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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 20 of 38 for “"rock physics"”.
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Rock physics investigations using pressure oscillations
… storage capacity and pseudo-bulk modulus of rocks simultaneously. I present the method, calibration measurements (capillary tube) and sample measurements (sandstone) of permeability and storage capacity at reservoir conditions. A concurrent measurement of elastic properties during the …
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Full waveform inversion combining rock physics for seismic reservoir characterization and monitoring
Quantitative estimation of rock physics properties, such as porosity, lithology, and fluid saturation, is an important part of reservoir characterization. Most current seismic workflows in this field are based on amplitude variation with offset (AVO). Full waveform inversion (FWI) methods, although …
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Rock Physics Study of Lacustrine Shales and Applications in Geophysical Prediction of Sweet Spot
Rock physics analysis is crucial in bridging seismic data with reservoir properties. Although shale oil reservoirs are considered to be significant hydrocarbon resources, their exploration and extraction still pose challenges, especially in lacustrine shale environments. I conducted a comprehensive …
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Anisotropic analysis of unconventional reservoirs using rock physics model: Eagle Ford shale case study
… that Eagle Ford shale is a world-class source rock. Rock physics models help characterize the elastic properties of conventional and unconventional reservoirs. In this thesis, I present a novel rock physics model for organic-rich shales. The extended Maxwell homogenization scheme is utilized as …
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Dynamic reservoir characterization using 4D multicomponent seismic data and rock physics modeling at Delhi field, Louisiana
… 4D multicomponent seismic technologies. Dynamic rock physics modeling integrates the rich dataset of core, well logs, petrographic thin sections and facies providing a link between reservoir and elastic properties. The dynamic modeling in this high porosity sandstone reservoir shows that P-wave …
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Using rock physics to determine uncertainties in pore-fluid and lithology-estimates from seismic attributes in the Bredasdorp Basin, offshore South Africa
… seismic attributes and wireline log data through rock physics relationships and supervised statistical classification. The workflow was developed mainly for hydrocarbon exploration, but could be used for other purposes, provided the target is seismically detectible. Any prior regional geological …
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Applicability of rock physics models in conjunction with seismic inverted data to characterize a low poro-perm gas-bearing sandstone reservoir for well location optimization, Bredasdorp Basin, SA
… of this dissertation is to develop a predictive rock physics theory that establishes relations between rock properties and the observed seismic and to present the results of different seismic characterization techniques to interpret a tight gas sand reservoir off the south coast of South Africa …
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Ultrasonic velocity measurements of simulated lunar regolith with variable ice content: a laboratory and modeling investigation with implications for geophysical lunar resource exploration
… also be processed into human consumables or rocket propellant for future missions. To date, remote sensing measurements have established the presence of water ice within some craters near the lunar poles, but little is known about the distribution and concentration of ice throughout the lunar …
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Wettability assessment using resistivity and NMR measurements
The wettability of reservoir rocks influences multi-phase fluid flow and rock physics measurements. This impacts the relative permeability, recovery factor, choice of enhanced oil recovery method, and reservoir characterization. Wettability can be assessed using contact angle measurements and the …
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Two-Phase Flow at the Pore-Scale Using the Volume of Fluid Method
The aim of this thesis is to use digital rock physics for understanding flow through porous media. Pore-scale simulations were conducted using the Finite Volume method to solve the Navier-Stokes equations, and the Volume of Fluid method for capturing interface. A workflow is provided, in which …
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Time-Lapse Depletion Modeling Sensitivity Study: Gas-Filled Gulf of Mexico Reservoir
… Time-lapse modeling, using a stress-dependent rock physics model, helps determine the need and frequency of expensive repeat seismic acquisition. We simulate a Gulf of Mexico gas reservoir time-lapse response for depletion and water flooding using uncertainty ranges in water saturation, …
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Geophysical Investigation of the Yellowstone Hydrothermal System
… (EM) survey with research drillhole data and rock physics models to investigate the controls on electrical conductivity in the upper few hundreds of meters of the Yellowstone hydrothermal system. Resistivities in Yellowstone are the product of complex variations of lithology, temperature, …
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4D seismic analysis: discriminating between saturation and pressure changes form a data acquired Offshore Equatorial Guinea
… presence of reservoir samples. For this project, rock samples of the reservoir were not available; this led me to modify Landrø's methodology using approximations based on well-accepted rock physics relationships. I tested this new methodology on a synthetic model, which gave encouraging results, …
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Simulating complex conductivity in carbonate rocks: using digital carbonate rocks and comparison to laboratory measurements
Digital rock physics involves the modern microscopic imaging of geomaterials, digitalization of the microstructure, and numerical simulation of physical properties of rocks. This physics-based approach can give important insight into understanding properties of reservoir rocks, and help reveal the …
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Seismic Data Conditioning and Inversion with Bayesian Methods and Dynamic Time-Warping
… to a reservoir scientist. Often interest lies in rock-physics models that can quantify elastic property variation with effective pressure at all porosities. Proposed moduli-velocity model in conjunction with Gassmann model is utilized to invert for dynamic petrophysical properties (water …
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Multi-GPU Based Lattice Boltzmann Flow Simulations in Porous Media
Characterization of rock and fluid properties is vital in producing oil and gas from reservoirs in an economically viable fashion. Digital rock physics for the estimation of petrophysical properties has become a powerful tool that greatly compliments lab experiments by combining advanced imaging …
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Deep learning methods for shear log predictions in the Volve field Norwegian North Sea
… velocity logs are an essential component for rock physics analysis in order to constrain seismic inversion results for potential reservoir pay intervals, in reservoir characterization practices. Often, shear logs are missing to reduce well logging costs, or the data are of poor quality due to …
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