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oa Prestack Depth Migration by 3D Tomographic Inversion of Reflected and Refracted Arrivals
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, EAGE Winter Symposium - Reservoir Geophysics, the Road Ahead, Oct 1996, cp-98-00032
- ISBN: 978-94-6282-124-8
Abstract
Reflection tomography produces reliable macro-models in depth for the velocity field of seismic waves and other geophysical properties, when complex 3-D structures are present. The well-known inversion ambiguities due to the null space can be avoided by fitting the grid to the distribution of the available ray paths.