| Autor: |
Mike Perz, Ye Zheng, Juefu Wang |
| Rok vydání: |
2009 |
| Předmět: |
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| Zdroj: |
SEG Technical Program Expanded Abstracts 2009. |
| DOI: |
10.1190/1.3255059 |
| Popis: |
Summary We compare two different approaches to input data regularization for azimuth-limited Kirchhoff prestack migration, namely azimuth sectoring and prestack interpolation via band-limited Fourier reconstruction. We evaluate the performance of both approaches as they are employed in a P-wave fracture detection flow using real and synthetic data. The prestack interpolation gave excellent results in both the real and synthetic cases; moreover we found that a careful implementation of azimuth sectoring also gave good results. By contrast, a naive implementation of azimuth sectoring produced an unacceptable level of artifacts in the output fracture attribute volumes and we conclude that careful data regularization prior to prestack migration is a critical step in minimizing artifacts in post-migration fracture analysis. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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