Application of frequency-domain full-waveform inversion for time-lapse 3D VSP data interpretation

Liang, Lin; Li, M.; Rufino, R.; Abubakar, Aria; Nutt, L.; Menkiti, Henry; Dümmong, Stefan; Tøndel, Richard

doi:10.1190/segam2013-0989.1

Cited by 6 publications

(4 citation statements)

References 10 publications

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“…FWI aims to estimate spatial distribution of physical properties using the seismic data ). FWI has been successfully applied to field VSP datasets acquired with geophones (Owusu et al, 2016;Charara et al, 1996), and has demonstrated its potential for estimating the time-lapse changes in the elastic properties from VSP data (Egorov et al, 2017;Liang et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Elastic full-waveform inversion of vertical seismic profile data acquired with distributed acoustic sensors

et al. 2018

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Distributed acoustic sensing (DAS) is a rapidly developing technology particularly useful for the acquisition of vertical seismic profile (VSP) surveys. DAS data are increasingly used for seismic imaging, but not for estimating rock properties. We propose a workflow for estimating elastic properties of the subsurface using full waveform inversion (FWI) of DAS VSP data. Whereas conventional borehole geophones usually measure three components of particle velocity, DAS measures a single quantity, which is an approximation of the strain or strain rate along the fiber. Standard FWI algorithms are developed for particle velocity data, and hence their application to DAS data requires conversion of these data to particle velocity along the fiber. This conversion can be accomplished by a specially designed filter. Field measurements show that the conversion result is close to vertical particle velocity as measured by geophones. Elastic time-domain FWI of a synthetic multi-offset VSP dataset for a vertical well shows that the inversion of the vertical component alone is sufficient to recover elastic properties of the subsurface. Application of the proposed workflow to a multioffset DAS dataset acquired at the CO2CRC Otway Project site in Victoria, Australia reveals salient subhorizontal layering consistent with known geology of the site. The inverted VP model at the well location matches the upscaled VP log with a correlation coefficient of 0.85.

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Section: Introductionmentioning

confidence: 99%

Elastic full-waveform inversion of vertical seismic profile data acquired with distributed acoustic sensors

et al. 2018

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“…In one example, Liang et al . [] were able to quantify the changes in the medium introduced by the steam injection in a heavy oil field using acoustic FWI. Yang et al .…”

Section: Introductionmentioning

confidence: 99%

“…However, there are very few cases of FWI of VSP data being used for seismic monitoring. In one example, Liang et al [2013] were able to quantify the changes in the medium introduced by the steam injection in a heavy oil field using acoustic FWI. Yang et al [2014], however, were unable to detect the timelapse difference in velocities introduced by the CO 2 injection using FWI, which was partly attributed to the survey geometry (the receivers were placed above the target, which was therefore illuminated only by reflected waves).…”

Section: Introductionmentioning

confidence: 99%

Time‐lapse full waveform inversion of vertical seismic profile data: Workflow and application to the CO2CRC Otway project

Egorov

Pevzner

Bóna

et al. 2017

Geophysical Research Letters

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Vertical seismic profile (VSP) is one of the technologies for monitoring hydrocarbon production and CO2 geosequestration. However, quantitative interpretation of time‐lapse VSP is challenging due to its irregular distribution of source‐receiver offsets. One way to overcome this challenge is to use full waveform inversion (FWI), which does not require regular offsets. We present a workflow of elastic FWI applied to offset vertical seismic profile data for the purpose of identification and estimation of time‐lapse changes introduced by injection of 15,000 t of CO2‐rich gas mixture at 1.5 km depth. Application of this workflow to both synthetic and field data shows that elastic FWI is able to detect and quantify the time‐lapse anomaly in P wave velocity with the magnitude of 100–150 m/s.

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“…Recently, Liang et al . () have applied acoustic FWI to time‐lapse VSP data and pushed for high‐frequency inversion.…”

Section: Introductionmentioning

confidence: 99%

Anisotropic elastic full-waveform inversion of walkaway vertical seismic profiling data from the Arabian Gulf

Owusu

Podgornova

Charara

et al. 2015

Geophysical Prospecting

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A B S T R A C TBorehole seismic addresses the need for high-resolution images and elastic parameters of the subsurface. Full-waveform inversion of vertical seismic profile data is a promising technology with the potential to recover quantitative information about elastic properties of the medium. Full-waveform inversion has the capability to process the entire wavefield and to address the wave propagation effects contained in the borehole data-multi-component measurements; anisotropic effects; compressional and shear waves; and transmitted, converted, and reflected waves and multiples. Full-waveform inversion, therefore, has the potential to provide a more accurate result compared with conventional processing methods.We present a feasibility study with results of the application of high-frequency (up to 60 Hz) anisotropic elastic full-waveform inversion to a walkaway vertical seismic profile data from the Arabian Gulf. Full-waveform inversion has reproduced the majority of the wave events and recovered a geologically plausible layered model with physically meaningful values of the medium.

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Application of frequency-domain full-waveform inversion for time-lapse 3D VSP data interpretation

Cited by 6 publications

References 10 publications

Elastic full-waveform inversion of vertical seismic profile data acquired with distributed acoustic sensors

Elastic full-waveform inversion of vertical seismic profile data acquired with distributed acoustic sensors

Time‐lapse full waveform inversion of vertical seismic profile data: Workflow and application to the CO2CRC Otway project

Anisotropic elastic full-waveform inversion of walkaway vertical seismic profiling data from the Arabian Gulf

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