Browsing Fakultät für Geowissenschaften und Geographie (inkl. GAUSS) by Advisor "Sauter, Martin Prof. Dr."
Now showing items 1-20 of 27
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Development of experimental and numerical models to predict the behavior of Kinetic Interface Sensitive (KIS) tracers for multiphase flow in porous media systems - A novel reactive tracer to measure fluid-fluid interfacial area in both static and dynamic conditions
(2024-04-12)An important aspect of understanding the behavior of a two-phase flow system is detecting and measuring the Fluid-Fluid Interfacial Area (FIFA). For example, in underground Gas/Oil/CO2 storage where two phases can co-exist, ... -
Understanding heat transport processes in shallow subground resulting from external and internal impacts
(2024-01-18)Heat conduction in the subsurface environment is the result of internal and external impacts and is governed by different forces in the short and long term. Externally, this phenomenon is related to daily temperature ... -
Numerical simulation of permeability heterogeneity in single- and two-phase flow systems to assess the performance of enhanced geothermal system
(2022-11-09)The development of Enhanced Geothermal System (EGS) technology leads to the possibility of an extensive application of geothermal energy, which is attractive because of its ability to reduce CO2 emissions and dependence ... -
Hydrochemical and environmental isotope study of the geothermal water in Mae Chan (North) and Ranong (South) geothermal areas in Thailand
(2021-05-28)The exploration and development of geothermal resources in Thailand have been investigated for electricity generation since 1946. In total, 112 hot springs are manifested which mostly scattered at the granite body from the ... -
Numerical modelling of single- and multi-phase flow and transport processes in porous media for assessing hydraulic fracturing impacts on groundwater resources
(2020-05-28)The environmental footprint of hydraulic fracturing has gained substantial attention in the water – energy nexus as the technology is relatively new and its long-term impacts are not thoroughly understood. Of primary ... -
Water management strategies towards sustainable agricultural development, taking Managed Aquifer Recharge (MAR) and brackish water utilization into Account: Case Study: Auja, LJV, Palestine.
(2019-06-07)Increasing water irrigation demand combined with water scarcity and deterioration of the water quality in the Lower Jordan Valley (hereafter referred to as LJV) - Palestine, has led to a serious challenge in managing ... -
Identification and quantification of the effects of flow regime and matrix-conduit interaction in the characterization of karst aquifers
(2018-03-13)In addition to alluvial aquifers, karst aquifers are counted among the most important groundwater resources. Besides the high benefit of karstic springs, they also pose risks to the user or people living close to those ... -
An Integrated Approach of Analyzing Management Solutions for the Water Crisis in Azraq basin, Jordan
(2017-05-18)Natural groundwater replenishment in (semi-) arid areas is low and can be sometimes negligible as a result of low precipitation rates and high evapotranspiration. Therefore, groundwater resources in these areas can be ... -
Single-well tracer push-pull method development for subsurface process characterization
(2016-12-07)Geological inherent knowledge, hydraulic test and geophysical methods can estimate most of the stimulated georeservoir properties. The transport effective parameters such as fracture aperture and effective porosity cannot ... -
Characterization of groundwater flow and vulnerability assessment of karstic aquifers - Development of a travel time based approach and application to the Tanour and Rasoun spring catchment (Ajloun, NW-Jordan)
(2016-08-24)Understanding the karst aquifer response to precipitation and contaminants transport, especially in arid to semi-arid areas, is a very important issue and a challenge due to the unique and heterogeneous characteristics of ... -
Development and application of a modelling approach for distributed karst aquifer characterization and groundwater residence time derivation
(2016-01-19)Spring protection in karst aquifers is particularly challenging since their high complexity thwarts their characterization by traditional field investigated methods. Especially the properties of the highly conductive conduit ... -
The role of fault zones on structure, operation and prospects of geothermal reservoirs - A case study in Lahendong, Indonesia
(2015-05-27)Expiration of fossil fuels and climate irregularities directs the energy demands towards renewable energy sources for the energy supply in future. In this frame, geothermal energy gives a substantial contribution to the ... -
Investigations on groundwater dewatering by using vertical circulation wells: Numerical simulation method development and field validation
(2015-03-06)Construction dewatering is a common engineering problem encountered at construction and mining sites. Successful site dewatering requires proper design and implementation of groundwater lowering techniques depending on ... -
Flow and transport in saturated and unsaturated fractured porous media: Development of particle-based modeling approaches
(2014-10-13)The main objective of this thesis is the development of particle-based flow and transport models to assist in the characterization of small-scale flow features and provide insight into the complex flow and transport dynamics ... -
Hydrogeological characterisation of karst aquifers in semi-arid environments at the catchment scale – Example of the Western Lower Jordan Valley
(2014-09-26)The main objective of the study is the characterisation of karstified carbonate aquifers in the semi- arid climate zone, where groundwater resources are frequently threatened by overexploitation and pollution. Despite often ... -
Heat Transport Phenomena in Shallow Geothermal Boreholes
(2014-02-26)The branch of shallow geothermics is part of renewable energies with a potential that has not been fully exploited. Although various analytical and numerical approaches to determine the processes in vertical borehole ... -
On the possibility of using organic molecules in the characterization of subsurface processes
(2013-05-15)Nowadays, tracer tests represent an important part in the repertoire of hydro(geo)logical characterization techniques. For determining hydromechanical parameters of and flow properties within a reservoir or an aquifer, ... -
Testing selected micro-contaminants for their applicability as water quality indicators
(2013-02-07)The use of anthropogenic micro-contaminants such as pharmaceuticals, lifestyle products, biocides, and pesticides as water quality indicators has aroused great interest in the scientific community and there is a high ... -
Identification of indicator parameters for the quantitative assessment of vulnerability in karst aquifers
(2012-07-26)Prediction of contaminant transport in karst aquifers is therefore challenging and requires the knowledge of flow characteristics and transport processes in these systems. Based in this information, quantitative vulnerability ... -
Stability and Reactivity of Organic Molecules in Geothermal Reservoirs
(2012-02-22)The present work deals with laboratory studies of tracers for geothermal applications. Analytical methods for the detection of molecules being used as non-reactive tracers are presented and ...