Local angle domain in seismic imaging

Z. Koren, I. Ravve, A. Bartana, D. Kosloff

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The Local Angle Domain (LAD) is a system of four angles defining the interaction between incident and reflected waves at a specifie image point (element). Two angles represent the spatial direction of the ray-pair normal: its dip (zenith) and azimuth. The two other angles define the reflection angle system. The third angle is the half-opening angle between the incident and the reflected rays. The definition of these three angles is conventional. We define the fourth LAD angle as the azimuth of the ray-pair plane measured in the ray-pair reflection surface. The LAD angles are defined in a rotated local frame, whose "vertical" axis coincides with the background (reference) normal of the reflection surface element. The forward and the inverse transforms between the directions of the incident and the reflected rays and the LAD angles are presented. We consider Isotropie and TTI anisotropic media, pressure waves and converted waves. The presented notation is used within ray-based and wave-equation angle domain migrations.

Original languageEnglish
Title of host publication69th European Association of Geoscientists and Engineers Conference and Exhibition 2007
Subtitle of host publicationSecuring The Future. Incorporating SPE EUROPEC 2007
PublisherSociety of Petroleum Engineers
Pages3031-3035
Number of pages5
ISBN (Print)9781605601557
StatePublished - 2007
Event69th European Association of Geoscientists and Engineers Conference and Exhibition 2007 - "Securing The Future" - London, United Kingdom
Duration: 11 Jun 200714 Jun 2007

Publication series

Name69th European Association of Geoscientists and Engineers Conference and Exhibition 2007: Securing The Future. Incorporating SPE EUROPEC 2007
Volume5

Conference

Conference69th European Association of Geoscientists and Engineers Conference and Exhibition 2007 - "Securing The Future"
Country/TerritoryUnited Kingdom
CityLondon
Period11/06/0714/06/07

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