| Autor: |
A. Douillard, M. Giboli, R. Baina |
| Rok vydání: |
2014 |
| Předmět: |
|
| Zdroj: |
EAGE/SPE Workshop on Subsalt Imaging. |
| ISSN: |
2214-4609 |
| DOI: |
10.3997/2214-4609.20132101 |
| Popis: |
In this paper we briefly review different methods to produce CIGSs with WE migration techniques and we discuss potential interest to produce 3D surface offset gathers. Since we are interested in using modern migration techniques to handle the complex overburden for wave propagation and in using ray-based tomography to update the subsalt velocity, we demonstrate the application of RTM 3D surface offset gathers to subsalt TTI image enhancement and velocity updating. We use a bi-azimuth data set from offshore Angola to illustrate how the proposed method helps to improve subsalt model building and image quality. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
