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 10 of 10 for “"Rock fabric"”.
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Quantification of rock fabric through multi-scale image data analysis for enhanced rock typing and formation evaluation
Spatial variation of rock fabric (i.e., spatial distribution of minerals, pores, and saturating fluids) affects the estimation of petrophysical, mechanical, and compositional properties of sedimentary geological formations. Quantification of rock fabric and its integration with rock classification …
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Oil Potential of Middle Cretaceous Tight Carbonate in Mexico
… capillary pressure, pore throat apertures and rock fabric number. Rock fabric evaluation focuses on determining grainstone, packstone and wackestone-mudstone rocks using a rock fabric number. Pattern recognition in Pickett plots is used as part of the analysis. Well A1 was production-tested. …
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Using the Finite Discrete Element Method (FDEM) to Correlate Simulated Microfractures to Acoustic Emissions in Brittle Anisotropic Rock
The study of rock mechanics is a rapidly evolving field of research due to the increasing demand for underground infrastructure in deeper and more complex rock masses that includes structure such as joints and rock fabric. Among the increased demand is the long-term storage of radioactive waste …
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Metamorphic and melt-migration history of midcrustal migmatitic gneisses from Nupskapa, The Maud Belt, Antarctica
… in the upper crust where brittle fracturing of rocks can occur. The details of how and when melt migration changes from a pervasive to focused style are poorly understood, particularly the temperature, pressure and deformation conditions which allow the transition to occur. The Nupskapa nunatak, …
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Stress- and direction-dependent analysis of elastic and petrophysical properties, and texture in unconventional rocks
… due to its significance in unconventional rock characterization and production. Anisotropy can be characterized as (a) intrinsic anisotropy, such as thin laminations, clay layers, and organic matter, and (b) extrinsic anisotropy, such as induced microfractures due to coring. The spatial …
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Hydraulic Fracturing Behavior of Opalinus Shale: A Framework, Experimentation & Insights
… framework was set to investigate the complex rock material and hydraulic fracture process. First, the mineralogy and micro-structure were assessed through a variety of techniques, including X-Ray diffraction, scanning electron microscopy with energy-dispersive X-Ray spectroscopy and focused …
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Methane adsorption into sandstones and its role in gas recovery from depleted reservoirs
… a manometric adsorption apparatus was self-fabricated specifically for this research to quantify the methane adsorption capacity of sandstone cores samples. The experiments were conducted using dry sandstone core samples. Methane (CH4) adsorption capacity of sandstones was investigated using …
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Dyke-induced earthquakes during the 2014-15 Bárðarbunga-Holuhraun rifting event, Iceland
… that they are controlled by the underlying host rock fabric. Long-period earthquakes and tremor were systematically detected and located during the dyke propagation phase and the first week of the eruption. Clusters of highly similar, repetitive LPs were identified, with a peak frequency of ∼ 1 …
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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)
… that occurred within both the buried basement rocks and similar exhumed units exposed in the uplifted rift shoulders. The rock alteration history is established largely on the basis of combined X-ray diffraction, X-ray textural goniometry, electron microscopy (SEM, HRTEM) and isotopic (K-Ar) …
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The initiation and evolution of ignimbrite faults, Gran Canaria, Spain
… which the petrophysical properties of the host rock are the primary control on fault architecture. Faults initiate on existing sub-parallel joints and grow by the incorporation of material from joint surfaces and joint bound slabs. The growth of the fault depends on the joint spacing and the …