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.
Results
Showing 1 to 14 of 14 for “"lateral variability"”.
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Depositional history of the Black Mountain conglomerate, Mohave County, Arizona: Sedimentary response to Miocene extension
… volcanic rocks and correlated to determine the lateral variability within the basin. Data collected from these sections included changes in bedding orientation, clast compositions, paleocurrent directions, and provenance. (Abstract shortened by UMI.).
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3D modeling and characterization of hydraulic fracture efficiency integrated with 4D/9C time-lapse seismic interpretations in the Niobrara Formation, Wattenberg field, Denver Basin
… mechanical issues that affect production from lateral wells, the variability in production performance and reserve recovery along multistage lateral shale wells is controlled by the reservoir heterogeneity and its consequent effect on hydraulic fracture stimulation efficiency. Using identical …
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High-Resolution Correlation of a Time-Bounded Unit of the Pisco Formation, Peru
… and magnetic susceptibility. The vertical and lateral variability in lithology, fossil assemblages, structures, and sequences was examined in detail and used to develop a paleoenvironmental model of the time-bounded sequence. Six distinct facies from the Pisco Formation were defined and used …
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Stratigraphy of Paleocene and Pleistocene Sediments Exposed Along Lake Sakakawea in Eastern Dunn and Western and Central Mercer Counties, North Dakota
… Sentinel Butte Formation was 110 feet. Extreme lateral variability of lithology made detailed correlations exceedingly difficult, even across small distances such as from one bluff to the next. Glacial deposits of the Coleharbor Group are more common in bluff exposures in the eastern part of the …
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Surface Wave Analysis in Laterally Varying Media
… estimation of the S-wave velocity behaviour in laterally varying media. The surface wave method, in fact, can be effectively adopted for different purposes and at different scales, but I focused on the geo-engineering and geotechnical applications of surface wave analysis and also on the …
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Reservoir characterization using seismic inversion data
… facies and vertical trends (and may indicate lateral trends), but cannot specify intrawell stratal geometry. Consistent geomodels can be generated for flow simulation by systematically considering the precision and density of different data. Because seismic inversion, conceptual stacking, and …
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Pore fluid pressure detection within the plate boundary fault interface of the Costa Rica convergent margin using AVO attributes
… into the frontal prism and lower fluid pressure. Lateral variability of overpressure within the decollement shear zone of subduction margins is important in understanding the evolution of frontal prism strain accumulation and seismogenic rupture.
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Modeling the effects of aircraft flight track variability on community noise exposure
… of capturing the noise impacts of flight track variability. This thesis develops a model for this purpose. First, twenty days of radar flight trajectory data from 2015 and 2016 at Boston Logan International Airport (KBOS) is used to quantify the observed distributions of variability in speed, …
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An application of ocean wave-current refraction to the Gulf Stream using SEASAT SAR data
… such as the formation of an eddy or other lateral variability near the current's edge.
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An approach to studying soil-landscape relationships in Virginia
… DCB extractable Fe, and sand contents. Soil variability was examined for the overall study, as well as within toposequences, pedons, and individual horizons. Most of the overall variability was attributed to differences between study sites or between horizons, with minimal amounts due to …
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A mineralogical study of the Harmon lignite bed, Bullion Creek Formation (Paleocene), Bowman County, North Dakota
… in the B seam. This result demonstrates the lateral variability in inorganic content in the Gascoyne lignite. Minerals also varied in vertical distribution. Quartz and clay minerals were more abundant in lithologic layers that were adjacent to clay silt partings, overburden, and underclay. …
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Turbulence in the sea ice impacted Southern Ocean and its implications for primary production and carbon export
… we find that sea ice melt by introducing a lateral freshwater gradient enhances stirring of submesoscale flows (0.1-10 km) and therefore lateral variability in the upper ocean, but simultaneously constrains vertical fluxes between the ocean interior and surface by enhancing stratification. …
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Anatomy of a Carboniferous transgression: upper Tullig Cyclothem, County Clare, Ireland
… in County Clare, which show considerable lateral variation from north to south. One complete section of the transgressive Tullig is exposed at Trusklieve, where the sedimentary infill begins at the top of the fluvio-deltaic sandstone channels of the Tullig Sandstone. At this point, …
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Three-dimensional eolian bounding surface architecture of the Entrada sandstone, Utah: expanding our understanding of reservoir heterogeneity in wet eolian systems
… up and some are quite sinuous in plan-view. Laterally-restricted sabkha facies association deposits observed in the upper-most portion of the Entrada Sandstone suggest that they were associated with closed damp interdune flats located between climbing sinuous transverse bedforms or patches of …