Thin-layer detection using spectral inversion and a genetic algorithm
Spectral inversion using a genetic algorithm (GA) as an optimisation approach was used for increasing the seismic resolution of a particular dataset; by contrast with the conjugate gradient method, a GA does not require a good starting model but rather a search space.<br />The method d...
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| Format: | Article |
| Language: | English |
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Universidad Nacional de Colombia
2011-12-01
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| Series: | Earth Sciences Research Journal |
| Online Access: | http://www.revistas.unal.edu.co/index.php/esrj/article/view/27716 |
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| _version_ | 1850142673348853760 |
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| author | Castaño Kelyn Paola Ojeda Germán Montes Luis |
| author_facet | Castaño Kelyn Paola Ojeda Germán Montes Luis |
| author_sort | Castaño Kelyn Paola |
| collection | DOAJ |
| description | Spectral inversion using a genetic algorithm (GA) as an optimisation approach was used for increasing the seismic resolution of a particular dataset; by contrast with the conjugate gradient method, a GA does not require a good starting model but rather a search space.<br />The method discriminated layers thinner than λ/8 when tested on synthetic and log data. When applied to a seismic dataset concerning the Barco formation in the Catatumbo basin, Colombia, spectral inversion led to recovering information from seismic data contributing towards the vertical identification of geological features such as thin distributary channels deposited in a deltaic environment having a tidal influence. The results revealed that a GA outperformed traditional minimisation schemes. |
| format | Article |
| id | doaj-art-af3ee29ab5494a619685b2b5459e8bf9 |
| institution | OA Journals |
| issn | 1794-6190 |
| language | English |
| publishDate | 2011-12-01 |
| publisher | Universidad Nacional de Colombia |
| record_format | Article |
| series | Earth Sciences Research Journal |
| spelling | doaj-art-af3ee29ab5494a619685b2b5459e8bf92025-08-20T02:28:59ZengUniversidad Nacional de ColombiaEarth Sciences Research Journal1794-61902011-12-01152121128Thin-layer detection using spectral inversion and a genetic algorithmCastaño Kelyn PaolaOjeda GermánMontes LuisSpectral inversion using a genetic algorithm (GA) as an optimisation approach was used for increasing the seismic resolution of a particular dataset; by contrast with the conjugate gradient method, a GA does not require a good starting model but rather a search space.<br />The method discriminated layers thinner than λ/8 when tested on synthetic and log data. When applied to a seismic dataset concerning the Barco formation in the Catatumbo basin, Colombia, spectral inversion led to recovering information from seismic data contributing towards the vertical identification of geological features such as thin distributary channels deposited in a deltaic environment having a tidal influence. The results revealed that a GA outperformed traditional minimisation schemes.http://www.revistas.unal.edu.co/index.php/esrj/article/view/27716 |
| spellingShingle | Castaño Kelyn Paola Ojeda Germán Montes Luis Thin-layer detection using spectral inversion and a genetic algorithm Earth Sciences Research Journal |
| title | Thin-layer detection using spectral inversion and a genetic algorithm |
| title_full | Thin-layer detection using spectral inversion and a genetic algorithm |
| title_fullStr | Thin-layer detection using spectral inversion and a genetic algorithm |
| title_full_unstemmed | Thin-layer detection using spectral inversion and a genetic algorithm |
| title_short | Thin-layer detection using spectral inversion and a genetic algorithm |
| title_sort | thin layer detection using spectral inversion and a genetic algorithm |
| url | http://www.revistas.unal.edu.co/index.php/esrj/article/view/27716 |
| work_keys_str_mv | AT castanokelynpaola thinlayerdetectionusingspectralinversionandageneticalgorithm AT ojedagerman thinlayerdetectionusingspectralinversionandageneticalgorithm AT montesluis thinlayerdetectionusingspectralinversionandageneticalgorithm |