Print Email Facebook Twitter Retrieving Reservoir-only Reflection and Transmission Responses from Target-enclosing Extended Images Title Retrieving Reservoir-only Reflection and Transmission Responses from Target-enclosing Extended Images Author Vasconcelos, I. (Universiteit Utrecht) Ravasi, M. (Statoil) van der Neut, J.R. (TU Delft Applied Geophysics and Petrophysics) Kritski, A. (Statoil) Cui, T. (Schlumberger Gould Research Center) Date 2017 Abstract The Marchenko redatuming approach reconstructs wavefields at depth that contain not only primary reflections, but also multiply-scattered waves. While such fields in principle contain additional subsurface information, conventional imaging approaches cannot tap into the information encoded in internal multiples in a trivial manner. We discuss a new approach that uses the full information contained in Marchenko-redatumed fields, whose output are local reflection and transmission responses that fully enclose a target volume at depth, without contributions from over- or under-burden structures. To obtain the Target-Enclosing Extended Images (TEEIs) we solve a multi-dimensional deconvolution (MDD) problem that can be severely ill-posed, so we offer stable estimates to the MDD problem that rely on the physics of the Marchenko scheme. We validate our method on ocean-bottom field data from the North Sea. In our field data example, we show that the TEEIs can be used for reservoir-targeted imaging using reflection and, for the first time, local transmission responses, shown to be the direct by-product of using internal multiples in the redatuming scheme. Finally, we present local, TEEI-derived reflection and transmission images of the target volume at depth that are structurally consistent with a benchmark image from conventional migration of surface data. To reference this document use: http://resolver.tudelft.nl/uuid:805c549b-44c0-4888-b56f-8b6fc06070f7 DOI https://doi.org/10.3997/2214-4609.201701222 Publisher EAGE Embargo date 2017-11-01 Source 79th EAGE Conference and Exhibition 2017: Paris, France, 12-15 June 2017 Event 79th EAGE Conference and Exhibition 2017, 2017-06-12 → 2017-06-15, Paris, France Part of collection Institutional Repository Document type conference paper Rights © 2017 I. Vasconcelos, M. Ravasi, J.R. van der Neut, A. Kritski, T. Cui Files PDF vasconcelos_eage17.pdf 752.27 KB Close viewer /islandora/object/uuid:805c549b-44c0-4888-b56f-8b6fc06070f7/datastream/OBJ/view