Print Email Facebook Twitter Marchenko-Based Target Replacement, Accounting for All Orders of Multiple Reflections Title Marchenko-Based Target Replacement, Accounting for All Orders of Multiple Reflections Author Wapenaar, C.P.A. (TU Delft ImPhys/Acoustical Wavefield Imaging; TU Delft Applied Geophysics and Petrophysics) Staring, M. (TU Delft Applied Geophysics and Petrophysics) Date 2018-06-01 Abstract In seismic monitoring, one is usually interested in the response of a changing target zone, embedded in a static inhomogeneous medium. We introduce an efficient method that predicts reflection responses at the Earth's surface for different target-zone scenarios, from a single reflection response at the surface and a model of the changing target zone. The proposed process consists of two main steps. In the first step, the response of the original target zone is removed from the reflection response, using the Marchenko method. In the second step, the modelled response of a new target zone is inserted between the overburden and underburden responses. The method fully accounts for all orders of multiple scattering and, in the elastodynamic case, for wave conversion. For monitoring purposes, only the second step needs to be repeated for each target-zone model. Since the target zone covers only a small part of the entire medium, the proposed method is much more efficient than repeated modelling of the entire reflection response. Subject multiplesrepresentationsseismictime-lapse To reference this document use: http://resolver.tudelft.nl/uuid:13bf575c-66d4-4321-9329-29e99403660e DOI https://doi.org/10.1029/2017JB015208 ISSN 2169-9313 Source JGR Solid Earth, 123 (6), 4942-4964 Part of collection Institutional Repository Document type journal article Rights © 2018 C.P.A. Wapenaar, M. Staring Files PDF Wapenaar_et_al_2018_Journ ... _Earth.pdf 5.76 MB Close viewer /islandora/object/uuid:13bf575c-66d4-4321-9329-29e99403660e/datastream/OBJ/view