Seismic reflection tomography via simulated annealing

Phil Carrion; Gualtiero Böhm

doi:10.1190/1.1437028

Seismic reflection tomography via simulated annealing

The Leading Edge ◽

10.1190/1.1437028 ◽

1994 ◽

Vol 13 (6) ◽

pp. 679-682

Author(s):

Phil Carrion ◽

Gualtiero Böhm

Keyword(s):

Simulated Annealing ◽

Seismic Reflection ◽

Reflection Tomography

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Theoretical and numerical issues in the determination of reflector depths in seismic reflection tomography

Journal of Geophysical Research Atmospheres ◽

10.1029/95jb00920 ◽

1995 ◽

Vol 100 (B7) ◽

pp. 12449-12458 ◽

Cited By ~ 17

Author(s):

Kenneth P. Bube ◽

Robert T. Langan ◽

Jeffrey R. Resnick

Keyword(s):

Seismic Reflection ◽

Reflection Tomography

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3-D seismic reflection tomography on top of the GOCAD depth modeler

Geophysics ◽

10.1190/1.1444075 ◽

1996 ◽

Vol 61 (5) ◽

pp. 1499-1510 ◽

Cited By ~ 23

Author(s):

Jean Luc Guiziou ◽

Jean Laurent Mallet ◽

Raül Madariaga

Keyword(s):

Ray Tracing ◽

Seismic Reflection ◽

Three Dimensions ◽

Macro Model ◽

Triangulated Surfaces ◽

Zero Offset ◽

Tracing Techniques ◽

Inversion Techniques ◽

Reflection Tomography ◽

Seismic Lines

The estimation of velocity macro‐models by seismic reflection tomography is studied in three‐dimensions. Inversion techniques based on the kinematics of seismic data require an appropriate parameterization of the geological macro‐model, in particular as far as the velocity field is concerned. The step toward structurally complex geological models is achieved by exploiting a new approach to 3-D depth modeling: GOCAD. The peculiarities inherent to GOCAD triangulated surfaces and its associated discrete smooth interpolator (DSI) have led to the development of original ray‐tracing techniques. By exploiting intensively the topology of the triangulated surfaces, these new algorithms make it possible to reach a good balance between accuracy and computation performance. To build a 3-D macro‐model estimation tool, ray‐tracing is then associated with a least‐squares inversion of depth parameters and velocity parameters from 3-D zero‐offset traveltimes and stacking velocities, or multi‐offset prestack traveltimes from 2-D seismic lines.

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