Interferometric redatuming with simultaneous and missing sources using sparsity promotion in the curvelet domain

TitleInterferometric redatuming with simultaneous and missing sources using sparsity promotion in the curvelet domain
Publication TypeConference
Year of Publication2012
AuthorsJoost van der Neut, Felix J. Herrmann, Kees Wapenaar
Conference NameSEG Technical Program Expanded Abstracts
Volume31
Page1-7
Month11
OrganizationSEG
KeywordsImaging, Interferometry, Optimization, Processing, SEG
Abstract

Interferometric redatuming is a velocity-independent method to turn downhole receivers into virtual sources. Accurate redatuming involves solving an inverse problem, which can be highly ill-posed, especially in the presence of noise, incomplete data and limited aperture. We address these issues by combining interferometric redatuming with transform-domain sparsity promotion, leading to a formulation that deals with data imperfections. We show that sparsity promotion improves the retrieval of virtual shot records under a salt flank. To reduce acquisition costs, it can be beneficial to reduce the number of sources or shoot them simultaneously. It is shown that sparse inversion can still provide a stable solution in such cases.

URLhttps://www.slim.eos.ubc.ca/Publications/Public/Conferences/SEG/2012/vanderneut2012SEGirs/vanderneut2012SEGirs.pdf
DOI10.1190/segam2012-0566.1
Citation Keyvanderneut2012SEGirs