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Showing 1 to 20 of 48 for “"Kerogen."”.
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Kerogen variation in a Devonian half graben system
… main location to have experienced reduction in kerogen quality (TOC, H/C and spore numbers) because of turbidite deposition.<br/><br/>The preserved organic matter is predominantly composed of amorphous organic matter, making the main kerogen type Type I. About 40% of each Rousay Flagstone …
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ELASTIC, MICROSTRUCTURAL AND GEOCHEMICAL CHARACTERIZATION OF KEROGEN MATURITY FOR SHALES
This dissertation focuses on how the kerogen content and its maturity affect the seismic properties for organic-rich shale reservoirs. The dissertation links geochemistry, seismic and petrophysics. The experimental part of the dissertation involves rock-eval pyrolysis, TOC estimation, and anhydrous …
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Organic matter structural changes during catagenesis : implications of kerogen chemical structure on petroleum yield and composition.
… maximum oil yield generation from parent kerogen. Finally, this work demonstrated that both organic matter composition as well as the surrounding chemical environment, for example minerals, are important controls in catagenesis.
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Effect of thermal maturity on nanomechanical properties and porosity in organic rich shales (a Bakken shale case study)
… from well logs and seismic surveys. As kerogen matures and decomposes to lighter hydrocarbons, its physical and chemical properties change. Kerogen decomposition and consequent shrinkage also change the load bearing state of the minerals and organic matter and affect pore system since …
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Geochemical study on reservoir and source rock asphaltenes and their significance for hydrocarbon generation
… Muttergesteinsasphaltene und Muttergesteinskerogene wurden mittels verschiedener analytischer Pyrolysetechniken bezüglich ihres Kohlenwasserstoff-genesepotentials untersucht. Besonderes Interesse wurde hierbei der kompositionellen Zusammensetzung der generierten Kohlenwasserstoffe in …
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Paleogeography and Paleoenvironments of the Lower Unit, Fossil Butte Member, Eocene Green River Formation, Southwestern Wyoming
… The open lacustrine facies is characterized by kerogen rich to kerogen poor finely laminated micrites , that consist mainly of calcite and very little dolomite. These carbonates contain well preserved fossil fish, ostracodes, molluscs and the kerogen that was produced mainly by algae. These …
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Marine sedimentary organic matter : delineation of marine and terrestrial sources through radiocarbon dating; and the role of organic sulfur in early petroleum generation
… production of petroleum-related products during kerogen maturation. Chapter 3, on the other hand, utilizes a recently developed technique of isolating and AMS-14C dating individual compounds from complex sedimentary organic mixtures. The samples used in each investigation came from all over the …
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Marine sedimentary organic matter: delineation of marine and terrestrial sources through radiocarbon dating; and the role of organic sulfur in early petroleum generation
… production of petroleum-related products during kerogen maturation. Chapter 3, on the other hand, utilizes a recently developed technique of isolating and AMS-14C dating individual compounds from complex sedimentary organic mixtures. The samples used in each investigation came from all over the …
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Nuclear renewable oil shale hybrid energy systems : configuration, performance, and development pathways
… primary energy used to produce shale oil from kerogen deposits and also provide flexible, dispatchable electricity to the grid. Kerogen is solid organic matter trapped in sedimentary shale, and the formations of kerogen oil shale in the western United States are the largest and densest …
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Applying Solid-state NMR Methods to the Study of Organic Shale Rocks
… from producible methane to the solid kerogen (the biopolymer precursor to petroleum). These considerations imply a “paradigm shift” in petrophysical NMR, currently based on the knowledge that (i) NMR is lithology independent (responds only to the fluids, not the matrix) and (ii) the …
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The analysis of organic matter in oil-shales
… by acid demineralisation, separated into kerogens and bitumens by solvent extraction and then characterised in some detail by chromatographic, spectroscopic and degradative techniques. Kerogens cannot be characterised as easily as bitumens because of their insolubility, and hence before …
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The Contribution of Different Carbonaceous Material Fractions to the Sorption of Hydrophobic Organic Contaminants to Subsurface Sediments
… organic matters dominate total carbon mass, with kerogen/humin the next most abundant CMs. Isotherm results indicate that condensed form CMs, most likely kerogen and humin, control the sorption of TCE. Even though the KCM values for particulate carbonaceous materials (PCM) are higher than those of …
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Analysis of petroleum source rocks of the Bakken Formation (Devonian and Mississippian) in North Dakota
… pyrolysis, vitrinite reflectance, and visual kerogen typing. Organic carbon measurements revealed the Bakken shales to be very organic-rich (average of 11.33 weight percent of organic carbon) and visual kerogen typing revealed this organic matter to be predominantly an amorphous type which is …
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Palynology and Paleoecology of the Fossil Butte Member of the Eocene Green River Formation in Fossil Basin, Lincoln County, Wyoming
… Lake and the surrounding vegetation.</p> <p>Kerogen analysis of rocks from the Fossil Butte Member showed no correlation between the kerogen type and either the lithology or preservation of palynomorphs.</p>
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Entwicklung einer neuen Präparationsmethode und Untersuchung verkieselter Mikrofossilien des Präkambriums mit Hilfe der Rasterkraft- und Elektronenmikroskopie
… and chemical composition of the quartz and the kerogen components of the fossil cell walls. The data is supplemented by raman spectra of the same single fossils, providing information on the molecular constitution of the kerogen material, as well as by quantitative electron microprobe data on …
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Applied Geochemistry, Geochronology and Biostratigraphy: Case Studies from the 38th Parallel Structures in Missouri and Orange Basin, Offshore Western South Africa
… characterized primarily by gas-prone type III kerogen and some oil-prone type II kerogen"--Abstract, p. iv</p>
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A PETROLEUM SYSTEM STUDY OF THE CRATONIC WILLISTON BASIN IN NORTH DAKOTA, U.S.A.: THE ROLE OF THE LARAMIDE OROGENY
… content between 0.59 and 17.63%, and are type II kerogen, except for the Tyler Formation which is type III kerogen. This gives these formations a good quality status as a source rock, and potentially oil-and-gas prone source. Geochemical data (vitrinite reflectance %Ro, in this case) were used for …
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Creep properties of source rocks using indentation : the role of organic matter on texture and creep rates
… is logarithmic and driven by the porous kerogen phase. The organic matter plays a pivotal role as it affects energy dissipation in the composite with deformations. This conclusion is reached by inspection of (nano- and micro-) indentation creep results, analysis of secondary consolidation …
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Applied palynology: Multidisciplinary case studies from Egypt, Gulf of Mexico and USA
… abundant terrestrial constituents indicative of kerogen type III (gas-prone material), while the upper unit was made up of marine components indicative of type II kerogen (oil-prone material). Palynomorphs, palynofacies, and geochemical analyses of the Gray Fossil Site, eastern Tennessee …
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Assessment of the petroleum generation potential of the Neal Shale in the Black Warrior Basin, Alabama
… the formation developed as much as 4.82% kerogen porosity. However, kinetic porosity models like the one used in this study may not be valid because they do not account for the chemical composition of the organic matter (i.e., kerogen vs. bitumen). Basin modeling indicates that the Neal …
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