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    Frequency scaling for angle gathers

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    Type
    Conference Paper
    Authors
    Zuberi, M. A H
    Alkhalifah, Tariq Ali cc
    KAUST Department
    Earth Science and Engineering Program
    Environmental Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Seismic Wave Analysis Group
    Date
    2014
    Permanent link to this record
    http://hdl.handle.net/10754/564855
    
    Metadata
    Show full item record
    Abstract
    Angle gathers provide an extra dimension to analyze the velocity after migration. Space-shift and time shift-imaging conditions are two methods used to obtain angle gathers, but both are reasonably expensive. By scaling the time-lag axis of the time-shifted images, the computational cost of the time shift imaging condition can be considerably reduced. In imaging and more so Full waveform inversion, frequencydomain Helmholtz solvers are used more often to solve for the wavefields than conventional time domain extrapolators. In such cases, we do not need to extend the image, instead we scale the frequency axis of the frequency domain image to obtain the angle gathers more efficiently. Application on synthetic data demonstrate such features.
    Citation
    Zuberi, M. A. H., & Alkhalifah, T. (2014). Frequency Scaling for Angle Gathers. Proceedings 76th EAGE Conference and Exhibition 2014. doi:10.3997/2214-4609.20141495
    Publisher
    EAGE Publications
    Journal
    Proceedings 76th EAGE Conference and Exhibition 2014
    Conference/Event name
    76th European Association of Geoscientists and Engineers Conference and Exhibition 2014: Experience the Energy - Incorporating SPE EUROPEC 2014
    ISBN
    9781632666949
    DOI
    10.3997/2214-4609.20141495
    ae974a485f413a2113503eed53cd6c53
    10.3997/2214-4609.20141495
    Scopus Count
    Collections
    Conference Papers; Environmental Science and Engineering Program; Physical Science and Engineering (PSE) Division; Earth Science and Engineering Program

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