Computing ray-based 3D illumination maps . Part I : ray-tracing . Seismic ray-tracing

Jean Langanay and Modeste Irakarama and Paul Cupillard. ( 2017 )
in: 2017 Ring Meeting, pages 1--10, ASGA

Abstract

Seismic images are frequently used to build geological models. A proper interpretation of seismic images should take into account uncertainties on the position of reflectors. To assess these seismic uncertainties, illumination maps can be a useful tool. Illumination maps are built on reflectors obtained from a given seismic interpretation. The Illumination map of a reflector represents the seismic energy reflected off the horizon and recorded at receivers; it is therefore a measure on how much confidence should be expected from seismic data to image the reflector accurately. Ray- based illumination maps require to determine the reflection points of every source-receiver pair in a seismic campaign. This paper is the first of a series attempting to describe the implementation of 3D ray-based illumination maps and their applications in assessing structural uncertainties from seismic interpretation. This particular paper focuses on ray-tracing in isotropic media.

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BibTeX Reference

@INPROCEEDINGS{Langanay2017,
    author = { Langanay, Jean and Irakarama, Modeste and Cupillard, Paul },
     title = { Computing ray-based 3D illumination maps . Part I : ray-tracing . Seismic ray-tracing },
 booktitle = { 2017 Ring Meeting },
      year = { 2017 },
     pages = { 1--10 },
 publisher = { ASGA },
  abstract = { Seismic images are frequently used to build geological models. A proper interpretation of seismic images should take into account uncertainties on the position of reflectors. To assess these seismic uncertainties, illumination maps can be a useful tool. Illumination maps are built on reflectors obtained from a given seismic interpretation. The Illumination map of a reflector represents the seismic energy reflected off the horizon and recorded at receivers; it is therefore a measure on how much confidence should be expected from seismic data to image the reflector accurately. Ray- based illumination maps require to determine the reflection points of every source-receiver pair in a seismic campaign. This paper is the first of a series attempting to describe the implementation of 3D ray-based illumination maps and their applications in assessing structural uncertainties from seismic interpretation. This particular paper focuses on ray-tracing in isotropic media. }
}