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 9 of 9 for “"Geothermal wells"”.
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The vertical flow centrifugal gas-liquid separator and its application to the removal of gases from geothermal wells
… separator to the removal of gases from geothermal wells has been investigated. A method of estimating the onset of two-phase flow in a geothermal well and hence the location of a separator has been presented. Methods for calculating the pressure drops between the separator and the …
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Feasibility of supercritical CO2 coaxial heat exchanger geothermal well conversion with ECO2G technology
The feasibility of converting non-producing geothermal wells to closed loop supercritical CO2 coaxial heat exchanger using ECO2G technology was analyzed for two heat exchanger scenarios. The first scenario, Case A, utilizes the existing production casing as the heat exchanger and plugs the well at …
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The Green's function for the diffusion coefficient
… the fracture network for applications in geothermal energy. This has the potential to make geothermal wells more economical to make, more efficient to operate, and longer lived. Previous work has shown the diffusion coefficient can be extracted from synthetic datasets in both one dimension …
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Decision analysis for geothermal energy
… key impediments to the development of enhanced geothermal systems is a deficiency in the tools available to project planners and developers. Weak tool sets make it difficult to accurately estimate the cost and schedule requirements of a proposed geothermal plant, and thus make it more difficult …
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Efficient Modeling, Optimization, and LLM-Assisted Decision Support for Geothermal Well Arrays
Geothermal well arrays, which organize multiple geothermal wells into carefully planned geometric configurations, provide an opportunity to enhance energy production capacity and increase fault tolerance of geothermal systems. Closed-loop geothermal systems (CLGS), a type of geothermal well design, …
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Body and surface wave ambient noise seismic interferometry across the Salton Sea Geothermal Field, California
… a controlled-source survey across the Salton Sea Geothermal Field in southern California. The non-uniform nature of the noise sources violated a primary assumption of the method and generated artifacts in the data. The artifacts generated by the high-energy impulsive sources (e.g. earthquakes, …
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Improving Deep Exploration with Cost-Effective Geophysical Methods
… Landing survey aimed to identify potential geothermal wells drilling sites along the Denali fault. The new 3D model showed a coherent fault trace along strike, as well as eliminated several anomalies the researchers in the original paper could not explain. This improved ELF-EM inversion …
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Well-log based determination of rock thermal conductivity in the North German Basin
… maturation processes, but also for understanding geothermal conditions in a geological setting. In conjunction with the temperature gradient, thermal conductivity represents the basic input parameter for the determination of the heat-flow density; which, in turn, is applied as a major input …
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Geoejector : extracting geothermal fluid from a low-pressure geothermal well
… was developed and tested at the Theistareykir Geothermal Field in 2020 and 2021. The system connected a low-pressure geothermal well to a nearby high-pressure well to induce flow from the low-pressure well under otherwise unfavorable pressure. The subsonic geoejector has similar working …