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Source deghosting by depth apparition

Robertsson, Johan O.A.; van Manen, Dirk Jan; Andersson, Fredrik LU ; Amundsen, Lasse and Eggenberger, Kurt (2017) In Geophysics 82(6). p.89-107
Abstract

Marine seismic data are distorted by ghosts as waves propagating upward reflect downward from the sea surface. Ghosts appear on the source side and 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 solutions available. We have developed a new and simple method to remove sea-surface ghosts that is related to the recently introduced concept of signal apparition. As opposed to the temporal/ spatial source signature modulation functions used in the original signal apparition theory, our source deghosting method relies on using sources at... (More)

Marine seismic data are distorted by ghosts as waves propagating upward reflect downward from the sea surface. Ghosts appear on the source side and 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 solutions available. We have developed a new and simple method to remove sea-surface ghosts that is related to the recently introduced concept of signal apparition. As opposed to the temporal/ spatial source signature modulation functions used in the original signal apparition theory, our source deghosting method 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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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Geophysics
volume
82
issue
6
pages
89 - 107
publisher
Soc Exploration Geophysicists
external identifiers
  • scopus:85029795116
  • wos:000417973300037
ISSN
0016-8033
DOI
10.1190/GEO2016-0686.1
language
English
LU publication?
yes
id
2a480750-647a-4fab-a4ff-9ce3b1c44f25
date added to LUP
2017-10-05 12:42:15
date last changed
2018-01-16 13:20:59
@article{2a480750-647a-4fab-a4ff-9ce3b1c44f25,
  abstract     = {<p>Marine seismic data are distorted by ghosts as waves propagating upward reflect downward from the sea surface. Ghosts appear on the source side and 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 solutions available. We have developed a new and simple method to remove sea-surface ghosts that is related to the recently introduced concept of signal apparition. As opposed to the temporal/ spatial source signature modulation functions used in the original signal apparition theory, our source deghosting method 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.</p>},
  author       = {Robertsson, Johan O.A. and van Manen, Dirk Jan and Andersson, Fredrik and Amundsen, Lasse and Eggenberger, Kurt},
  issn         = {0016-8033},
  language     = {eng},
  month        = {11},
  number       = {6},
  pages        = {89--107},
  publisher    = {Soc Exploration Geophysicists},
  series       = {Geophysics},
  title        = {Source deghosting by depth apparition},
  url          = {http://dx.doi.org/10.1190/GEO2016-0686.1},
  volume       = {82},
  year         = {2017},
}