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Displacement of Water by Gas in Propped Fractures: Effect of Fracture Fluid Surface Tension, Viscosity, Proppant Wettability and GravityDownload
Inefficient recovery of fracturing water used in multi-stage hydraulic fracturing operations is a growing industrial concern. Non-recovered water can be trapped in the tight rock matrix and/or in the complex fracture network. Trapped water can block the gas flow and damage the reservoir. This...
This dissertation is composed of three essays that focus on trade’s impacts on inequality. The first essay is an empirical analysis of trade and trade partner inequality, in the context of gravity, covering 128 exporters and 126 importers for years 1982-2000. It reveals import share’s negative...
This research presents the results of two interrelated sets of experiments examining the dynamics of plumes and fountains in two-layer and continuously stratified environments. The first study examines the evolution of an axisymmetric turbulent fountain in a two-layer stratified environment....