiples waveform inversion
dc.typeConference Paper
dc.contributor.departmentCenter for Subsurface Imaging and Fluid Modeling
dc.contributor.departmentEarth Science and Engineering Program
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalLondon 2013, 75th eage conference en exhibition incorporating SPE Europec
dc.conference.date10 June 2013 through 13 June 2013
dc.conference.name75th European Association of Geoscientists and Engineers Conference and Exhibition 2013 Incorporating SPE EUROPEC 2013: Changing Frontiers
kaust.personDai, Wei
kaust.personSchuster, Gerard T.
kaust.personZhang, Dongliang
kaust.personGe, Z.


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