Extended pseudo-screen migration with multiple reference velocities

Lian Jie Huang; Michael C. Fehler

doi:10.1190/1.1886099

Extended pseudo-screen migration with multiple reference velocities

Lian Jie Huang^*
, Michael C. Fehler

^*Corresponding author for this work

Los Alamos National Laboratory

Research output: Contribution to conference › Paper › peer-review

9 Scopus citations

Abstract

The pseudo-screen propagator is a kind of one-way wave propagator based on the local Born approximation. The propagator becomes unreliable when the velocity perturbation is large. We develop an extended pseudo-screen propagator by introducing different reference velocities in different regions of a medium to ensure the condition of small perturbation. Exploding reflector data for a 2D slice of the SEG/EAEG 3D salt model is generated by a finite-difference scheme to test the feasibility of the method. The migration result demonstrates that the method can handle severe lateral velocity variations and provides high quality images of complex structures.

Original language	English
Pages	1742-1745
Number of pages	4
DOIs	https://doi.org/10.1190/1.1886099
State	Published - 1997
Externally published	Yes
Event	1997 Society of Exploration Geophysicists Annual Meeting, SEG 1997 - Dallas, United States Duration: 2 Nov 1997 → 7 Nov 1997

Conference

Conference	1997 Society of Exploration Geophysicists Annual Meeting, SEG 1997
Country/Territory	United States
City	Dallas
Period	2/11/97 → 7/11/97

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10.1190/1.1886099

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abstract = "The pseudo-screen propagator is a kind of one-way wave propagator based on the local Born approximation. The propagator becomes unreliable when the velocity perturbation is large. We develop an extended pseudo-screen propagator by introducing different reference velocities in different regions of a medium to ensure the condition of small perturbation. Exploding reflector data for a 2D slice of the SEG/EAEG 3D salt model is generated by a finite-difference scheme to test the feasibility of the method. The migration result demonstrates that the method can handle severe lateral velocity variations and provides high quality images of complex structures.",

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AU - Fehler, Michael C.

PY - 1997

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AB - The pseudo-screen propagator is a kind of one-way wave propagator based on the local Born approximation. The propagator becomes unreliable when the velocity perturbation is large. We develop an extended pseudo-screen propagator by introducing different reference velocities in different regions of a medium to ensure the condition of small perturbation. Exploding reflector data for a 2D slice of the SEG/EAEG 3D salt model is generated by a finite-difference scheme to test the feasibility of the method. The migration result demonstrates that the method can handle severe lateral velocity variations and provides high quality images of complex structures.

UR - https://www.scopus.com/pages/publications/0038876666

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DO - 10.1190/1.1886099

M3 - 论文

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T2 - 1997 Society of Exploration Geophysicists Annual Meeting, SEG 1997

Y2 - 2 November 1997 through 7 November 1997

ER -

Extended pseudo-screen migration with multiple reference velocities

Abstract

Conference

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