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A review of OBN processing: challenges and solutions
| Content Provider | Oxford Academic |
|---|---|
| Author | Zhang, Dongliang Tsingas, Constantinos Ghamdi, Ahmed A Huang, Mingzhong Jeong, Woodon Sliz, Krzysztof K Aldeghaither, Saud M Zahrani, Saeed A |
| Copyright Year | 2021 |
| Abstract | In the last decade, a significant shift in the marine seismic acquisition business has been made where ocean bottom nodes gained a substantial market share from streamer cable configurations. Ocean bottom node acquisition (OBN) can acquire wide azimuth seismic data over geographical areas with challenging deep and shallow bathymetries and complex subsurface regimes. When the water bottom is rugose and has significant elevation differences, OBN data processing faces a number of challenges, such as denoising of the vertical geophone, accurate wavefield separation, redatuming the sparse receiver nodes from ocean bottom to sea level and multiple attenuation. In this work, we review a number of challenges using real OBN data illustrations. We demonstrate corresponding solutions using processing workflows comprising denoising the vertical geophones by using all four recorded nodal components, cross-ghosting the data or using direct wave to design calibration filters for up- and down-going wavefield separation, performing one-dimensional reversible redatuming for stacking QC and multiple prediction, and designing cascaded model and data-driven multiple elimination applications. The optimum combination of the mentioned technologies produced cleaner and high-resolution migration images mitigating the risk of false interpretations. |
| Related Links | https://academic.oup.com/jge/article-pdf/18/4/492/39619542/gxab024.pdf |
| Ending Page | 502 |
| Starting Page | 492 |
| File Format | |
| ISSN | 17422132 |
| e-ISSN | 17422140 |
| DOI | 10.1093/jge/gxab024 |
| Journal | Journal of Geophysics and Engineering |
| Issue Number | 4 |
| Volume Number | 18 |
| Language | English |
| Publisher | Oxford Academic |
| Publisher Date | 2021-09-03 |
| Access Restriction | Open |
| Subject Keyword | Earth Sciences and Geography Geophysics Science and Mathematics Obn Data Processing Redatuming Up/down Wavefield Separation Demultiple |
| Content Type | Text |
| Resource Type | Article |
| Subject | Industrial and Manufacturing Engineering Geology Geophysics Management, Monitoring, Policy and Law |
