Applicating time-lapse time-shift inversion using pre-stack tomography

P. K. T. Nguyen; Colin MacBeth; M. D. Mangriotis

doi:10.3997/2214-4609.201800282

Applicating time-lapse time-shift inversion using pre-stack tomography

P. K. T. Nguyen, Colin MacBeth, M. D. Mangriotis

School of Energy, Geoscience, Infrastructure and Society

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

Abstract

Several studies have proved the angle dependence of time-shifts and their contributions in imaging the time-lapse velocity changes, using extended 3D tomography or 4D tomography. Here we present a simple yet robust tomographic method for recovering time-lapse velocity changes, using pre-stack time-shifts under two assumptions of straight ray path assumption and negligible thickness changes. The regridding approach used in this study helps to invert for different angle-stack data without alteration of the inversion algorithm. We also include the application to the North Sea field, where has geomechanically active. The proposed method appears to work well on this dataset.

Original language	English
DOIs	https://doi.org/10.3997/2214-4609.201800282
Publication status	Published - 9 Apr 2018
Event	8th Saint Petersburg International Conference and Exhibition: Innovations in Geosciences - Time for Breakthrough - Saint Petersburg, Russian Federation Duration: 9 Apr 2018 → 12 Apr 2018

Conference

Conference	8th Saint Petersburg International Conference and Exhibition: Innovations in Geosciences - Time for Breakthrough
Country/Territory	Russian Federation
City	Saint Petersburg
Period	9/04/18 → 12/04/18

ASJC Scopus subject areas

Geophysics
Geology
Geotechnical Engineering and Engineering Geology

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10.3997/2214-4609.201800282

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abstract = "Several studies have proved the angle dependence of time-shifts and their contributions in imaging the time-lapse velocity changes, using extended 3D tomography or 4D tomography. Here we present a simple yet robust tomographic method for recovering time-lapse velocity changes, using pre-stack time-shifts under two assumptions of straight ray path assumption and negligible thickness changes. The regridding approach used in this study helps to invert for different angle-stack data without alteration of the inversion algorithm. We also include the application to the North Sea field, where has geomechanically active. The proposed method appears to work well on this dataset.",

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Applicating time-lapse time-shift inversion using pre-stack tomography. / Nguyen, P. K. T.; MacBeth, Colin; Mangriotis, M. D.

2018. Paper presented at 8th Saint Petersburg International Conference and Exhibition: Innovations in Geosciences - Time for Breakthrough, Saint Petersburg, Russian Federation.

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

TY - CONF

T1 - Applicating time-lapse time-shift inversion using pre-stack tomography

AU - Nguyen, P. K. T.

AU - MacBeth, Colin

AU - Mangriotis, M. D.

PY - 2018/4/9

Y1 - 2018/4/9

N2 - Several studies have proved the angle dependence of time-shifts and their contributions in imaging the time-lapse velocity changes, using extended 3D tomography or 4D tomography. Here we present a simple yet robust tomographic method for recovering time-lapse velocity changes, using pre-stack time-shifts under two assumptions of straight ray path assumption and negligible thickness changes. The regridding approach used in this study helps to invert for different angle-stack data without alteration of the inversion algorithm. We also include the application to the North Sea field, where has geomechanically active. The proposed method appears to work well on this dataset.

AB - Several studies have proved the angle dependence of time-shifts and their contributions in imaging the time-lapse velocity changes, using extended 3D tomography or 4D tomography. Here we present a simple yet robust tomographic method for recovering time-lapse velocity changes, using pre-stack time-shifts under two assumptions of straight ray path assumption and negligible thickness changes. The regridding approach used in this study helps to invert for different angle-stack data without alteration of the inversion algorithm. We also include the application to the North Sea field, where has geomechanically active. The proposed method appears to work well on this dataset.

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M3 - Paper

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T2 - 8th Saint Petersburg International Conference and Exhibition: Innovations in Geosciences - Time for Breakthrough

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ER -

Applicating time-lapse time-shift inversion using pre-stack tomography

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