1887

Abstract

Time migration velocity analysis is discussed for velocity gradients of sufficient magnitude to require nonhyperbolic diffraction time surface definition. Since multiparameter semblance analysis is costly and can be ambiguous, we developed a method of common-offset time migration that uses linear gradient theory to control the expansion coefficients defining the diffraction surface. Synthetic and field data are used to demonstrate our approach to migration parameter analysis and time imaging.

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/content/papers/10.3997/2214-4609.201411855
1990-07-15
2020-03-29
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201411855
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