| Autor: |
M. Alerini, B. Ursin, M. Riede |
| Rok vydání: |
2007 |
| Předmět: |
|
| Zdroj: |
69th EAGE Conference and Exhibition incorporating SPE EUROPEC 2007. |
| DOI: |
10.3997/2214-4609.201401926 |
| Popis: |
SUMMARY In Kirchhoff based migration, the relevant information is located at the specular reflection point along the migration operator. Limiting the migration operator around this specular point not only increases the speed of the process but also improves greatly the quality of the migration results by suppressing important aliasing artifacts. The determination of the specular point is not trivial without any a priori knowledge of the geological structure. We propose here an approach that makes efficient use of the results from a prior reference velocity model estimation method, stereotomography. Indeed, stereotomography provides pieces of local reflectors. This information is used to limit the migration operator and thus to improve significantly the migration results. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
