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On the Resolution of S Waves for Orthorhombic Parameters From the Wavenumber Illumination ProspectiveNormal access

Authors: V. Kazei and T. Alkhalifah
Event name: 81st EAGE Conference and Exhibition 2019
Session: Seismic Interpretation - Anisotropy and Fractured Reservoirs I
Publication date: 03 June 2019
DOI: 10.3997/2214-4609.201900812
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 843.6Kb )
Price: € 20

Summary:
Orthorhombic anisotropy is typical of naturally fractured reservoirs. This type of anisotropy is caused by a single system of vertical fractures embedded in a horizontally layered medium. Arbitrary orthorhom- bic elastic anisotropy can be characterized by ten independent parameters, one of which is density. In the best of circumstances, only six of these parameters can be reliably inverted from the P-wave scat- tered energy. Thus, we access the resolution of S-wave inversion from the wavenumber illumination perspective and show that S waves can resolve the remaining orthorhombic parameters.


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