Finitedifference migration to zero offset
Abstract
Migration to zero offset (MZO), also called dip moveout (DMO) or prestack partial migration, transforms prestack offset seismic data into approximate zerooffset data so as to remove reflection point smear and obtain quality stacked results over a range of reflector dips. MZO has become an important step in standard seismic data processing, and a variety of frequencywavenumber (fk) and integral MZO algorithms have been used in practice to date. Here, I present a finitedifference MZO algorithm applied to normalmoveout (NMO)corrected, commonoffset sections. This algorithm employs a traditional poststack 15degree finitedifference migration algorithm and a special velocity function rather than the true migration velocity. This paper shows results of implementation of this MZO algorithm when velocity varies with depth, and discusses the possibility of applying this algorithm to cases where velocity varies with both depth and horizontal distance.
 Authors:
 Publication Date:
 Research Org.:
 Colorado School of Mines, Golden, CO (United States). Center for Wave Phenomena
 Sponsoring Org.:
 USDOE, Washington, DC (United States)
 OSTI Identifier:
 10159178
 Report Number(s):
 DOE/ER/1407913; CWP122
ON: DE92016281
 DOE Contract Number:
 FG0289ER14079
 Resource Type:
 Technical Report
 Resource Relation:
 Other Information: PBD: [1992]
 Country of Publication:
 United States
 Language:
 English
 Subject:
 42 ENGINEERING; 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; SEISMIC DETECTION; FINITE DIFFERENCE METHOD; ALGORITHMS; MIGRATION; VELOCITY; SEISMIC WAVES; CORRECTIONS; 422000; 990200; MINING AND UNDERGROUND ENGINEERING; MATHEMATICS AND COMPUTERS
Citation Formats
Li, Jianchao. Finitedifference migration to zero offset. United States: N. p., 1992.
Web. doi:10.2172/10159178.
Li, Jianchao. Finitedifference migration to zero offset. United States. doi:10.2172/10159178.
Li, Jianchao. 1992.
"Finitedifference migration to zero offset". United States.
doi:10.2172/10159178. https://www.osti.gov/servlets/purl/10159178.
@article{osti_10159178,
title = {Finitedifference migration to zero offset},
author = {Li, Jianchao},
abstractNote = {Migration to zero offset (MZO), also called dip moveout (DMO) or prestack partial migration, transforms prestack offset seismic data into approximate zerooffset data so as to remove reflection point smear and obtain quality stacked results over a range of reflector dips. MZO has become an important step in standard seismic data processing, and a variety of frequencywavenumber (fk) and integral MZO algorithms have been used in practice to date. Here, I present a finitedifference MZO algorithm applied to normalmoveout (NMO)corrected, commonoffset sections. This algorithm employs a traditional poststack 15degree finitedifference migration algorithm and a special velocity function rather than the true migration velocity. This paper shows results of implementation of this MZO algorithm when velocity varies with depth, and discusses the possibility of applying this algorithm to cases where velocity varies with both depth and horizontal distance.},
doi = {10.2172/10159178},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1992,
month = 7
}

Migration to zero offset (MZO), also called dip moveout (DMO) or prestack partial migration, transforms prestack offset seismic data into approximate zerooffset data so as to remove reflection point smear and obtain quality stacked results over a range of reflector dips. MZO has become an important step in standard seismic data processing, and a variety of frequencywavenumber (fk) and integral MZO algorithms have been used in practice to date. Here, I present a finitedifference MZO algorithm applied to normalmoveout (NMO)corrected, commonoffset sections. This algorithm employs a traditional poststack 15degree finitedifference migration algorithm and a special velocity function rather than themore »

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