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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 32 for “"Reservoir Pressure"”.
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A New Method for Determining Average Reservoir Pressure from a Single Well Buildup Test
… test in a multiple well unsteady state oil reservoir, can give the true average reservoir pressure without prior knowledge of drainage area shapes. To sUbstantiate the accuracy of the model, test runs were made on regularly shaped reservoirs for which the solutions to the pressure function …
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Data quality enhancement in oil reservoir operations : an application of IPMAP
… Product MAP (IPMAP) methodology is used in reservoir pressure and reservoir simulation data, to propose data quality recommendations for the company under study. In particular, a new 4-step methodology for examining data quality for reservoir pressure management systems is proposed: 1. Trace …
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Some geological implications of the flow of clay-water mixtures
… in the repository. As the gas injection pressure is gradually increased the cell walls deform and the clay moves radially outwards. However, at a critical radius, the liquid-clay interface becomes unstable and a series of channels propagate through the clay. When one of the channels …
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Capillary rheometry of soy isolate dough
… yield stresses, melt fracture and sample reservoir pressure losses.
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Application of Polymer and Nanomaterials for Improving Heavy Oil Recovery
… is oil extracted from underground petroleum reservoirs. Utilizing current technology and equipment, only a small portion of oil can be produced and recovered. Steam-assisted gravity drainage (SAGD), used as a common technique to produce heavy oil in Canada (specifically in oil sands …
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Studies on the physical structure, properties and operation of ionic liquid electrosprays in the pure-ion mode
… voltage, where in the limit of negligible reservoir pressure, a conical geometry reminiscent of the Taylor cone is postulated and extends until the electric field near the electrode holding the meniscus reaches an electric pressure approximately twice the surface tension of a sphere with …
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A streamline model application for the waterflood performance of NZ-OF-HRL carbonate reservoir
The NZ-OF-HRL Carbonate reservoir had produced only 3.07 per cent of the oil in place, mainly by internal gas drive, when the pressure had declined from the original pressure of 4,781 psig to 4,009 psig to 8,750 feet. As a result of such rapid change in pressure and due to the fact that energy …
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Determination of the velocity of sound in reservoir fluids using an equation of state
Production of oil and gas from hydrocarbon reservoirs results in reduction in reservoir pressure and changes in the fluid composition and saturations. Enhanced oil recovery methods such as Gas Injection, Water Flooding, CO2 Injection, in-situ Combustion, Water Alternative Gas injection (WAG) and so …
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Integrative Geophysical and Environmental Monitoring of a CO2 Sequestration and Enhanced Coalbed Methane Recovery Test in Central Appalachia
… 20,000 tons of carbon dioxide in a stacked coal reservoir in southwest Virginia. The test involves two phases of CO2 injection operations. Phase I was conducted from July 2, 2015 to April 15, 2016, and injected a total of 10, 601 tons of CO2. After a reservoir soaking period of seven months, …
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A simulation study of steam and steam-propane injection using a novel smart horizontal producer to enhance oil production
… horizontal well system for the Lombardi reservoir in the San Ardo field, California. The novel well system consists of a vertical steam injector and a horizontal producer, whose horizontal section is fully open initially, and after steam breakthrough, only one-third (heel-end) is kept …
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Exploring anisotropy in rock fluid flow and elastic behavior
The difficulty in modeling hydrocarbon reservoirs stems from their inherent anisotropic and heterogeneous nature. Due to their simplicity, isotropic fluid flow and geomechanical models are often used in industry. In comparison to the isotropic models, anisotropic models require more data to be …
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Cold heavy oil production using CO2-EOR technique.
… peak. CO2 retention increases with increasing reservoir pressure, starting with 17.7% retention at 800 psig to 32.8% at 5000 psig, based on peak production analysis. 4. Techno-economic Evaluation – Miscible displacement is asssociated with higher cash-flow stream that extends throughout the …
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Modeling carbon sequestration in transition zone to optimize storage potential
… zones according to CO₂ phases within the initial reservoir pressure and the maximum bottom hole pressure: gas zone and transition zone. Transition zone is a better option because of favorable CO₂ properties. This work investigated the CO₂ storage potential in transition zone using the …
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Geochemical and geomechanical alteration of sandstone reservoir rock and shale caprock under representative geological carbon sequestration conditions
… permanent storage. The dissolution of CO₂ into reservoir brine forms carbonic acid which can react with pH-sensitive minerals, affecting the geomechanical properties of the formation. This dissertation explores the impact of geochemical reactions of low-pH brine on the geomechanical properties …
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A novel approach to upscaling reservoir simulation modelling for polymer processes
… that involves injecting polymer solutions into reservoirs to improve recovery efficiency. Key mechanisms such as mobility control, polymer-rock interaction, gravity segregation, viscous crossflow, and reservoir heterogeneity govern fluid displacement and sweep efficiency. While detailed grid …
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Quantitative monitoring of gas injection, exsolution and dissolution using 4D seismic
… the fact that a gas distribution viewed at the reservoir scale is distinctly different from that observed at the laboratory scale, conclusions from laboratory measurements may not, in fact, be wholly applicable. Indeed, it is found in this study that the main factor controlling the seismic …
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Fracture Modeling and Flow Behavior in Shale Gas Reservoirs Using Discrete Fracture Networks
Fluid flow process in fractured reservoirs is controlled primarily by the connectivity of fractures. The presence of fractures in these reservoirs significantly affects the mechanism of fluid flow. They have led to problems in the reservoir which results in early water breakthroughs, reduced …
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Coal bed methane reservoir simulation studies
… studies for a specific coal bed methane reservoir. First, the theory and reservoir engineering aspects of coal bed methane reservoirs, such as dual porosity concept, permeability characteristics of CBM reservoirs and mechanism of gas storage and gas transportation in CBM reservoir have …
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Injection Impairment by Suspended Solids: Well Models, Filtration Parameters, and Models’ Validation with 3-D Injection Experiments
… produced water is re-injected into formation for reservoir pressure maintenance and disposal. However, suspended particles in produced water cause formation plugging, resulting in reduced permeability and loss of injectivity. Water injection, without solids suspension, at high velocity generates a …
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New Models and Analysis Techniques for Diagnostic Fracture Injection Tests
… for calculating formation permeability and reservoir pressure by analyzing the rebound pressure observed following pump-in/flowback tests. This approach enables the analysis of the post-closure period without the need for conventional injection tests, providing a significant time advantage. …
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