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 11 of 11 for “"Subsurface heterogeneity"”.
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Characterization of Subsurface Heterogeneity Using Transient Hydraulic and Tracer Tomography
… cost-effective technique for characterizing the heterogeneity of hydraulic parameters in the subsurface. In this study we developed an efficient sequential successive linear estimator (SSLE) for interpreting head data from transient hydraulic tomography to estimate three dimensional hydraulic …
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BUILDING A BETTER TRAINING IMAGE WITH DIGITAL OUTCROP MODELS: THESE GO TO ELEVEN
Current standard geostatistical approaches to subsurface heterogeneity studies may not capture realistic facies geometries and fluid flow paths. Multiple-point statistics (MPS) has shown promise in portraying complex geometries realistically; however, realizations are limited by the reliability of …
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Classical and Quantum Computational Methods for Predicting Fluid Transport in Fracture Networks
… confidence in estimates while accounting for subsurface heterogeneity. These innovations are designed to replace costly solvers with parsimonious emulators. In combination with multi-fidelity and quantum techniques, they make physics-informed modeling computationally feasible. One of our …
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Digital terrain analysis to predict soil spatial patterns at the Hubbard Brook Experimental Forest
… is related to topographic and surface/subsurface heterogeneity resulting in distinct hydrologic flowpaths leading to variation of soil morphological expression. Although the two LiDAR datasets differed with respect to data collection methods and nominal post-spacing of ground returns, …
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Deep Neural Networks for Rate of Penetration Prediction: A Subsurface-Centric Approach Using Well Logs in the Volve Oil Field
… yet conventional models often neglect subsurface heterogeneity and rely heavily on operational parameters. This thesis introduces a subsurface-centric deep learning framework for ROP prediction based solely on well log data, addressing geological complexity through an iterative, …
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Deep Neural Networks for Rate of Penetration Prediction: A Subsurface-Centric Approach Using Well Logs in the Volve Oil Field
… yet conventional models often neglect subsurface heterogeneity and rely heavily on operational parameters. This thesis introduces a subsurface-centric deep learning framework for ROP prediction based solely on well log data, addressing geological complexity through an iterative, …
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Understanding scale impacts of heterogeneity and topography on water and energy fluxes in mountain meadows using a fully-integrated hydrologic model
… is becoming increasingly important. Land cover, subsurface, and topographic heterogeneity have all been shown to control infiltration rates, subsurface flow, soil moisture, and energy flux distributions. Many hydrologic models operate at scales which do not capture the variability of these …
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LAKEMAGING: GEOPHYSICAL DATA INTEGRATION FOR GROUNDWATER MODELLING
… observations that do not adequately describe subsurface heterogeneity. In this context, geophysical methods, and especially electrical and electromagnetic techniques, provide spatially continuous information that can improve conceptualization of aquifer systems. However, their integration into …
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MOUNTAINHYDRO: INTEGRATING GEOLOGY, GEOPHYSICS AND HYDROGEOLOGY IN A MULTIDISCIPLINARY APPROACH
… surveys play a key role in capturing the subsurface heterogeneity and identifying preferential flow paths within the rock volumes. The integration of the geological model into the geophysical inversion through an iterative process provides insights into the hydrogeological characteristics …
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Assessment Of Electrical Resistivity Method To Map Groundwater Seepage Zones In Heterogeneous Sediments At Mirror Lake, NH
… to improve our understanding of how small-scale heterogeneity controls seepage. We collected underwater electrical resistivity data along the southwest shore of Mirror Lake, NH, as part of a multi-year assessment of the utility of geophysics for mapping groundwater seepage beneath lakes. We found …
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Modeling of Foam Flow in Porous Media for Subsurface Environmental Remediation
… geological formations and shallow subsurface in-situ NAPL (non-aqueous phase liquid) environmental remediation in contaminated soils and aquifers. In those applications, foams are known to reduce the mobility of gas phase by increasing effective gas viscosity and improve sweep …