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 21 for “"Pressure Transient"”.
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Pressure-transient response of a transverse finite-conductivity fracture intercepted by a horizontal well
Includes bibliographical references (pages 125-129).
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Numerical Simulation of pressure Transient Analysis in Tight Formation and Field Data Categorization and Typical Well Production Data Analysis
… supply in North America. Production and pressure transient analysis of tight oil reservoirs is one of the most difficult problems facing a reservoir researcher because of the extreme complexity inherent in tight formations, such as producing from multiple layers with effective …
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Analytical Solutions for Hydraulic Fracture Diagnosis
… main developments, theories and applications of pressure transient testing as a tool for hydraulic fracture diagnosis. Pressure transient analysis is an inverse process and therefore subject to uncertainties and uniqueness problems. Although the analysis of pressure data is nowadays fully …
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Analytical Solutions for Hydraulic Fracture Diagnosis
… main developments, theories and applications of pressure transient testing as a tool for hydraulic fracture diagnosis. Pressure transient analysis is an inverse process and therefore subject to uncertainties and uniqueness problems. Although the analysis of pressure data is nowadays fully …
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A signal oriented stream processing system for pipeline monitoring
… (API). We use SignalDB to express acoustic and pressure transient methods for water pipeline monitoring as query plans consisting of signal processing operators.
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Experimental study of rapid pressure transients in a two-fluid, two-phase system and comparison to RELAP5
… development of accurate closure relations. Fast transients can be particularly difficult to model, so experimental datasets are important for developing closure relations that apply to these scenarios. Previously, experiments like the Edwards pipe experiment (ISL, 2010) and the pipe experiment by …
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Transient flow of a slurry
The effect of solid particles on pressure transients produced by flow changes was studied. Water slurries of finely ground limestone were used at concentrations of 10%, 20%, 30%, and 35% by volume in experimental runs in a 2" pipeline. The experimental results were compared to computer simulations …
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Predicting permeability and flow capacity distribution with back-propagation artificial neural networks
… of the reservoir and lack of sufficient cores or pressure transient tests, allowing to define reservoir characterization within an acceptable accuracy while maintaining costs low. The methodology used in this study takes advantage of this technology to accomplish such a task.;An ANN was developed …
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Predicting a detailed permeability profile from minipermeameter measurements and well log data
… permeability in one of two ways. These are pressure transient testing and core analysis. Both methods are expensive in their own ways. This research focuses on a way to minimize or limit the need for both of these testing procedures.;The purpose of this research was to utilize well log data, …
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A Combined In Vivo and In Vitro Approach to the Study of Endotoxemia in Swine
… sustained increases in mean pulmonary artery pressure, pulmonary vascular resistance, pulmonary arterial wedge pressure, heart rate, hematocrit, and the arterial partial pressure of carbon dioxide. Transient increases were also observed in central venous pressure and airway pressure. Transient …
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Effects of a Slow Gas-Phase Reaction on the L(*) Instability in Solid-Propellant Rockets
… and strong dependence on the chamber pressure and pressure transient. For this purpose, the asymptotic analysis exploiting the large activation energy of the explosion reaction is performed. The linear-stability results show that a system becomes more unstable due to the nonvanishing …
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Performance Evaluation of Wells With Single and Multiple Fractures in Tight Formations
… hand, numerous studies have been conducted on pressure transient analysis with analytical and/or numerical methods, though some underlying mechanisms have not been well understood since fluid flow in such tight formations can be completely dependent on the fracture network while the matrix only …
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Two Issues in Premise Plumbing: Contamination Intrusion at Service Line and Choosing Alternative Plumbing Material
… valves and tanks) is susceptible to hydraulic transients resulting in high and low pressure waves alternatively passing through the network. While both low and high pressure events structurally tax the already weak system, there is copious evidence indicating intrusion of contaminants into the …
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Application of Data Analytics to Prediction of Initial Production in Tight Oil Reservoir
… history, lab and field measurements (PVT, pressure transient test, production and pressure data). Missing pressure data is handled by pressure versus time correlation corresponding to the drive mechanisms in the reservoir. Thirty well samples with 39 possibly correlated parameters have been …
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Scanning Methods as Monitoring, Verification, and Accounting tools for CO₂ Sequestration in Unconventional Gas Reservoirs
… mass spectrometer fluid transport analysis, pressure transient build tests, liquid level detection, and desorption analysis coupled with cleat image analysis. Analyses of coals performed by both environmental scanning electron microscope (ESEM) and micro CT demonstrate that distributions of …
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Coupled geomechanical reservoir simulation
… and the fluid flow simulator Eclipse for pore pressure determination, this work looks at pore pressure - stress coupling which has significant implications for failure mechanism, fault reactivation and caprock integrity. The present work also suggests the use of Pressure Transient Analysis …
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A study of column separation accompanying pressure transients in an aviation kerosene pipeline
… the partial differential equations governing pressure transient propagation. Particular attention was given to obtaining accurate velocity results at the instant the predicted pressure at a section reached vapour pressure. A test rig utilizing L.56 aluminium alloy fuel piping and other …
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Integration of Numerical Simulation and Wireline Formation Testing Measurements for Permeability Interpretation
… been growing interests in using the WFT pumpout transient data to interpret formation permeability and productivity with the conventional pressure transient analysis (PTA). Such an interpretation is based on the assumption of perforating the entire pay zone interval, though it is suspected not to …
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Pressure- and rate-transient model for interfering horizontal wells
… reservoirs. This model is designed for pressure- and rate-transient analysis (PTA/RTA), crucial for determining reservoir properties and predicting well performance. Unlike traditional PTA/RTA diagnostics that assume standalone wells, this model accounts for spatial and temporal …
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