-
f Improving Image by Anisotropic Migration - Mississippi Canyon, Gulf of Mexico
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 70th EAGE Conference and Exhibition - Workshops and Fieldtrips, Jun 2008, cp-41-00008
- ISBN: 978-94-6282-104-0
Abstract
Seismic anisotropy refers to seismic waves traveling with different velocity at different<br>propagation angle, usually in consolidated, shale-prone areas such as in Gulf of Mexico<br>and West Africa. A single imaging velocity for any given subsurface location (regardless<br>of propagation angles) has been commonly used in the industry and is called Isotropic<br>Migration. Images obtained with Isotropic Migration are often mis-positioned, resulting<br>in extra cycle time needed to calibrate and correct isotropic images for prospect<br>evaluation and well planning.