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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 132 for “"organic-rich"”.
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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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Element cycling in organic rich sediments on the Pakistan margin
… with measurements of microbiallymediated organic carbon oxidation reactions were determined at sites above, within, and below the oxygen minimum zone (OMZ) on the Pakistan margin of the Arabian Sea.<br/>Sampling was conducted before and during the late-to-post southwest monsoon, with the …
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THE APPLICATION OF OXIDATIVE HYDROTHERMAL DISSOLUTION (OHD) TO ORGANIC-RICH SHALES
… at Southern Illinois University to convert solid organic material to low-molecular-weight, water-soluble products using small amounts of dissolved oxygen in liquid water at high temperature and pressure. The process is environmentally friendly; it does not involve the use of solvents or catalysts, …
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Poroelastic Effect on Gas Transport and Storage in Organic Rich Shale Reservoir
… and transportation mechanism in multi-scale organic rich shale gas reservoirs. Over last decades shale gas research widen significantly, however, the behavior and properties of shale formation still need more investigation. Most of our knowledge regarding poroelsctic behavior of shale matrix …
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RE – OS AND PGE GEOCHEMISTRY OF ORGANIC-RICH SEDIMENTARY ROCKS AND PETROLEUM
… fingerprint data for UK Atlantic margin oils. organic and δ13C geochemical data demonstrate that the oil is sourced from Upper Jurassic marine shales and the Re–Os data yields an age of 68 ± 13 Ma. Comparison of this date with published basin histories and Ar-Ar geochronology demonstrate that …
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Quantity and isotopic composition of reduced sulfur in Cretaceous organic-rich shales
Over 200 samples of mid-Cretaceous organic-rich sediment were examined to determine abundance and isotopic composition of reduced sulfur. Mid-Cretaceous pelagic sediments, particularly those of the North and South Atlantic, are characterized by high organic carbon contents relative to the modern …
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Characterization of anisotropy in organic-rich shales: shear and tensile failure, wave velocity, matrix and fracture permeability
Lamination and fractures are common features in organic-rich shales. The objective of this thesis is to determine the impact of lamination and fractures on elastic properties, shear and tensile failures, and the permeability of organic-rich shales. The elastic properties of rocks determine the …
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Effect of thermal maturity on nanomechanical properties and porosity in organic rich shales (a Bakken shale case study)
… the load bearing state of the minerals and organic matter and affect pore system since early stages of maturation. Generating representative rock models to describe the behavior of organic-rich rocks is challenging due to complex textural properties of these rocks and the uncertainties in …
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Sequence Stratigraphy and Source Rock Characterization of Organic-Rich Shales Within the Jurassic Smackover Formation, Conecuh Embayment, Alabama, U.S.A.
… layers containing abundant terrestrially derived organic matter within the Smackover Formation. The shale layers provide interesting insight into the sequence stratigraphy and paleoclimate of the Conecuh Embayment, and the source of the hydrocarbons accumulated there. The two shale layers reach a …
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GEOCHEMISTRY OF THERMALLY ALTERED COALS AND ORGANIC-RICH SHALES: THE IMPACT OF RAPID HEATING ON PHYSICAL AND CHEMICAL PROPERTIES OF ORGANIC MATTER
… and petrographic properties of sedimentary organic matter (such as coals and organic-rich clays or shales) including vitrinite reflectance, maceral petrographic composition, mineralogy, stable isotope composition, trace element composition, and bulk geochemistry. Igneous intrusions into …
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Geo-chemo-mechanical modeling of sedimentary rocks: application to unconventional reservoirs and geological CO2 sequestration
… geopolitics. The recovery of oil and gas from organic-rich shales, geological sequestration of CO2 in sandstone host rocks and storage of nuclear waste in impermeable rocks are among the most challenging problems worldwide. Technical challenges and environmental concerns slow the growth of …
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A magmatic trigger for the Paleocene-Eocene Thermal Maximum?
… from methane hydrates, terrestrial or marine organic matter, as indicated by a pronounced excursion to light carbon isotope values across the PETM. I test the hypothesis that the PETM warming and isotope excursion were caused by the intrusion of a magmatic sill complex into organic-rich …
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A magmatic trigger for the Paleocene-Eocene thermal maximum?
… from methane hydrates, terrestrial or marine organic matter, as indicated by a pronounced excursion to light carbon isotope values across the PETM. I test the hypothesis that the PETM warming and isotope excursion were caused by the intrusion of a magmatic sill complex into organic-rich …
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Petrophysical lithofacies modeling of the upper Pennsylvanian Cline Shale in the Midland Basin, West Texas.
… upper Pennsylvanian interval of interstratified organic-rich shale, inorganic shale, and allochthonous carbonate beds, and is currently an active unconventional exploration target within the Midland Basin of west Texas. This study compares core-observed depositional facies to petrophysical well …
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Nanoscale examinations on the sequestration of Cu by organic material in contaminated surface soils in Timmins, Ontario
… This study investigates the fate of Copper in organic-rich surficial soil layers (0-5 cm) contaminated by mining related activity at the Timmins Kidd Creek metallurgical site, Canada. The sequestration and mobilization of Cu by organic material (OM) in the soil layer is investigated using …
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Foraminiferal and stable isotope investigation of the Cenomanian-Turonian extinction and oceanic anoxic event
… is the oceanic anoxic event (OAE 2) and the organic-rich black shales deposited during this interval. Associated with these organic-rich sediments is a positive carbon isotope anomaly. This excursion has a distinct profile and has hence been used for global correlation. There was also a …
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The Neoproterozoic São Francisco Basin, central Brazil: tectonic evolution, paleoclimate, and mineral systems
… deposits (ca. 717-660 Ma). Copious post-glacial organic matter and pyrite-rich siltstones formed during the subsequent passive margin stage. The overlying Bambuí Group is a Cryogenian-Ediacaran mixed biochemical-siliciclastic succession (ca. 650-550 Ma) composed of six stratigraphic sequences. …
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Petrology, geochemistry, diagenesis and depositional environment of the Upper Devonian - Lower Carboniferous Exshaw Formation, northwestern Alberta.
… Exshaw Formation is a thin, laterally extensive organic-rich petroleum source rock. It is one of Canada's most important petroleum source rocks and is a major contributor to the Lower Cretaceous Mannville heavy oil accumulations in the Western Canada Sedimentary Basin. The development of …
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Mapping and Reconstructing the Paleotsunami Record in Queule, South-Central Chile
… as tsunami deposits are interbedded with dark, organic-rich, silt deposits along a tidal channel landward of a sand spit capped by eolian sand dunes. The uppermost sand layer is attributed to the tsunami from the Mw 9.5 1960 earthquake. The sand layer is widespread, tabular, oxidized, thins …
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Integrated approach to solving reservoir problems and evaluations using Sequence Stratigraphy, Geological Structures and Diagenesis in Orange Basin, South Africa"
… the provenance, type and thermal maturity of organic matter present in sediments of the Orange Basin. The results revealed a complex diagenetic history of sandstones in this basin, which includes compaction, cementation/micritization, dissolution, silicification/overgrowth of quartz, and …
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