Searched for: subject%3A%22karst%22
(1 - 13 of 13)
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Ji, Jiayan (author), Song, Xianzhi (author), Yi, Junlin (author), Song, G. (author), Wang, Gaosheng (author)
Fractures and caves are the main flow and storage channels for the karst geothermal reservoirs, and the water-rock reaction within them significantly affects the thermal performance. Most previous studies concentrated on the fractures, disregarding the impact of the pore water-rock reaction. The objective of this study is to explore the...
journal article 2024
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Richieri, Beatrice (author), Bittner, Daniel (author), Hartmann, Andreas (author), Benettin, Paolo (author), van Breukelen, B.M. (author), Labat, David (author), Chiogna, Gabriele (author)
Hydrochemical data of karst springs provide valuable insights into the internal hydrodynamical functioning of karst systems and support model structure identification. However, the collection of high-frequency time series of major solute species is limited by analysis costs. In this study, we develop a method to retrieve the individual solute...
journal article 2023
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de Hoop, S. (author)
Society relies on large amounts of energy to progress and allow for a high standard of living. The recent severe climate changes require advanced technologies related to cleaner energy resources. One such technology beneficial for accelerating this current energy transition is geothermal energy. This type of energy is often found in fractured...
doctoral thesis 2022
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van der Gugten, Niek (author)
This project focuses on the hinterland of Trieste, the Classic Karst plateau. It tries to rethink landscape maintenance approaches, seeking alternatives to aforestation that appreciate the three millennia long landscape identity of the karst as consisting of semi-natural dry grasslands. With advanced technological developments traditional...
master thesis 2022
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Pisani, Luca (author), Antonellini, Marco (author), Bezerra, Francisco H.R. (author), Carbone, Cristina (author), Auler, Augusto S. (author), Audra, Philippe (author), La Bruna, Vincenzo (author), Bertotti, G. (author), Balsamo, Fabrizio (author)
Fractured and karstified carbonate units are key exploration targets for the hydrocarbon industry as they represent important reservoirs. Furthermore, large water reserves and geothermal systems are hosted in carbonate aquifers. This paper documents the relationships between stratigraphy, structural patterns, silicification, and the spatial...
journal article 2022
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Furtado, Carla P.Q. (author), Medeiros, Walter E. (author), Borges, Sergio V. (author), Lopes, Juliana A.G. (author), Bezerra, Francisco H.R. (author), Lima-Filho, Francisco P. (author), Maia, Rubson P. (author), Bertotti, G. (author), Auler, Augusto S. (author), Teixeira, Washington L.E. (author)
The present study used a multitool approach to characterize fractures of several orders of magnitude in large fracture corridors, caves, and canyons to investigate their impact on fluid flow in carbonate units. The study area is the Brejões carbonate karst system that is located in the Neoproterozoic Salitre Formation in the Irecê Basin, São...
journal article 2022
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Kovacevic, Meho Saša (author), Bacic, Mario (author), Gavin, Kenneth (author)
This paper offers a solution to overcome time-consuming numerical analysis for the evaluation of the impact of tunnel construction in a complex karst environment by implementing Monte Carlo Simulation (MCS) using a neural network (NN) tool. The rock mass is described using three parameters: Geological Strength Index, the uniaxial compression...
journal article 2021
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El Ahmar, Lynn (author)
Carbonate reservoirs are of significant importance as they host a high percentage of the world’s oil and gas reserves. They are however subject to dissolution and may be heavily karstified often resulting in large cavities which may impose major hazards in drilling and production. In many cases, difficulty remains due to poor understanding of...
master thesis 2019
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Hanif Dinul Islam, Hanif (author)
More than 30% of the world’s hydrocarbon reserves are located in carbonate reservoirs, and this percentage is likely to increase, as a result of discoveries of new giant oil fields in carbonate rocks, generically named “Pre-salt layers”. However, there are still some problems in understanding karst systems that still unresolved. The karst caves...
master thesis 2019
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Khadra, W.M. (author), Stuyfzand, Pieter Jan (author)
Managed aquifer recharge can store surface water as safe and reliable groundwater for later recovery. However, most options are problematic in karstic aquifers due to complex hydrodynamics reducing their effectiveness and hence general applicability. River bank filtration and urban stormwater infiltration systems are among the main managed...
journal article 2019
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Reith, Dominique (author)
In the context of the energy transition, rapid development of the geothermal sector in the Netherlands has to take place. The first steps have been taken by establishing the Green Deal UDG between multiple industrial consortia, which agree to share knowledge on the research and use of ultra-deep geothermal energy . The Dinantian carbonates are...
master thesis 2018
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Kovačević, Meho Saša (author), Gavin, Kenneth (author), Stipanović Oslaković, Irina (author), Librić, Lovorka (author)
The 189.50 m long Bobova tunnel constructed in 2005 is located on the D404 state highway and passes under a part of the Vežica – Sušak town area in Rijeka. The overburden above the tunnel pipe is between 2 m to 18 m thick. The rock mass along the tunnel route is made up of karst deposits (transient carbonate breccia, dolomite and limestone...
conference paper 2018
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Khadra, W.M. (author)
Coastal aquifer management has recently emerged as a main scope in groundwater hydrology, especially in arid and semi-arid zones. About two thirds of the human population are currently gathered close to shorelines relying on coastal groundwater resources. Worldwide, these systems are subject to quality deterioration due to a multitude of...
doctoral thesis 2017
Searched for: subject%3A%22karst%22
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