1887

Abstract

Summary

We demonstrate the way to calculate a NMO velocity ellipse for direct and reflected (including converted) wave modes in a homogeneous horizontal layer with tilted orthorhombic symmetry (the tilt is defined by three Euler angles). For elliptic orthorhombic model, we present explicit expressions for the shift of the minimum of a traveltime surface. We use numerical examples to demonstrate how the position of a NMO velocity ellipse behaves depending on the orientation of the symmetry planes in an orthorhombic medium.

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/content/papers/10.3997/2214-4609.201601326
2016-05-30
2024-04-26
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