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 20 of 71 for “"Water Saturation"”.
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Measurement of water saturation during two phase flow through a porous medium by electrical methods
Thesis: B.S., Massachusetts Institute of Technology, Department of Chemical Engineering, 1958
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Wettability assessment using resistivity and NMR measurements
… wettability indices. Given reliable estimates of water saturation and the pore-geometry-related model parameters, this resistivity model provides wettability assessment from resistivity measurements with minimal calibration efforts. Moreover, a new method for interpretation of 2D NMR maps is …
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Influence of grain size of a porous medium on the movement of diesel fuel due to water table fluctuations
… of grain size of a porous medium and residual water saturation on the movement of diesel fuel. Three different grades of sand (#12, #20, and #30 grades with mean grain diameters of 0.178cm, 0.08cm, and 0.056cm respectively) were used in the experiments. A water table was simulated and the sand …
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Freeze-Thaw Durability of Pervious Concrete
… cycling under different soil clogging and water saturation conditions. The laboratory research associated with this project involved three primary measures of pervious concrete performance, including freeze-thaw durability, compressive strength, and permeability. Testing associated with …
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Simulation Study of Warm VAPEX Process Using Water-soluble Solvent
… Thermal dynamic properties of a bitumen-DME-water system were modelled and validated with experimental measurements. The performance of hot DME VAPEX is compared with a SAGD process in terms of an oil rate, cumulative oil production and energy input. Simulation results indicate that the oil …
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4D seismic analysis: discriminating between saturation and pressure changes form a data acquired Offshore Equatorial Guinea
… risk. This is done by interpreting changes in water saturation and changes in effective pressure in the reservoir, which allows production to be maximized safely. In this project, I determined saturation and pressure changes in an oil field offshore Equatorial Guinea. I used Landrø's technique …
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Physical and chemical aspects of fluid evolution in hydrothermal ore systems
… necessary. Melts in shallow systems with initial water concentrations of at least 2.5 wt.% water and Cl/H₂O as low as 0.03 can produce economic deposits with volumes of 50 km³ or less, regardless of copper compatibility. In deeper systems deposits may be produced from melts of less than 30 km³ if …
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Adhesion Fundamentals in Spotted Gum (Corymbia citriodora)
… and often generated anomalous results. Heating water-saturated wood to mild surface temperatures (105 deg C, directly after evaporative cooling) severely deactivated spotted gum but not Gympie messmate. This suggests conventional kiln drying appears unsuitable for spotted gum while amenable for …
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Fluid flow and slope stability model
… a slope with time resulting from changes in the water saturation. A two-phase fluid flow model was incorporated to calculate the saturation and saturation changes in fractured and nonfractured soil and rock. A slope stability model was created to calculate the factor of safety. The fluid flow …
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Basic relation for the recovery of oil by steam application to an oil and hot water system
… steam flood is the displacement of oil by hot water after the steam has condensed. An example of this hot water displacement was solved numerically for typical reservoir conditions. Heat losses to the overlying and underlying formations were included, and certain simplifying assumptions were …
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Stratigraphy, sedimentology and petrophysics of transgressive tight gas sandstones, Almond Formation, Wyoming
… the prediction of rock-quality-dependent water saturation (SW) models with depth. Primary drainage and imbibition saturation-height models (SHM) were developed from special core analysis and integrated with porosity and permeability logs to verify the SW state of reservoirs. Assuming that …
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Multi-scale Investigations of Geological Carbon Sequestration in Deep Saline Aquifers
… field. Relative permeability, capillary pressure-water saturation relation are important continuum-scale properties controlling multiphase flow in porous media. This work employed lattice Boltzmann method to simulate the displacement process. We found that pore-scale surface wettability …
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Two-Phase Flow at the Pore-Scale Using the Volume of Fluid Method
… are performed in order to establish initial water saturation. Then, secondary imbibition simulations are performed mimicking viscosity ratios found in thermal recovery processes involving hot water and heavy oil. Through these simulations, pore-scale events such as Haines jumps, oil ganglia …
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Time-Lapse Depletion Modeling Sensitivity Study: Gas-Filled Gulf of Mexico Reservoir
… during production, highlighting compaction and water movement. Time-lapse modeling, using a stress-dependent rock physics model, helps determine the need and frequency of expensive repeat seismic acquisition. We simulate a Gulf of Mexico gas reservoir time-lapse response for depletion and water …
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Finite Element Analysis Of A Test Specimen For Strength Of A Co-polymer Layer At A Bone-implant Interface
… co-polymer is a function of its composition and water saturation. The factors affecting the strength of the bone-implant interface are many. Implant interfacial fracture can lead to decreased stability. Fatigue life is a very important process in failure. The results obtained from static and …
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Seismic waveform tomography with multicomponent data at a groundwater contamination site
… data are interpreted in terms of lithology and water saturation, which are better constrained by the availability of both P- and S-wave velocity.
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Fates of spilt oil and factors affecting the bio-degradation of oil: a review
… present. The interfacial area of oil and water is also an important factor which varies significantly with variation in water saturation. The degree of bio-degradation varies between saturates, aromatics, resins and asphaltenes.
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Application of dynamic optimization methods for foam floods in stratified reservoirs
… very technically challenging, even when applying waterflood, gasflood, or WAG (water-alternating gas) processes. To date, relatively few field or pilot applications of foam flooding have been conducted due to an incomplete understanding of how foam will behave in the field. The reservoir of …
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Modeling of Foam Flow in Porous Media for Subsurface Environmental Remediation
… foam strength and stability at different phase saturations; and Part 2, extending the model to investigate the mechanisms of surfactant/foam displacement in multi-layer systems. Part 1 investigates six scenarios such as different levels of foam strength (i.e., gas mobility reduction factors), …
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