Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"Seismic modeling"”.
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Seismic Modeling and Imaging for Detection of Clandestine Tunnels
… established yet. Among many proposed methods, seismic method is a promising technique for imaging those tunnels, despite its many potential drawbacks, such as low signal-to-noise ratio (S/N), scattering, absorption, and heterogeneity of complex subsurface structures. Instead, by assigning …
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Gravitational tectonic and static seismic modeling with finite elements
Includes bibliographical references (pages 105-109; supplement: pages 131).
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Seismic modeling, analysis and design of structural concrete pile-deck connections
… primary efforts related to the assessment of the seismic behavior of shallow embedment, structural concrete pile-deck connections: (i) the implementation and validation of a computational model that includes the resulting rotations due to slip of reinforcing dowels at the pile-deck interface, (ii) …
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Characterizing fault structure and general morphology of the Tensleep Sandstone of Teapot Dome, Wyoming as it relates to industrial carbon sequestration
… as NPR-3, or the Teapot Dome oilfield. Using seismic modeling and subsurface modeling software packages to interpret seismic data of the region, geologic features and faults are mapped. These maps provide valuable characterization information useful to an overall evaluation of the …
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Monotonic and Cyclic Simulation of Screw-Fastened Connections for Cold-Formed Steel Framing
This thesis introduces an approach for modeling the monotonic and cyclic response of cold-formed steel framing screw-fastened connections in commercial finite element programs. The model proposed and verified herein lays the groundwork for seismic modeling of cold-formed steel (CFS) framing …
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Azimuthal P-wave AVA Inversion for Fracture Orientation and Density
This thesis studies the numerical seismic modeling of a simulated fractured medium to analyze variations of seismic reflection 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 …
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Physical Modeling and Analysis of Seismic Data from a Simulated Fractured Medium
This thesis studies the physical seismic modeling of a simulated fractured medium to examine variations of seismic re ection amplitudes 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 …
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Evaluating the impact of deep-water channel architecture on the probability of correct facies classification using 3D synthetic seismic data
Modeling studies of bed-to geobody-scale architecture in deep-water channel deposits reveal that channel element stacking patterns and internal architecture strongly control connectivity. This architecture is critical to understanding hydrocarbon flow and recovery but is unresolvable in …
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Inversion of azimuthal velocity and amplitude variations for seismic anisotropy
… A pattern of vertical fractures causes the seismic wavefield to exhibit azimuthal anisotropy. The best way known to detect fractures, at large scales, is by recognizing the effect of them on seismic data in attempt of inversing it. The Altamont-Bluebell play is within the Uinta Basin in …
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Source parameters of the major historical earthquakes in the Tien-Shan region from the late 19th to the early 20th century
… belt is characterized by a very high rate of seismicity along its margins as well as within the Tien-Shan interior. The study area of the here presented thesis, the western part of the Tien-Shan region, is currently seismically active with small and moderate sized earthquakes. However, at the …
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Seismic Expressions of Paleokarst
… resources. This dissertation examines worldwide seismic expression of paleokarst; and specifically, the characterization of paleokarst reservoirs developed across the Cherokee Platform, and in the Arkoma Basin, Oklahoma. </p> <p>Worldwide subsurface paleokarst formations are of Precambrian to …
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SEISMIC FIRST BREAK PICKING ALGORITHM WITH CASE STUDIES FOR FULL WAVE ELASTIC PHYSICAL MODELING IN THE LAB
… thesis presents several experiments of physical modeling in the Allied Geophysical Lab (AGL) at the University of Houston. The purpose of our physical models is to simulate the shallow water seismic acquisition using aluminum to represent a hard seafloor. The calibration of the model requires …
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A search for layering in the oceanic crust
The results of numerous seismic refraction and reflection experiments have shown that the seismic structure of the oceanic crust can be usefully parameterized by a small number of locally horizontal layers within which the rates of change of velocity and impedance as a function of depth are …
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Geophysical Numerical Modeling Approach for Characterizing and Monitoring Potential Carbon Sequestration Injection Sites
… to address that concern. Geophysical methods, seismic and electromagnetic, play a crucial role in monitoring the subsurface pre- and post-injection. Seismic techniques have been the most popular but electromagnetic methods are gaining interest. The primary goal of this project was to develop a …