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Showing 1 to 20 of 241 for “"shales"”.
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Wellbore stability in water-sensitive shales
<p>Wellbore instability is a widespread problem, especially when drilling in deep, low strength shale formations at high temperature and pressure. The instability can be caused by the high compressive effective stress or tensile stress due to the stress concentration and pore pressure increase …
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Microporoelastic modeling of organic-rich shales
Due to their abundance, organic-rich shales are playing a critical role in re-defining the world's energy landscape leading to shifts in global geopolitics. However, technical challenges and environmental concerns continue to contribute to the slow growth of organic-rich shale exploration and …
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Nanoscale Transport of Multicomponent Fluids in Shales
CO2 injection has demonstrated significant potential for enhanced oil recovery techniques in unconventional reservoirs, but there exists many challenges in optimizing its operations due to the limited understanding of CO2-oil transport mechanisms in these systems. This dissertation addresses these …
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Multi-Scale Nanoindentation For Characterization Of Oil Shales
Studies of the effects of polishing techniques, scale of nanoindentation, and petrophysical properties were conducted on both Woodford and Tuscaloosa Marine Shale. Polishing procedures include both an in-house developed, mechanical sample preparation protocol as well as ion beam milling. The …
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The analysis of organic matter in oil-shales
The organic matter in five oil shales (three from the Kimmeridge Clay sequence, one from the Oxford Clay sequence and one from the Julia Creek deposits in Australia) has been isolated by acid demineralisation, separated into kerogens and bitumens by solvent extraction and then characterised in some …
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Effect of sample disturbance in opalinus clay shales
The sample disturbance problem for different geomaterials is reviewed in this thesis. A general discussion on the disturbance sources and complexities of the disturbance problem is followed by detailed reviews on disturbance mechanisms and effects in soil and rock. This investigation leads to the …
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A numerical compaction model of overpressuring in shales
A one-dimensional, numerical model of sediment compaction has been developed using porosity, velocity of sediment particles, and depth of the evolving basin as master variables. The governing set of nonlinear, partial differential equations are solved by a finite difference scheme devised to be …
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Factors determining the colors of red and green shales
Typescript, etc.
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Durability - Plasticity Classification of Shales and Other Argillaceous Rocks
Made available in DSpace on 2014-12-11T18:09:57Z (GMT). No. of bitstreams: 1 7212171.pdf: 4548230 bytes, checksum: 6bf55cf86e4568b6d5517f3e983aacc8 (MD5) Previous issue date: 1971
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Movement of landslides in stiff clays and clay shales
… reactivated landslides in stiff clays and clay shales move at all factors of safety; however, will not accelerate catastrophically. The proposed method, allowing the prediction of movement rate, will permit the planning, design and constructions of structures and infrastructures on reactivated …
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Material invariant properties of shales : nanoindentation and microporoelastic analysis
Shales compose the major part of sedimentary rocks and cover most of hydrocarbon bearing reservoirs. Shale materials are probably one of the most complex natural composites, and their mechanical properties are still an enigma that has deceived many decoding attempts from experimental and …
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ELASTIC, MICROSTRUCTURAL AND GEOCHEMICAL CHARACTERIZATION OF KEROGEN MATURITY FOR SHALES
… porosity and ultrasonic measurements on shales and kerogen. It also involves working with SEM and micro-CT scan for microstructural characterization. Porosity and seismic velocities are measured on an immature Green River shale sample. The sample is then subjected to anhydrous pyrolysis …
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High temperature characterization of oil shales: the Green River Formation
Includes bibliographical references.
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Axial behavior of drilled shafts socketed into weak Pennsylvanian shales
DSpace SAF Submission Ingestion Package generated from Vireo submission #13215 on 2019-02-07 at 14:22:36
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THE APPLICATION OF OXIDATIVE HYDROTHERMAL DISSOLUTION (OHD) TO ORGANIC-RICH SHALES
… explores the application of OHD to organic-rich shales, providing a baseline investigation into how highly aliphatic materials react under OHD conditions, what types of products are created during the process, whether the products are economically valuable, and whether they provide novel …
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The Origin of Pyrophyllite-Rectorite in Shales of North Central Utah
Made available in DSpace on 2014-12-09T20:34:36Z (GMT). No. of bitstreams: 1 6915317.pdf: 4414656 bytes, checksum: 1131a9b9bb2b91df370c86bb5d790601 (MD5) Previous issue date: 1969
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Petrology of Upper Paleozoic Clays and Shales of North Central Texas
Made available in DSpace on 2014-12-04T19:14:09Z (GMT). No. of bitstreams: 1 6104375.pdf: 7047789 bytes, checksum: c9b949f03d80ddd24a59528db749e139 (MD5) Previous issue date: 1961
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Sorption of selected inorganic materials on raw and retorted oil shales
… risks associated with the disposal of processed shales and process wastewaters, an appreciation for the sorption/desorption (S/D) characteristics of oil shales is required. The overall objective of this research was to evaluate the S/D capacity of four types of shale: Antrim (spent, eastern …
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