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Hassing, Sverre (author)CO2 and H2S are reinjected at Hellisheiði, Iceland, to reduce the emissions of greenhouse gases. An active-source seismic campaign was done in July, 2021, to image the reinjection reservoir with various seismic methods for consecutive monitoring. At the same time, passive-source seismic data was recorded for imaging.<br/>We process this passive...master thesis 2022
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van de Griendt, Toon (author)Currently, a large part of the energy used to provide heat to heating network comes from gas boilers, a combustion process where 2.2kg of CO2 is emitted for every m^3 of gas. Deep geothermal energy is implemented more in The Netherlands over the last couple of years as a substitute to the conventional boilers and this is a technique that is...master thesis 2022
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Fehnker, Hauke (author)The North German basin holds high potential for geothermal lithium exploration. Yet, so far, the assessment of reservoirs concentrates on locations in the Upper Rhine Graben. This thesis gives an example for the evaluation of a potential geothermal lithium reservoir of the Middle Buntsandstein at the location Horstberg in Lower Saxony. The...master thesis 2022
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van IJsseldijk, Johno (author)Global phases are seismic waves that travel through the earth's core before emerging at the surface. Traditionally, global phases are used to obtain subsurface information up to 1 Hz. A recent study, however, found that signal present in the coda of strong, distant earthquakes contains higher frequencies. Quantitative analysis of the coda of...master thesis 2018
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Ravilov, Marat (author)The primary goal of the present work is evaluation and comparison of vertical and horizontal well placements and their impact on the power output of a CPG (CO2 Plume Geothermal) system. Performances of vertical and horizontal wells are evaluated for a repeated five-spot pattern. Six numerical models were developed in MOOSE (Multiphysics Object...master thesis 2019
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Naranjo Hernandez, David (author)In 2017 the National Power Company in Iceland, Landsvirkjun, started the operation of a geother- mal power plant in Theistareykir (Northeastern Iceland). The plant’s operation requires extraction, circulation, and injection of the geothermal fluids to produce energy. These processes depend on the existing fracture network of the reservoir....master thesis 2020
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Oudshoorn, Christiaan (author)The data assimilation process for geothermal reservoirs often relies on well data which primarily offers insights into the immediate vicinity of the borehole. However, integrating geophysical methods can provide valuable information beyond well proximity, possibly enhancing reservoir predictions. Electromagnetic methods can be sensitive to the...master thesis 2023
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Blanch Jover, María (author)The Bedretto Laboratory, located within the Rotondo granite, conducts stimulations of the host rock to investigate the possibility of enhanced geothermal energy and tries to better understand the risk of induced seismicity. Seismic anisotropy plays an important role when processing seismic data, making its characterization essential in such a...master thesis 2023
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Rhodes, Abby (author)The CO\textsubscript{2} Plume Geothermal (CPG) Consortium was created in March 2023 to demonstrate the potential and technical feasibility of CO\textsubscript{2} Plume Geothermal at candidate sites in an integrated academic and industry synergistic collaboration. Following 12 years of theoretical CPG research, the consortium will execute a field...master thesis 2023
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Andriopoulos, Sief (author)The Paris Agreement was created in an effort to enhance the global response to the issue of climate change. To reach this goal, greenhouse gas emissions must be at least 40% below 1990 levels by 2030 and the temperature rise must be kept below 2 degrees Celsius this century. Moreover, the recent fossil fuel price increases, are pressing eye...master thesis 2022
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- Lindner, Nadja (author) master thesis 2023
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Margert, Andrei (author)Acidizing is a widely used technique for intensification of geothermal wells. At certain conditions, acid injection results in a formation of highly conductive channels, e.g. wormholes. The associated rock matrix dissolution is highly nonlinear and may influence the fluid flow as well as rock properties. Wormhole patterns and breakthrough time...master thesis 2021
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Schifflechner, Christopher (author)The utilization of deep geothermal resources for combined heat and power generation in Germany has increased slowly but continuously during the last years. Due to the growing technical readiness, the focus is now shifting from the first proof of concepts to optimizing the performance of existing plants. One promising approach is the further...master thesis 2019
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Oldenhuis, Job (author)The drilling industry faces the challenge of moving away from conventional maintenance strategies to maximise operational efficiency. This thesis introduces a holistic approach to land drilling rig Predictive Maintenance (PdM), integrating component maintenance into system-level decision-making. By taking the operations of the whole system into...master thesis 2024
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Biagini, Maria Erica (author)In a world transitioning towards renewable energies and lithium-battery powered cars, there has been an annual increase in demand of 6% for lithium and other rare metals between 2000 and 2008 (Stringfellow & Dobson, 2021a), and this increase in demand is forecast to continue through 2040 (Latnussa et al., 2020). Meanwhile, there is a concern...student report 2022
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Troian, S. (author)This "designers' manual" is made during the TIDO-course AR0531 Smart & Bioclimatic Design. One of the possible ways for smart and sustainable designs is the use of geothermal energy for space heating. This manual explains the possible use in designs, the functioning and treats different systems.student report 2012
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Tollenaar, Veronica (author)Measurements of a tachymetric network in the geothermal area of Bjarnarflag in North-East Iceland are performed during four consecutive years (2015-2018). For the yearly adjustment of the measurements an alternative iteration scheme to Baarda’s ’B-method of testing’ is proposed, because the level of significance of the F-test performed in the...student report 2019
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van den Berg, M.M.D. (author)If one wants to enter a discussion about controversial (environmental) problems like the greenhouse effect with the actual intention of working through to a solution and implementing this solution, there are several steps to be taken. First of all, the nature, size and impact of the problem have to be determined and generally acknowledged....student report 1999
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Admiraal, M. (author), Couasnon, A. (author), Huijzenveld, T. (author), Hutten, R. (author), Schölvinck, O. (author), Van Veen, N. (author)In Nicaragua, active research for arsenic started in 1996, after the first case of arsenic poisoning was reported in a rural community. Arsenic concentrations present in drinking water cause chronic poisoning, which depending on the exposure, lead to several life-threatening long term effects. It is however unknown to what extent this...student report 2015
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Akkermans, Sjoerd (author), Sass, John (author), Barlet, Luis (author), Zijlstra, Esther (author), Jha, Ayush (author)In this multidisciplinary project several aspects of geosciences are combined. The regional geology background was summarized and linked to the borehole data.<br/>Multiple tests were conducted on the well to answer several questions. The slug test indicated that the fracture is still open and essentially confirmed that it is a shear fracture,...student report 2023