3-D preserved amplitude prestack depth migration on a workstation-Reference-Cited by-同舟云学术

3-D preserved amplitude prestack depth migration on a workstation

Published:1999-01 Issue:1 Volume:64 Page:222-229
ISSN:0016-8033
Container-title:GEOPHYSICS
language:en
Short-container-title:GEOPHYSICS

Author:

Thierry Philippe¹,Lambaré Gilles¹,Podvin Pascal¹,Noble Mark S.¹

Affiliation:

1. Ecoles des Mines de Paris, ARMINES‐GEOPHY, 35 rue Saint Honore, 77305 Fontainebleau Cedex, France. Emails:

Abstract

We present an algorithm based on the ray+Born approximation for 3-D preserved amplitude prestack depth migration (PAPsDM) of seismic reflection data. This ray+Born inversion scheme allows the quantitative recovery of model perturbations. The Green’s functions are estimated by dynamic ray tracing in 3-D heterogeneous smooth velocity fields with a wavefront construction (WFC) method. The PAPsDM algorithm was implemented on a single‐processor Sun Sparc 20 workstation. Special attention was paid to CPU efficiency and memory requirements. We present an application on a 3-D real marine data set (13 Gbytes). About one week of CPU time is needed to obtain a migrated image of 7 × 1 × 1 km.

Publisher

Society of Exploration Geophysicists

Subject

Geochemistry and Petrology,Geophysics

Link

https://library.seg.org/doi/pdf/10.1190/1.1444518

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