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Effect and Reconstruction of Attenuation in Acoustic FWI - Method and Field Data ApplicationGold Open Access

Authors: N. Kamath, R. Brossier, L. Metivier and P. Yang
Event name: 81st EAGE Conference and Exhibition 2019 Workshop Programme
Session: WS01 Attenuation: Challenges in Modelling and Imaging at the Exploration Scale
Publication date: 03 June 2019
DOI: 10.3997/2214-4609.201901915
Organisations: EAGE
Language: English
Info: Abstract, PDF ( 193.13Kb )

Our contribution is divided into two parts: in the first we discuss the mechanism (based on generalised Zener body) used to incorporate attenuation into our forward modelling engine, and the manner we manage the efficient building of the FWI gradient in 3D. The second part deals with the application of mono- and multi-parameter (velocity only in visco-acoustic media, and velocity-attenuation joint inversion, respectively) FWI to a 3D OBC dataset from the Valhall field.

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