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- W2316546966 abstract "PreviousNext No AccessSEG Technical Program Expanded Abstracts 2013Inversion of multicomponent seismic time shifts for reservoir parameters: A feasibility studyAuthors: Steven SmithIlya TsvankinSteven SmithCenter for Wave Phenomena, Colorado School of MinesSearch for more papers by this author and Ilya TsvankinCenter for Wave Phenomena, Colorado School of MinesSearch for more papers by this authorhttps://doi.org/10.1190/segam2013-0734.1 SectionsSupplemental MaterialAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract Pressure drops associated with reservoir production generate excess stress and strain that cause traveltime shifts of reflected waves. Here, we invert compaction-induced time shifts of P-, S-, and PS-waves for reservoir pressure, length, and subsurface stress/strain using a hybrid global/gradient algorithm. Optimal estimates of reservoir pressure from P-wave data can be obtained using the reflections from the reservoir top. For Swaves, time shifts from the top of the reservoir can be inverted for pressure if the noise level is low. However, for significant noise contamination, it is better to use S-wave data (or combined shifts of all three modes) from reflectors beneath the reservoir. Reservoir length can be estimated using the time shifts of any mode from the reservoir top or deeper reflectors. The differences between the actual strain field and those corresponding to the best-case P- and S-wave inversions are less than 20%. Our results suggest which wave types and reflector locations may provide the most accurate estimates of reservoir parameters and compaction-induced strains from time-lapse data. Permalink: https://doi.org/10.1190/segam2013-0734.1FiguresReferencesRelatedDetails SEG Technical Program Expanded Abstracts 2013ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2013 Pages: 5258 Publisher:Society of Exploration Geophysicists HistoryPublished: 19 Aug 2013 CITATION INFORMATION Steven Smith and Ilya Tsvankin, (2013), Inversion of multicomponent seismic time shifts for reservoir parameters: A feasibility study, SEG Technical Program Expanded Abstracts : 4937-4942. https://doi.org/10.1190/segam2013-0734.1 Plain-Language Summary PDF DownloadLoading ..." @default.
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- W2316546966 title "Inversion of multicomponent seismic time shifts for reservoir parameters: A feasibility study" @default.
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