The MIIS Eprints Archive

On Seismic Imaging: Geodesics, Isochrons, and Fermat's Principle

Webster, Paul (1998) On Seismic Imaging: Geodesics, Isochrons, and Fermat's Principle. [Study Group Report]



Analytic expressions are derived for the isochrons in an inhomogeneous medium characterized by a linear velocity gradient and for an anisotropic medium characterized by an elliptical velocity dependence. The results were generated for a single surface source and five wellbore receivers over a dipping interface. The traveltime and reflection-point results appear to be sensitive to a given assumption of the velocity field. In complex geological areas the location of the planar reflector is tangent to the convex hull of isochrons and might not correspond to their intersection points since the two concepts need to coincide.

Item Type:Study Group Report
Problem Sectors:Energy and utilities
Study Groups:Canadian Industrial Problem Solving Workshops > IPSW 2 (Calgary, Canada, Jun 1-5, 1998)
Company Name:Mechanical Engineering, University of Calgary
ID Code:123
Deposited By: Richard Booth
Deposited On:24 Jan 2008
Last Modified:29 May 2015 19:47

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