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The Leading Edge; November 2009; v. 28; no. 11; p. 1344-1351; DOI: 10.1190/1.3259613
© 2009 Society of Exploration Geophysicists
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Right arrow Articles by Ursenbach, C.
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SPECIAL SECTION: The rocky Mountain region

TTI wave-equation migration for Canadian Foothills depth imaging

Charles Ursenbach and Richard Bale

CGGVeritas

Corresponding author: Charles.Ursenbach{at}cggveritas.com

Abstract

In order to achieve good imaging in complexly thrusted areas such as the Canadian Foothills, several key issues must be addressed: the presence of very rough surface topography, structural complexity, and anisotropy with a tilted symmetry axis. To image structural complexity with greater accuracy than depth migration can typically accomplish at present, one must move beyond ray-based Kirchhoff methods to techniques employing a full wavefield description, such as wave-equation migration, and these techniques must be extended to handle propagation through tilted media and migration from topography.






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