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Showing 1 to 15 of 15 for “"Shale rocks"”.
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Mechanisms of Interaction Between Hydraulic and Natural Fractures in Shale Rocks
… 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 applications, …
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Applying Solid-state NMR Methods to the Study of Organic Shale Rocks
Over the past twenty years, organic-rich shales have emerged as valuable systems for potential oil and gas production. Shale reservoirs are usually low in porosity, ultralow in permeability, and contain hydrogen-rich organic materials, making traditional low-field 1H NMR relaxation methods …
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Methane Storage and Adsorption Characteristics in Nanoporous Gas Shale
Natural shale is mainly characterized by various mineral compositions and multi-scale pore sizes, leading to complex adsorbate-adsorbent interactions, also named the energetic heterogeneity of shale rocks. In this study, a multi-site Langmuir model was proposed to address the energetic …
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Molecular Dynamics Study of Nano-confinement Effect on Hydrocarbons Fluid Phase Behavior and Composition in Organic Shale
… phase and compositional behavior in organic shale rocks is presented. Chapter 1 reviews and discusses previous works on MD simulations of geological resources. With the knowledge acquired, a fully atomistic squared graphite pore is proposed and applied to study hydrocarbon fluid phase and …
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Statistical nano-chemo-mechanical assessment of shale by wave dispersive spectroscopy and nanoindentation
Shale is a common type of sedimentary rock formed by clay particles and silt inclusions, and, in some cases, organic matter. Typically, shale formations serve as geological caps for hydrocarbon reservoirs. More recently, various shale formations have been identified as prolific sources of oil and …
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CO2 Minimum Miscibility Pressure and Recovery Mechanisms in Heterogeneous Low Permeability Reservoirs
… of unconventional oil and gas resources, such as shale gas and tight oil, has grown quickly in 21th century and contributed to the North America oil and gas production. Although the new enhancing oil recover (EOR) technologies and strong demand spike the production of unconventional resources, …
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Nonequilibrium Phenomena in Multiphase Flow, Transport, and Phase Change in Porous Media: Pore-Level Physics, Network Modeling, and Upscaling
… including vadose zone contaminant transport and shale oil and gas production. Understanding these complex physical processes requires quantitative modeling approaches across scales---from pore-scale (e.g., nanometer to millimeter), to representative-elementary-volume (REV)-scale (e.g., centimeter …
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Multi-scale Real Gas Transport in Shale Matrix
As one of the clean energy resources, shale gas significantly reduces greenhouse gas emissions. The description of the gas transport behavior in shale rocks is one of the numerous challenges for further studies on economically developing shale gas reservoirs. In this work, real gas transport in the …
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Linear elastic fracture mechanics in anisotropic solids : application to fluid-driven crack propagation
… try to increase the permeability of gas shale rocks by fracturing it. In this context, we introduce some elements of linear elastic fracture mechanics in anisotropic solids. Notably, a special attention is paid to transverse isotropy, often used to model rocks but also some piezoelectric …
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Water-based drilling fluids for high temperature and dispersible shale formation applications
… and prevent problems associated with reactive shale. Even though water-based fluid systems are environmentally-friendly, their instabilities when exposed to high temperatures remain a big challenge. Biopolymers are commonly used in water-based muds to provide viscosity but degrade at high …
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Characterization of tight and shale unconventional gas reservoirs using low field NMR
… petroleum resources, especially tight and shale reserves, constitute an increasing frontier of reserves additions as conventional production declines. In these sources, reservoir characteristics have significant value in reserve estimation and flow modelling. These characteristics are …
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Geological Effects and Petrophysical Flow Unit Model for the Middle Bakken Member, South-East Saskatchewan
… Member layered between two black organic rich shale members. The Sandstone Member represents the major potential reservoir while the black carbonaceous shale acts as the source and the cap rock of the Bakken petroleum system. These shale rocks have also generated an enormous volume of oil …
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Caprock integrity evaluation for geosequestration of CO2 in depleted petroleum reservoirs.
… and sandstone formations, and their migration to shale caprock. Mineralogical brittleness models were derived from existing models, and one of the models that accounts for the relative level of brittleness of minerals was applied to evaluate the mineralogical brittleness index of the rocks. In …
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Dealing with plenty: Brazil in the era of surplus oil
… in unconventional sources, such as tar sands, shale rocks, and offshore oil. This latter source is of particular interest to this study. In 2007, the Brazilian government announced the discovery of huge reserves offshore, reserves with the potential to multiply the country’s oil assets. Brazil …
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Investigation of Nanopore Confinement Effects on Convective and Diffusive Multicomponent Multiphase Fluid Transport in Shale using In-House Simulation Models
… permeability are among the characteristics of shale rocks. In tight shale reservoirs, the nano-confinement effects that include large gas-oil capillary pressure and critical property shifts could alter the phase behaviors, thereby affecting the oil or gas production. In this research, two …