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 11 of 11 for “"fractured rocks"”.
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Numerical and analytical modeling of heat transfer between fluid and fractured rocks
Modeling of heat transfer between fluid and fractured rocks is of particular importance for energy extraction analysis in EGS, and therefore represents a critical component of EGS design and performance evaluation. In conventional fracture dominated geothermal systems with reinjection, this …
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Experimental study of stress dependence of porosity and permeability in sandstones, carbonates, and fractured rocks
Includes bibliographical references (leaves 59-61).
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Mechanisms of Interaction Between Hydraulic and Natural Fractures in Shale Rocks
… energy systems that rely on fluid injection into fractured rocks. These include Enhanced Geothermal Systems (EGS), CO₂ sequestration, hydrogen storage in depleted reservoirs, unconventional oil and gas development in shale formations, and nuclear waste disposal, among others. In all these …
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Geomechanical characterizations and correlations to reduce uncertainties of carbonate reservoir analysis
… diagenetic processes in which brittle, ductile, fractured rocks, and vugular pores may all exist within small interval. This huge variance in the rock mechanical properties can cause challenges in the reservoir's development, especially in applications related to geomechanics.</p><p>The main …
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Long-term response of soils subjected to repetitive geoenvironmental loads
… phenomena in geomaterials, such as fractured rocks. Deformable PDMS captures the effect of the crystallization force. Pore network topology and surface wetting characteristics govern crystal growth patterns. Pore fluid chemistry cycles in fine-grained soils alter particle level …
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Shear Dispersion in Double-Porosity Systems
… find applications in solute transport through fractured rocks, fluid flow in hydraulically fractured shale reservoirs, separation of emulsions in microchannel-membrane systems, and electrically assisted chemical species transport in porous microfluidic networks.
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Computer vision and texture analysis for characterization of X-ray images of rocks
… has provided us digital twins of physical rocks. Digital twins are raw grayscale micro-CT images that contain information regarding rock-microstructure. These raw micro-CT images are then transformed into their segmented counterparts, which attempt to identify different rock materials as …
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Evaluation of Spring Discharge for Characterization of Groundwater Flow in Fractured Rock Aquifers: A Case Study from the Blue Ridge Province, VA
… also suitable for use in other locations where fractured rock and crystalline rock aquifers are common.
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Pore-scale dynamics of immiscible two-phase flow on porous and fractured media
… imbibition, a key oil recovery mechanism in the fractured reservoir rocks. A pore-scale computational study of the water imbibition into an articially generated dual-permeability porous matrix with a fracture attached on top is conducted. Several factors affecting the dynamic counter-current …
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Clay mineral formation and fluid-rock interaction in fractured crystalline rocks of the Rhine rift system : case studies from the Soultz-sous-Forêts granite (France) and the Schauenburg Fault (Germany)
… study deals with the fluid-alteration history of fractured and faulted crystalline granitic basement in the Rhine rift system, based on the analytical investigation of clay mineral assemblages. It evaluates the argillite mineralizations along faults and fracture zones at key tectonic positions in …
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Seismic characterization of fractured reservoirs (part I) ; Crustal deformation in the Tibetan Plateau (part II)
… of using P-waves to investigate properties of fractured reservoirs and the diagnostic ability of the P-wave seismic data to detect fractures. The objectives of this thesis are threefold: (1) to identify the effects of fracture parameters and background media on the NMO velocities and azimuthal …