Abstract
The centroid frequency shift method is widely applied to estimate seismic wave attenuation from zero-offset Vertical Seismic Profiling data. In order to extend this method for surface seismic data, a new workflow was developed in this study for estimating seismic wave attenuation from 3D OBC data acquired in an oilfield located in Abu Dhabi, United Arab Emirates. Highly heterogeneous and saturated zones, such as the reservoir and aquifer zones, display distinct attenuation anomalies, such as the reservoir and aquifer zones. Attenuation anomalies in the reservoir zones are most likely a result of scattering and fluid-related attenuation mechanisms due to the high density of density and high fluid content. The attenuation profiles show minor lateral variation, which is in agreement with velocity profiles recently obtained from full waveform inversion.
| Original language | British English |
|---|---|
| Pages (from-to) | 2196-2200 |
| Number of pages | 5 |
| Journal | SEG Technical Program Expanded Abstracts |
| Volume | 2020-October |
| DOIs | |
| State | Published - 2020 |
| Event | Society of Exploration Geophysicists International Exhibition and 90th Annual Meeting, SEG 2020 - Virtual, Online Duration: 11 Oct 2020 → 16 Oct 2020 |
Keywords
- 3D
- Attenuation
- Reservoir characterization
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