Seismic Linear Noise Attenuation with Use of Radial Transform
One of the goals of seismic data processing is to attenuate the recorded noise in order to enable correct interpretation of the image. Radial transform has been used as a very effective tool in the attenuation of various types of linear noise, both numerical and real (such as ground roll, direct wav...
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Online Access: | https://doi.org/10.1051/e3sconf/20183503003 |
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doaj-59303881dbea40778c5b4d289406385a2021-03-02T10:06:03ZengEDP SciencesE3S Web of Conferences2267-12422018-01-01350300310.1051/e3sconf/20183503003e3sconf_polviet2018_03003Seismic Linear Noise Attenuation with Use of Radial TransformSzymańska-Małysa ŻanetaOne of the goals of seismic data processing is to attenuate the recorded noise in order to enable correct interpretation of the image. Radial transform has been used as a very effective tool in the attenuation of various types of linear noise, both numerical and real (such as ground roll, direct waves, head waves, guided waves etc). The result of transformation from offset – time (X – T) domain into apparent velocity – time (R – T) domain is frequency separation between reflections and linear events. In this article synthetic and real seismic shot gathers were examined. One example was targeted at far offset area of dataset where reflections and noise had similar apparent velocities and frequency bands. Another example was a result of elastic modelling where linear artefacts were produced. Bandpass filtering and scaling operation executed in radial domain attenuated all discussed types of linear noise very effectively. After noise reduction all further processing steps reveal better results, especially velocity analysis, migration and stacking. In all presented cases signal-to-noise ratio was significantly increased and reflections covered previously by noise were revealed. Power spectra of filtered seismic records preserved real dynamics of reflections.https://doi.org/10.1051/e3sconf/20183503003seismicnoise attenuationradial transform |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Szymańska-Małysa Żaneta |
spellingShingle |
Szymańska-Małysa Żaneta Seismic Linear Noise Attenuation with Use of Radial Transform E3S Web of Conferences seismic noise attenuation radial transform |
author_facet |
Szymańska-Małysa Żaneta |
author_sort |
Szymańska-Małysa Żaneta |
title |
Seismic Linear Noise Attenuation with Use of Radial Transform |
title_short |
Seismic Linear Noise Attenuation with Use of Radial Transform |
title_full |
Seismic Linear Noise Attenuation with Use of Radial Transform |
title_fullStr |
Seismic Linear Noise Attenuation with Use of Radial Transform |
title_full_unstemmed |
Seismic Linear Noise Attenuation with Use of Radial Transform |
title_sort |
seismic linear noise attenuation with use of radial transform |
publisher |
EDP Sciences |
series |
E3S Web of Conferences |
issn |
2267-1242 |
publishDate |
2018-01-01 |
description |
One of the goals of seismic data processing is to attenuate the recorded noise in order to enable correct interpretation of the image. Radial transform has been used as a very effective tool in the attenuation of various types of linear noise, both numerical and real (such as ground roll, direct waves, head waves, guided waves etc). The result of transformation from offset – time (X – T) domain into apparent velocity – time (R – T) domain is frequency separation between reflections and linear events. In this article synthetic and real seismic shot gathers were examined. One example was targeted at far offset area of dataset where reflections and noise had similar apparent velocities and frequency bands. Another example was a result of elastic modelling where linear artefacts were produced. Bandpass filtering and scaling operation executed in radial domain attenuated all discussed types of linear noise very effectively. After noise reduction all further processing steps reveal better results, especially velocity analysis, migration and stacking. In all presented cases signal-to-noise ratio was significantly increased and reflections covered previously by noise were revealed. Power spectra of filtered seismic records preserved real dynamics of reflections. |
topic |
seismic noise attenuation radial transform |
url |
https://doi.org/10.1051/e3sconf/20183503003 |
work_keys_str_mv |
AT szymanskamałysazaneta seismiclinearnoiseattenuationwithuseofradialtransform |
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1724237739833950208 |