| Título: | The Research of Reverse-Time Migration for Cross-Hole Seismic |
| Autores: |
Zhe, LI; College of information and control engineering, China University of Petroleum (East China), Qingdao, China Xia, CAO; School of Geosciences, China University of Petroleum (East China), Qingdao, China Songhui, LIN; Shengli Geophysical Research Institute of SINOPEC, Dongying, China Guohua, WEI; Shengli Geophysical Research Institute of SINOPEC, Dongying, China |
| Fecha: | 2013-09-30 |
| Publicador: | Advances in Petroleum Exploration and Development |
| Fuente: |
 |
| Tipo: |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article |
| Tema: |
Cross-hole seismic; Reverse-time migration; Model test |
| Descripción: | Cross-hole seismic is the leading technology of development seismology, which is still developing and improving. With the development of down-hole acquisition equipment, cross-hole seismic acquisition technology is getting mature, providing better data for imaging. According to the features of cross-hole survey and cross-hole data, we put forward a reverse-time migration method which is suitable for the wave equation for cross-hole seismic data. We propose finite difference scheme of higher order, and then derive its stability condition in cross-hole seismic. The frequency dispersion problem in cross-hole seismic wave field extrapolation is also discussed. Cross correlation imaging condition is used to realize migration, and Laplace filter is applied to remove low-frequency noise from migration section. Thus finite-difference reverse-time migration method for cross-hole seismic is established. Finally, we build geological models with anomalous ellipsoids, and apply cross-hole seismic wave field simulation and migration to them, thus our method proves its effectiveness. When dealing with real cross-hole seismic data with this method, high-resolution migration sections can be achieved.Key words: Cross-hole seismic; Reverse-time migration; Model test |
| Idioma: | Inglés |
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