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Träfflista för sökning "WFRF:(Eggenberger Kurt) srt2:(2016)"

Search: WFRF:(Eggenberger Kurt) > (2016)

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1.
  • Robertsson, Johan O.A., et al. (author)
  • Source deghosting
  • 2016
  • In: SEG Technical Program Expanded Abstracts 2016. - : Society of Exploration Geophysicists. ; 35, s. 71-76
  • Conference paper (peer-reviewed)abstract
    • Marine seismic data are distorted by ghosts as waves propagating upwards reflect downwards from the sea surface. Ghosts appear both on the source-side as well as on the receiver-side. However, whereas the receiver-side ghost problem has been studied in detail and many different solutions have been proposed and implemented commercially, the source-side ghost problem has remained largely "unsolved" with few satisfactory commercial solutions available. In this paper we propose a radically new and simple method to remove sea-surface ghosts that relies on using sources at different depths but not at the same lateral positions. The new method promises to be particularly suitable for 3D applications on sparse or incomplete acquisition geometries.
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2.
  • van Manen, Dirk Jan, et al. (author)
  • Aperiodic wavefield signal apparition : De-aliased simultaneous source separation
  • 2016
  • In: SEG Technical Program Expanded Abstracts 2016. - : Society of Exploration Geophysicists. ; 35, s. 102-106
  • Conference paper (peer-reviewed)abstract
    • In wavefield signal apparition, acquisition with periodic variations in source activation parameters shifts all or part of a signal cone out to, e.g., the Nyquist wavenumber, enabling perfect separation of simultaneous-source (sim-source) data below a certain temporal frequency. Cyclic convolution in the spatial frequency domain is used to generalise the signal apparition concept to the case of aperiodic variations in the source activation parameters. The separation is formulated as a leastsquares reconstruction in the frequency-wavenumber (f k) domain. The methodology is used in combination with normal moveout correction to de-alias the sim-source separation and enables shooting on position in sim-source acquisition.
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  • Result 1-2 of 2
Type of publication
conference paper (2)
Type of content
peer-reviewed (2)
Author/Editor
Andersson, Fredrik (2)
Amundsen, Lasse (2)
van Manen, Dirk Jan (2)
Robertsson, Johan O. ... (2)
Eggenberger, Kurt (2)
University
Lund University (2)
Language
English (2)
Research subject (UKÄ/SCB)
Natural sciences (2)
Year
2016 (2)Undo refine

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