Facies-constrained FWI: Toward application to reservoir characterization

Handle URI:
http://hdl.handle.net/10754/626701
Title:
Facies-constrained FWI: Toward application to reservoir characterization
Authors:
Kamath, Nishant; Tsvankin, Ilya; Naeini, Ehsan Zabihi
Abstract:
The most common approach to obtaining reservoir properties from seismic data exploits the amplitude variation with offset response of reflected waves. However, structural complexity and errors in the velocity model can severely reduce the quality of the inverted results. Full-waveform inversion (FWI) has shown a lot of promise in obtaining high-resolution velocity models for depth imaging. We propose supplementing FWI with rock-physics constraints obtained from borehole data to invert for reservoir properties. The constraints are imposed by adding appropriately weighted regularization terms to the objective function. The advantages of this technique over conventional FWI algorithms are shown by conducting synthetic tests for both isotropic and VTI (transversely isotropic with a vertical symmetry axis) models. The medium parameterization for FWI is selected using radiation (scattering) patterns of perturbations in the model parameters.
Citation:
Kamath N, Tsvankin I, Naeini EZ (2017) Facies-constrained FWI: Toward application to reservoir characterization. The Leading Edge 36: 924–930. Available: http://dx.doi.org/10.1190/tle36110924.1.
Publisher:
Society of Exploration Geophysicists
Journal:
The Leading Edge
Issue Date:
1-Nov-2017
DOI:
10.1190/tle36110924.1
Type:
Article
ISSN:
1070-485X; 1938-3789
Sponsors:
This work was supported by the Consortium Project on Seismic Inverse Methods for Complex Structures at the Center for Wave Phenomena (CWP) and competitive research funding from the King Abdullah University of Science and Technology (KAUST). We are grateful to Tariq Alkhalifah (KAUST) and Antoine Guitton (CWP) for fruitful discussions. The reproducible numerical examples are generated with the Madagascar open-source software package freely available from www.ahay.org.
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Full metadata record

DC FieldValue Language
dc.contributor.authorKamath, Nishanten
dc.contributor.authorTsvankin, Ilyaen
dc.contributor.authorNaeini, Ehsan Zabihien
dc.date.accessioned2018-01-04T07:51:40Z-
dc.date.available2018-01-04T07:51:40Z-
dc.date.issued2017-11-01en
dc.identifier.citationKamath N, Tsvankin I, Naeini EZ (2017) Facies-constrained FWI: Toward application to reservoir characterization. The Leading Edge 36: 924–930. Available: http://dx.doi.org/10.1190/tle36110924.1.en
dc.identifier.issn1070-485Xen
dc.identifier.issn1938-3789en
dc.identifier.doi10.1190/tle36110924.1en
dc.identifier.urihttp://hdl.handle.net/10754/626701-
dc.description.abstractThe most common approach to obtaining reservoir properties from seismic data exploits the amplitude variation with offset response of reflected waves. However, structural complexity and errors in the velocity model can severely reduce the quality of the inverted results. Full-waveform inversion (FWI) has shown a lot of promise in obtaining high-resolution velocity models for depth imaging. We propose supplementing FWI with rock-physics constraints obtained from borehole data to invert for reservoir properties. The constraints are imposed by adding appropriately weighted regularization terms to the objective function. The advantages of this technique over conventional FWI algorithms are shown by conducting synthetic tests for both isotropic and VTI (transversely isotropic with a vertical symmetry axis) models. The medium parameterization for FWI is selected using radiation (scattering) patterns of perturbations in the model parameters.en
dc.description.sponsorshipThis work was supported by the Consortium Project on Seismic Inverse Methods for Complex Structures at the Center for Wave Phenomena (CWP) and competitive research funding from the King Abdullah University of Science and Technology (KAUST). We are grateful to Tariq Alkhalifah (KAUST) and Antoine Guitton (CWP) for fruitful discussions. The reproducible numerical examples are generated with the Madagascar open-source software package freely available from www.ahay.org.en
dc.publisherSociety of Exploration Geophysicistsen
dc.subjectanisotropyen
dc.subjectfull-waveform inversionen
dc.subjectreservoir characterizationen
dc.titleFacies-constrained FWI: Toward application to reservoir characterizationen
dc.typeArticleen
dc.identifier.journalThe Leading Edgeen
dc.contributor.institutionFormerly Colorado School of Mines; presently Université Grenoble Alpes.en
dc.contributor.institutionColorado School of Mines.en
dc.contributor.institutionIkon Science.en
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