Fast RTM for contrast velocity models based on modeling in a running strip

Standard

Fast RTM for contrast velocity models based on modeling in a running strip. / Smelov, Artem S.; Serdyukov, Aleksander S.; Duchkov, Anton A.

In: SEG Technical Program Expanded Abstracts, 17.08.2017, p. 5531-5535.

Research output: Contribution to journal › Conference article › peer-review

Harvard

Smelov, AS, Serdyukov, AS & Duchkov, AA 2017, 'Fast RTM for contrast velocity models based on modeling in a running strip', SEG Technical Program Expanded Abstracts, pp. 5531-5535. https://doi.org/10.1190/segam2017-17775607.1

APA

Smelov, A. S., Serdyukov, A. S., & Duchkov, A. A. (2017). Fast RTM for contrast velocity models based on modeling in a running strip. SEG Technical Program Expanded Abstracts, 5531-5535. https://doi.org/10.1190/segam2017-17775607.1

Vancouver

Smelov AS, Serdyukov AS , Duchkov AA. Fast RTM for contrast velocity models based on modeling in a running strip. SEG Technical Program Expanded Abstracts. 2017 Aug 17;5531-5535. doi: 10.1190/segam2017-17775607.1

Author

Smelov, Artem S. ; Serdyukov, Aleksander S. ; Duchkov, Anton A. / Fast RTM for contrast velocity models based on modeling in a running strip. In: SEG Technical Program Expanded Abstracts. 2017 ; pp. 5531-5535.

BibTeX

@article{1a182693bee84d71ae51a24ff5a1cf78,

title = "Fast RTM for contrast velocity models based on modeling in a running strip",

abstract = "Reverse-Time Migration (RTM) has proved to be efficient in producing good seismic images in case of complex velocity models. However, it is computationally expensive and produces artifacts when used for contrast migration velocity models. Here we present a modified algorithm for RTM addressing these issues. It is based on fast hybrid approach to finite-difference (FD) modeling of the first-arrival seismic waveforms. It is a two step procedure: first, we solve the eikonal equation for the first arrival traveltimes; second, we solve the wave equation such that at every time step the FD computations are performed only in a moving narrow strip following the first-arrival wave front. This approach to modeling results in considerable computational speed-up and memory savings when storing wavefield (only in the strip of first-arrival waveforms). Moreover, computation of the source wavefield only in a moving strip does not allow for generation of multiples in contrast models thus eliminating artifacts.",

author = "Smelov, {Artem S.} and Serdyukov, {Aleksander S.} and Duchkov, {Anton A.}",

note = "Funding Information: This research was supported by Russian Foundation for Basic Research (Grant # 14-05-00862-a). Publisher Copyright: {\textcopyright} 2017 SEG.; Society of Exploration Geophysicists International Exposition and 87th Annual Meeting, SEG 2017 ; Conference date: 24-09-2017 Through 29-09-2017",

year = "2017",

month = aug,

day = "17",

doi = "10.1190/segam2017-17775607.1",

language = "English",

pages = "5531--5535",

journal = "SEG Technical Program Expanded Abstracts",

issn = "1052-3812",

publisher = "Society of Exploration Geophysicists",

}

RIS

TY - JOUR

T1 - Fast RTM for contrast velocity models based on modeling in a running strip

AU - Smelov, Artem S.

AU - Serdyukov, Aleksander S.

AU - Duchkov, Anton A.

PY - 2017/8/17

Y1 - 2017/8/17

N2 - Reverse-Time Migration (RTM) has proved to be efficient in producing good seismic images in case of complex velocity models. However, it is computationally expensive and produces artifacts when used for contrast migration velocity models. Here we present a modified algorithm for RTM addressing these issues. It is based on fast hybrid approach to finite-difference (FD) modeling of the first-arrival seismic waveforms. It is a two step procedure: first, we solve the eikonal equation for the first arrival traveltimes; second, we solve the wave equation such that at every time step the FD computations are performed only in a moving narrow strip following the first-arrival wave front. This approach to modeling results in considerable computational speed-up and memory savings when storing wavefield (only in the strip of first-arrival waveforms). Moreover, computation of the source wavefield only in a moving strip does not allow for generation of multiples in contrast models thus eliminating artifacts.

AB - Reverse-Time Migration (RTM) has proved to be efficient in producing good seismic images in case of complex velocity models. However, it is computationally expensive and produces artifacts when used for contrast migration velocity models. Here we present a modified algorithm for RTM addressing these issues. It is based on fast hybrid approach to finite-difference (FD) modeling of the first-arrival seismic waveforms. It is a two step procedure: first, we solve the eikonal equation for the first arrival traveltimes; second, we solve the wave equation such that at every time step the FD computations are performed only in a moving narrow strip following the first-arrival wave front. This approach to modeling results in considerable computational speed-up and memory savings when storing wavefield (only in the strip of first-arrival waveforms). Moreover, computation of the source wavefield only in a moving strip does not allow for generation of multiples in contrast models thus eliminating artifacts.

UR - http://www.scopus.com/inward/record.url?scp=85121870452&partnerID=8YFLogxK

U2 - 10.1190/segam2017-17775607.1

DO - 10.1190/segam2017-17775607.1

M3 - Conference article

AN - SCOPUS:85121870452

SP - 5531

EP - 5535

JO - SEG Technical Program Expanded Abstracts

JF - SEG Technical Program Expanded Abstracts

SN - 1052-3812

T2 - Society of Exploration Geophysicists International Exposition and 87th Annual Meeting, SEG 2017

Y2 - 24 September 2017 through 29 September 2017

ER -

ID: 35174376