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Dissertations / Theses on the topic 'Full wavefrom inversion'

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Published: 5 October 2024
Last updated: 31 July 2025

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1

Guo, Gaoshan. "Inversion de la forme d'onde complète à source étendue dans le domaine temporel : théorie, algorithme et application." Electronic Thesis or Diss., Université Côte d'Azur, 2024. http://www.theses.fr/2024COAZ5014.

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La Full waveform inversion (FWI) est devenue la méthode d'imagerie de référence en exploration géophysique. FWI utilise les formes d'ondes complètes pour imager le sous-sol avec une résolution d'un demi longueur d'onde. Etant donné la dimension de l'espace des données et des modèles, la FWI est implémentée avec des méthodes d'optimisation locale sur un espace de recherche réduit où l'équation d'onde est résolue exactement à chaque itération. Cela requiert des modèles initiaux précis pour que les données simulées prédisent les données enregistrées sans saut de phase. Pour relâcher cette conditi
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Thomassen, Espen. "Full-waveform inversion studies." Thesis, Norwegian University of Science and Technology, Department of Electronics and Telecommunications, 2008. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-9722.

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<p>In this master thesis, full-waveform inversion (FWI) was applied to a synthetic, and very complex, geological structure containing a salt body. The main objective was to evaluate the capabilities of FWI to estimate velocities in this context, and more specially below the salt. Seismic depth imaging is now the preferred seismic imaging tool for today's most challenging exploration projects. Seismic depth imaging problem usually requires the definition of a smooth background velocity model before determining the short wavelength component of the structure by pre-stack depth migration. It is
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3

Irabor, Kenneth Otabor. "Reflection full waveform inversion." Thesis, Imperial College London, 2016. http://hdl.handle.net/10044/1/60594.

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The Full Waveform Inversion (FWI) gradient is composed of a low wavenumber tomographic component and a high wavenumber migration component. A successful application of FWI requires that the low wavenumber parts of the model be recovered before the high wavenumbers. This process becomes difficult in datasets dominated by pre-critical angle reflection energies. Reflection waveform inversion (RWI) has been proposed as an alternative to help bootstrap the FWI method for reflection data. In this thesis, I have made a novel contribution to RWI using Finite Di fference Explicit Wavefi eld Decompositi
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4

Guasch, Lluis. "3D elastic full-waveform inversion." Thesis, Imperial College London, 2012. http://hdl.handle.net/10044/1/9974.

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Full Waveform Inversion (FWI) is a depth imaging technique that takes advantage of the full information contained in recorded seismic data. FWI provide high resolution images of subsurface properties, usually seismic velocities or related parameters, although in theory it could image any property used to formulate the wave equation. The computational cost of the methodology has historically limited its application to 3D acoustic approximations but recent developments in hardware capabilities have increased computer power to the point that more realistic approximations are viable. In this work
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Debens, Henry Alexander. "Three-dimensional anisotropic full-waveform inversion." Thesis, Imperial College London, 2015. http://hdl.handle.net/10044/1/32407.

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Full-waveform inversion (FWI) is a powerful nonlinear tool for quantitative estimation of high-resolution high-fidelity models of subsurface seismic parameters, typically P-wave velocity. A solution is obtained via a series of iterative local linearised updates to a start model, requiring this model to lie within the basin of attraction of the solution space's global minimum. The consideration of seismic anisotropy during FWI is vital, as it holds influence over both the kinematics and dynamics of seismic waveforms. If not appropriately taken into account, then inadequacies in the anisotropy m
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Kamath, Nishant. "Full-waveform inversion in 2D VTI media." Thesis, Colorado School of Mines, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10116167.

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<p> Full-waveform inversion (FWI) is a technique designed to produce a high-resolution model of the subsurface by using information contained in entire seismic waveforms. This thesis presents a methodology for FWI in elastic VTI (transversely isotropic with a vertical axis of symmetry) media and discusses synthetic results for heterogeneous VTI models. </p><p> First, I develop FWI for multicomponent data from a horizontally layered VTI model. The reflectivity method, which permits computation of only PP reflections or a combination of PP and PSV events, is employed to model the data. The Gau
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7

Li, Xiang. "Sparsity promoting seismic imaging and full-waveform inversion." Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/54255.

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This thesis will address the large computational costs of solving least-squares migration and full-waveform inversion problems. Least-squares seismic imaging and full-waveform inversion are seismic inversion techniques that require iterative minimizations of large least-squares misfit functions. Each iteration requires an evaluation of the Jacobian operator and its adjoint, both of which require two wave-equation solves for all sources, creating prohibitive computational costs. In order to reduce costs, we utilize randomized dimensionality reduction techniques, reducing the number of sources u
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8

Roberts, Mark Alvin. "Full waveform inversion of walk-away VSP data." Paris, Institut de physique du globe, 2007. http://www.theses.fr/2007GLOB0020.

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Du fait de l’épuisement des réserves de pétrole, l’exploration et la production sont réalisées dans des environnements de plus en plus complexes. Faire de l’imagerie sismique sous le sel allochtone (par exemple dômes de sel) demeure une tâche difficile à cause du fait contraste de vitesse dentre le sel et les sédiments voisins et les structures très complexes produites par les déplacements de sel. Les nappes de sel allochtone couvrent de nombreuses régions potentiellement productives dans l’offshore profond du Golfe du Mexique. Forer la base du sel est une tâche extrêmement difficile en raison
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Al-Yaqoobi, Ahmed Musallam Ali. "Full-waveform inversion to 3D seismic land data." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/10927.

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Full-waveform inversion (FWI) is a technique that seeks to find a high-resolution high-fidelity model of the Earth's subsurface that is capable of matching individual seismic waveforms, within an original raw field dataset, trace by trace. The method begins from a best-guess starting model, which is then iteratively improved using a sequence of linearized local inversions to solve a fully non-linear problem. In principle, FWI can be used to recover any physical property that has an influence upon the seismic wavefield, but in practice the technique has been used predominantly to recover P-wave
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10

Egorov, Anton. "Full waveform inversion of time-lapse VSP data." Thesis, Curtin University, 2018. http://hdl.handle.net/20.500.11937/79285.

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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 dept
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Fichtner, Andreas. "Full seismic waveform inversion for structural and source parameters." Diss., lmu, 2010. http://nbn-resolving.de/urn:nbn:de:bvb:19-114940.

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12

Calderon, Agudo Oscar. "Acoustic full-waveform inversion in geophysical and medical imaging." Thesis, Imperial College London, 2018. http://hdl.handle.net/10044/1/62620.

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Imaging methods are employed in multiple scientific disciplines to obtain properties of targets that are otherwise invisible to the human eye, such as for imaging the earth’s interior or the human body. In geophysics, the full-waveform inversion (FWI) method is often used to recover high-quality high-fidelity models of the subsurface by recording seismic data in the field, and modelling wave propagation with a wave equation. But the visco-elastic nature of the subsurface is typically ignored, and the acoustic approximation of the wave equation is utilised to reduce the compute costs. This resu
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Thurin, Julien. "Uncertainties estimation in Full Waveform Inversion using Ensemble methods." Thesis, Université Grenoble Alpes, 2020. https://tel.archives-ouvertes.fr/tel-02570602.

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L'inversion de forme d'onde complète (FWI) est une méthode d'inversion non-linéaire qui a pour but l'obtention de modèles précis des propriétés physiques du sous-sol terrestre. Ces modèles, véritables cartes de propriétés physiques, sont indispensables pour l'exploration et l'étude des structures internes de la Terre.Généralement formulée sous la forme d'un schéma d'optimisation par la méthode des moindres carrés, la FWI compare des enregistrements sismiques observés en surface, avec des données synthétiques calculées à partir d'un modèle numérique de sous-sol. Alors qu'une infinité de modèles
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Shah, Nikhil. "Seismic 'Full Waveform Inversion' of wrapped and unwrapped phase." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/24849.

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Full Waveform Inversion (FWI) is a highly promising but far from robust and stable optimisation for computing the subsurface velocity model from seismic data acquired with long offsets and low frequencies. Mathematically, it solves the non-linear problem of matching model-predicted data to observed data with an iterative localised minimisation of the misfit. Therefore it is necessarily restricted by the need for an accurate starting model. In this thesis, we look at being able to relax the constraints on the starting model in FWI, obtain lower wavenumber updates from FWI, and in the process di
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15

Ben, Hadj Ali Hafedh. "Three dimensional visco-acoustic frequency domain full waveform inversion." Nice, 2009. http://www.theses.fr/2009NICE4111.

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En exploration sismique, il est primordial d’extraire des données enregistrées les paramètres physiques étudiés du sous-sol afin de localiser correctement les réservoirs potentiels. Dans ce cas, l’imagerie sismique est l’une des plus importantes étapes dans cette quête. Le processus d’imagerie a reposé pendant longtemps sur une décomposition par échelles : la première étape consiste à construire un modèle de vitesse des bas nombres d’ondes qui explique correctement la cinématique du signal enregistré et la seconde à prendre en compte l’amplitude par migration afin de détecter les contrastes de
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Brown, Vanessa. "Integration of seismic full waveform and controlle-source marine electromagnetic inversion." Institut de physique du globe (Paris), 2012. http://www.theses.fr/2012GLOB1201.

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Van, Vorst Daryl. "Cross-hole GPR imaging : traveltime and frequency-domain full-waveform inversion." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/51664.

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Ground-penetrating radar (GPR) has the potential for high-resolution imaging of near-surface material properties, including electrical conductivity and permittivity, which can be used for geological interpretation of the near subsurface. This thesis presents ray-based traveltime inversion and frequency-domain full-waveform inversion (FWI) techniques for application to borehole GPR surveys. Ray-based traveltime inversion is attractive for its speed, reliability, and ability to work in 3D, but the ray approximation involved limits recoverable detail to greater than one wavelength. The traveltime
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18

Knaute, Philip Horst. "Full-waveform inversion for near-surface characterisation using land-seismic data." Thesis, University of Cambridge, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708885.

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Silverton, Akela Tian Theresa. "Applied 3D full-waveform inversion : increasing the resolution and depth penetration." Thesis, Imperial College London, 2015. http://hdl.handle.net/10044/1/44733.

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High-resolution velocity models, at near surface and deeper reservoir depths are produced with three-dimensional, acoustic, anisotropic, full-waveform inversion. Industry experts show eager interest in the development of this technology with a drive to push its application to reflection-dominated streamer datasets as well as ocean-bottom-node datasets in geologically complex environments. Here, a robust methodology employing the use of key strategies to address the inversion of such datasets, attaining increased resolution and depth penetration, is explored. Synthetic tests were undertaken to
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Jazayeri, Sajad. "Full-waveform Inversion of Common-Offset Ground Penetrating Radar (GPR) data." Scholar Commons, 2019. https://scholarcommons.usf.edu/etd/7815.

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Maintenance of aging buried infrastructure and reinforced concrete are critical issues in the United States. Inexpensive non-destructive techniques for mapping and imaging infrastructure and defects are an integral component of maintenance. Ground penetrating radar (GPR) is a widely-used non-destructive tool for locating buried infrastructure and for imaging rebar and other features of interest to civil engineers. Conventional acquisition and interpretation of GPR profiles is based on the arrival times of strong reflected/diffracted returns, and qualitative interpretation of return amplitudes.
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Gholami, Yaser. "Two-dimensional seismic imaging of anisotropic media by full waveform inversion." Nice, 2012. http://www.theses.fr/2012NICE4048.

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L’utilisation du formalisme TG43 est courante dans la plupart des Systèmes de planification de Traitement (SPT) dédiés à la curiethérapie. Les grandeurs physiques issues de ce formalisme sont généralement obtenues à partir de simulation Monte Carlo et présentées sous forme d’abaques servant de référence. L’utilisation du code PENELOPE en curiethérapie est très récente ; Sa jeunesse a justifié autant notre choix que son absence de la littérature. Notre choix s’est porté sur PENELOPE pour différentes raisons. La première est que sa physique est plus récente assurant une meilleure précision des r
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Krischer, Lion [Verfasser], and Heiner [Akademischer Betreuer] Igel. "Scaling full seismic waveform inversions / Lion Krischer ; Betreuer: Heiner Igel." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2017. http://d-nb.info/1137835230/34.

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Butzer, Simone [Verfasser], and T. [Akademischer Betreuer] Bohlen. "3D elastic time-frequency full-waveform inversion / Simone Butzer. Betreuer: T. Bohlen." Karlsruhe : KIT-Bibliothek, 2015. http://d-nb.info/107189403X/34.

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Trinh, Phuong-Thu. "3D Multi-parameters Full Waveform Inversion for challenging 3D elastic land targets." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAU033/document.

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L’imagerie sismique du sous-sol à partir de données terrestres est très difficile à effectuer due à la complexité 3D de la proche surface. Dans cette zone, les ondes sismiques sous forme d’un paquet compact de phases souvent imbriquées sont dominées par des effets élastiques et viscoélastiques, couplés aux effets dus à la surface libre qui génèrent des ondes de surface de grande amplitude et dispersives.L’interaction des ondes sismiques avec une topographie plus ou moins complexe dans un contexte de fortes hétérogénéités de la proche surface induit d’importantes conversions des ondes avec de f
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Sears, Timothy John. "Elastic full waveform inversion of multi-component ocean-bottom cable seismic data." Thesis, University of Cambridge, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.613186.

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GALUZZI, BRUNO GIOVANNI. "MODELLING AND OPTIMIZATION TECHNIQUES FOR ACOUSTIC FULL WAVEFORM INVERSION IN SEISMIC EXPLORATION." Doctoral thesis, Università degli Studi di Milano, 2018. http://hdl.handle.net/2434/545844.

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Full Waveform Inversion has become an important research field in the context of seismic exploration, due to the possibility to estimate a high-resolution model of the subsurface in terms of acoustic and elastic parameters. To this aim, issues such as an efficient implementation of wave equation solution for the forward problem, and optimization algorithms, both local and global, for this high non-linear inverse problem must be tackled. In this thesis, in the framework of 2D acoustic approximation, I implemented an efficient numerical solution of the wave equation based on a local order of app
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GALUZZI, BRUNO GIOVANNI. "Modelling and Optimization Techniques for Acoustic Full Waveform Inversion in Seismic Exploration." Doctoral thesis, Università degli Studi di Milano, 2018. http://hdl.handle.net/10281/204387.

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Full Waveform Inversion has become an important research field in the context of seismic exploration, due to the possibility to estimate a high-resolution model of the subsurface in terms of acoustic and elastic parameters. To this aim, issues such as an efficient implementation of wave equation solution for the forward problem, and optimization algorithms, both local and global, for this high non-linear inverse problem must be tackled. In this thesis, in the framework of 2D acoustic approximation, I implemented an efficient numerical solution of the wave equation based on a local order of app
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Zhang, Fengjiao. "Quantifying the Seismic Response of Underground Structures via Seismic Full Waveform Inversion : Experiences from Case Studies and Synthetic Benchmarks." Doctoral thesis, Uppsala universitet, Geofysik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-187142.

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Seismic full waveform inversion (waveform tomography) is a method to reconstruct the underground velocity field in high resolution using seismic data. The method was first introduced during the 1980’s and became computationally feasible during the late 1990’s when the method was implemented in the frequency domain. This work presents three case studies and one synthetic benchmark of full waveform inversion applications. Two of the case studies are focused on time-lapse cross-well and 2D reflection seismic data sets acquired at the Ketzin CO2 geological storage site. These studies are parts of
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Ernst, Jacques Robert. "2-D finite-difference time-domain full-waveform inversion of crosshole georadar data /." Zürich : ETH, 2007. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17105.

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Wellington, Paul John. "Efficient 1D, 2D and 3D Geostatistical constraints and their application to Full Waveform Inversion." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAU032/document.

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L'inversion de forme d'onde complète (FWI) est un processus non-linéaire et mal posé d’ajustement de données, dans notre cas, issues d’acquisitions simiques. Cette technique cherche à reconstruire, à partir d’un modèle initial obtenu à faible nombre d’onde (faible résolution), des paramètres constitutifs contrôlant la propagation des ondes à grands nombres d’ondes (forte résolution). Durant ce processus itératif, certains artéfacts peuvent altérer la qualité du modèle reconstruit. Afin de diminuer ces artéfacts et d’assurer une reconstruction des paramètres qui soit cohérente d’un point de vue
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Gras, Andreu Clàudia. "Inversion of multichannel seismic data by combination of travel-time and full-waveform tomography." Doctoral thesis, Universitat de Barcelona, 2019. http://hdl.handle.net/10803/668456.

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This thesis presents the implementation and application of a procedure combining different geophysical techniques to extract high-resolution information that helps characterizing the structure and properties (p-wave velocity, Vp) of the subsurface by using marine multichannel seismic (MCS) data alone. The challenge is overcoming the inherent non-linearity and non-uniqueness of inverse methods, in general, and of full-waveform inversion (FWI), in particular, which are especially critical for short-offset, band-limited seismic data. I have designed and applied a modelling sequence consisting of:
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Przebindowska, Anna [Verfasser], and T. [Akademischer Betreuer] Bohlen. "Acoustic Full Waveform Inversion of Marine Reflection Seismic Data / Anna Przebindowska. Betreuer: T. Bohlen." Karlsruhe : KIT-Bibliothek, 2013. http://d-nb.info/1037776216/34.

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Groos, Lisa [Verfasser], and T. [Akademischer Betreuer] Bohlen. "2D full waveform inversion of shallow seismic Rayleigh waves / Lisa Groos. Betreuer: T. Bohlen." Karlsruhe : KIT-Bibliothek, 2013. http://d-nb.info/1044956208/34.

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Zheng, York Yao. "Time-lapse seismic imaging using elastic full waveform inversion of ocean-bottom cable data." Thesis, University of Cambridge, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.648657.

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Zhou, Wei. "Velocity model building by full waveform inversion of early arrivals & reflections and case study with gas cloud effect." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAU024/document.

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L'inversion des formes d'onde (full waveform inversion, FWI) a suscité un intérêt dans le monde entier pour sa capacité à estimer de manière précise et détaillée les propriétés physiques du sous-sol. La FWI est généralement formulée sous la forme d'un problème d'ajustement des données par moindres carrés et résolus par une approche linéarisée utilisant des méthodes d'optimisation locales. Cependant, la FWI est bien connue de souffrir du problème de saut de phase rendant les résultats fortement dépendant de la qualité des modèles initiaux. L'inversion des formes d'ondes des arrivées réfléchies
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Klimm, Bernd [Verfasser], Axel [Akademischer Betreuer] Klar, and Thomas [Akademischer Betreuer] Bohlen. "Time Domain Full Waveform Inversion Using ADI Modeling / Bernd Klimm. Betreuer: Axel Klar ; Thomas Bohlen." Kaiserslautern : Technische Universität Kaiserslautern, 2013. http://d-nb.info/1041255543/34.

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Nangoo, Tenice Peaches. "Seismic full-waveform inversion of 3D field data : from the near surface to the reservoir." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/18898.

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The theory of FWI is well-established. However its practical application to 3D seismic datasets is still a subject of intense research. This technique has shown spectacular results in quantitatively extracting P-wave velocities in the shallow near surface at depths of less than 1 km, using wide-angle OBC datasets. This study deals with establishing a robust methodology for the application of FWI that can be routinely applied to analogous field datasets, both in the shallow near surface and at deeper reservoir depths. A practical strategy for anisotropic 3D acoustic FWI was developed and implem
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Irnaka, Theodosius Marwan. "3D elastic full waveform inversion for subsurface characterization.Study of a shallow seismic multicomponent field data." Thesis, Université Grenoble Alpes, 2021. http://www.theses.fr/2021GRALU004.

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L'inversion de forme d'onde complète (FWI) est une procédure d'ajustement itératif des données entre les données observées et les données synthétiques. Les données synthétiques sont calculées en résolvant une équation d'onde. La FWI vise à reconstruire les informations détaillées des propriétés physiques du sous-sol. La méthode FWI a été développée au cours des dernières décennies, grâce à l'augmentation de la capacité de calcul et au développement de la technologie d'acquisition. La FWI a également été appliquée à à des échelles variées, allant de l'échelle globale, lithosphérique, crustale,
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Baron, Julie <1987&gt. "Seismic tomographic full-waveform inversion for the Vrancea sinking lithosphere structure using the adjoint method." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6540/1/Baron_Julie_tesi.pdf.

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The Vrancea region, at the south-eastern bend of the Carpathian Mountains in Romania, represents one of the most puzzling seismically active zones of Europe. Beside some shallow seismicity spread across the whole Romanian territory, Vrancea is the place of an intense seismicity with the presence of a cluster of intermediate-depth foci placed in a narrow nearly vertical volume. Although large-scale mantle seismic tomographic studies have revealed the presence of a narrow, almost vertical, high-velocity body in the upper mantle, the nature and the geodynamic of this deep intra-continental seismi
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Baron, Julie <1987&gt. "Seismic tomographic full-waveform inversion for the Vrancea sinking lithosphere structure using the adjoint method." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6540/.

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The Vrancea region, at the south-eastern bend of the Carpathian Mountains in Romania, represents one of the most puzzling seismically active zones of Europe. Beside some shallow seismicity spread across the whole Romanian territory, Vrancea is the place of an intense seismicity with the presence of a cluster of intermediate-depth foci placed in a narrow nearly vertical volume. Although large-scale mantle seismic tomographic studies have revealed the presence of a narrow, almost vertical, high-velocity body in the upper mantle, the nature and the geodynamic of this deep intra-continental seismi
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Macedo, Daniel Leal 1975. "Scattering-based decomposition of sensitivity kernels of acoustic full waveform inversion = Decomposição baseada em teoria de espalhamento dos núcleos de sensibilidade da inversão de onda completa acústica." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265785.

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Orientador: Dietrich Wilhelm Schleicher<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica, Instituto de Geociências<br>Made available in DSpace on 2018-08-26T05:18:51Z (GMT). No. of bitstreams: 1 Macedo_DanielLeal_D.pdf: 16481305 bytes, checksum: 3d47b0427882ec03cc38bd035feee293 (MD5) Previous issue date: 2014<br>Resumo: A inversão de onda completa (FWI, do inglês ''full waveform inversion'') nãolinear baseada em gradientes (métodos de descida) é, a princípio, capaz de levar em conta todos os aspectos da propagação de onda contida nos dados síismicos.
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Athanasopoulos, Nikolaos [Verfasser], and T. [Akademischer Betreuer] Bohlen. "Challenges in near-surface seismic full-waveform inversion of field data / Nikolaos Athanasopoulos ; Betreuer: T. Bohlen." Karlsruhe : KIT-Bibliothek, 2020. http://d-nb.info/122302797X/34.

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Zhou, Zhen Verfasser], Klaus [Akademischer Betreuer] [Reicherter, and Harry [Akademischer Betreuer] Vereecken. "Enhanced crosshole GPR full-waveform inversion to improve aquifer characterization / Zhen Zhou ; Klaus Reicherter, Harry Vereecken." Aachen : Universitätsbibliothek der RWTH Aachen, 2020. http://d-nb.info/123131754X/34.

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Ehsan, Jamali Hondori. "Full waveform inversion of supershot-gathered data for optimization of turnaround time in seismic reflection survey." Kyoto University, 2016. http://hdl.handle.net/2433/217744.

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Musayev, Khayal [Verfasser], Klaus [Gutachter] Hackl, and Wolfgang [Gutachter] Friederich. "Seismic reconnaissance in a tunnel environment using full waveform inversion / Khayal Musayev ; Gutachter: Klaus Hackl, Wolfgang Friederich." Bochum : Ruhr-Universität Bochum, 2017. http://d-nb.info/1123283494/34.

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Ernesti, Johannes [Verfasser], and C. [Akademischer Betreuer] Wieners. "Space-Time Methods for Acoustic Waves with Applications to Full Waveform Inversion / Johannes Ernesti ; Betreuer: C. Wieners." Karlsruhe : KIT-Bibliothek, 2018. http://d-nb.info/1160303525/34.

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Schäfer, Martin [Verfasser], and T. [Akademischer Betreuer] Bohlen. "Application of full-waveform inversion to shallow-seismic Rayleigh waves on 2D structures / Martin Schäfer. Betreuer: T. Bohlen." Karlsruhe : KIT-Bibliothek, 2014. http://d-nb.info/1054396957/34.

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48

Seidl, Robert [Verfasser], Ernst [Akademischer Betreuer] Rank, Hans-Joachim [Gutachter] Bungartz, and Ernst [Gutachter] Rank. "Full Waveform Inversion for Ultrasonic Nondestructive Testing / Robert Seidl ; Gutachter: Hans-Joachim Bungartz, Ernst Rank ; Betreuer: Ernst Rank." München : Universitätsbibliothek der TU München, 2018. http://d-nb.info/1151638668/34.

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Jiang, Hao. "Imagerie sismique˸ stratégies d’inversion des formes d’onde visco-acoustique." Thesis, Paris Sciences et Lettres (ComUE), 2019. http://www.theses.fr/2019PSLEM013/document.

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Abstract:
L’atténuation sismique est un paramètre physique très utile pour décrire et imager les propriétés du sous-sol, et tout particulièrement les roches saturées et les nuages de gaz. Les approches classiques analysent l’amplitude du spectre des données ou bien la distorsion de ce spectre, avec des méthodes asymptotiques. L’inversion des formes d’onde (Full Waveform Inversion en anglais, FWI) est une approche alternative qui prend en compte les aspects de fréquences finies. En pratique, à la fois les vitesses et l’atténuation doivent être déterminées. Il est connu que l’inversion multi-paramètre ne
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Jiang, Hao. "Imagerie sismique˸ stratégies d’inversion des formes d’onde visco-acoustique." Electronic Thesis or Diss., Paris Sciences et Lettres (ComUE), 2019. http://www.theses.fr/2019PSLEM013.

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Abstract:
L’atténuation sismique est un paramètre physique très utile pour décrire et imager les propriétés du sous-sol, et tout particulièrement les roches saturées et les nuages de gaz. Les approches classiques analysent l’amplitude du spectre des données ou bien la distorsion de ce spectre, avec des méthodes asymptotiques. L’inversion des formes d’onde (Full Waveform Inversion en anglais, FWI) est une approche alternative qui prend en compte les aspects de fréquences finies. En pratique, à la fois les vitesses et l’atténuation doivent être déterminées. Il est connu que l’inversion multi-paramètre ne
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