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Showing 1 to 6 of 6 for “"AVAZ"”.
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Time-lapse seismic AVAz in the Stocker Field
… Amplitude Variation with Offset and Azimuth (AVAz) methodologies can help us determine parameters related to fractures. Here we employ two different methodologies, namely, Rüger’s method and Fourier Coefficients decomposition method, to address this problem using seismic data targeting the …
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Azimuthal P-wave AVA Inversion for Fracture Orientation and Density
… amplitudes with incident and azimuthal angles (AVAZ). The intent is to extract the information about the fracture orientation and intensity of a fractured medium. The effective compliance tensor for a fractured medium can be written as the sum of the compliance tensor of the unfractured …
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Scattering of Seismic Waves from Arbitrary Viscoelastic-Isotropic and Anisotropic Structures with Applications to Data Modelling, FWI Sensitivities and Linearized AVO-AVAz Analysis
… amplitude-variation-with-offset or azimuth (AVO/AVAz) analysis. By decomposition of the scattering potentials into isotropic, viscoelastic and anisotropic components, we specify the effects of anelasticity, inhomogeneity of wave and anisotropy on radiation patterns and the linearized AVO/AVAz …
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Physical Modeling and Analysis of Seismic Data from a Simulated Fractured Medium
… with source-receiver o set and azimuth (AVAZ). The intent is to extract information about the fracture orientation and magnitude of the anisotropy of a naturally fractured medium. The simulated fractured medium is constructed from phenolic LE-grade material which exhibits orthorhombic …
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Edge-choosability of Planar Graphs
According to the List Colouring Conjecture, if G is a multigraph then χ' (G)=χl' (G) . In this thesis, we discuss a relaxed version of this conjecture that every simple graph G is edge-(∆ + 1)-choosable as by Vizing’s Theorem ∆(G) ≤χ' (G)≤∆(G) + 1. We prove that if G is a planar graph without …
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Inversion of azimuthal velocity and amplitude variations for seismic anisotropy
Natural fractures can play a key role in production of hydrocarbon in the form of increased porosity and permeability for efficient fluid flow especially for unconventional reservoirs of low matrix permeability. Thus, knowledge related to fracture orientation and intensity is vital for the …