Searched for: subject%3A%22borehole%22
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Simader, Thomas (author)
Ground penetrating radar (GPR) data has proven to be a powerful tool for non-invasively estimating the electrical properties of the shallow subsurface. Petrophysical relationships allow them to be converted into hydrological parameters such as soil water content (SWC) and porosity. In the presence of thin layers, complex wave phenomena can occur...
master thesis 2023
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Zhou, F. (author), Giannakis, Iraklis (author), Giannopoulos, Antonios (author), Holliger, Klaus (author), Slob, E.C. (author)
In hydrocarbon drilling, mud filtrate penetrates permeable formations and alters the pore fluid characteristics in the immediate vicinity of the borehole. Typically, the prevailing in situ pore fluids are displaced by the invading mud filtrate, which leads to gradually changing distributions of the fluid and electrical properties....
journal article 2023
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Vardon, P.J. (author), Laumann, S.J. (author), Schmiedel, T. (author), Vargas Meleza, L. (author), Barnhoorn, A. (author), Abels, H.A. (author), Drijkoningen, G.G. (author), Dieudonné, A.A.M. (author), Beernink, S.T.W. (author), van den Berg, J.J. (author)
The multi-purpose research borehole at the Delftse Hout is the third of four seismic monitoring locations of the seismic monitoring network for the geothermal research project on the TU Delft campus (Geothermal Delft GTD, also known as DAPwell, https://geothermiedelft.nl/). For the geothermal research project, two deep wells (“a doublet”...
report 2022
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Zhou, F. (author)
Ground-penetrating radar (GPR), usually working in the frequency from tens of megahertz to several gigahertz, is widely applied in mapping near-surface applications. In recent decades, GPR is frequently utilized for fluid-related applications, such as groundwater assessment, contaminant monitoring, and water-filled fracture detection, based on...
doctoral thesis 2021
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Griffioen, Pieter (author)
The transition to renewable energy has lead to many new ways of energy production, such as wind and solar energy. For solar energy power, there is an excess of energy during summer and an deficiency of it during winter, which is reversed for the energy consumption. In order to amend this problem, there is an introduction of new ways of energy...
master thesis 2021
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Xu, L. (author), Guo, Fang (author), Hoes, Pieter-Jan (author), Yang, Xudong (author), Hensen, Jan (author)
This paper presents a modeling and simulation method that supports energy performance assessment and operation strategy investigation of borehole thermal energy storage in the Chifeng district heating (DH) system. A living laboratory in Chifeng, China that integrates a 0.5 million m3 borehole thermal energy storage system, an on-site solar...
journal article 2021
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Koenders, David (author)
Underground thermal energy storage (UTES) is an efficient technique to fulfill the heating and cooling demand of buildings. UTES uses stable subsurface temperatures store and extract energy. This study covers two types of UTES systems: aquifer thermal energy systems (ATES) and borehole heat exchangers (BHE). UTES systems in the Netherlands have...
master thesis 2020
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Garcia Manso, A. (author)
In the oil and gas industry a crucial step for detecting and developing natural resources is to drill wells and measure miscellaneous properties along the well depth. These measurements are used to understand the rock and hydrocarbon properties and support oil/gas field development. The measurements are done at multiple times and using different...
master thesis 2020
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Carrizo Mascarell, Maria (author)
A key practice in the development of unconventional hydrocarbon resources is to monitor hydraulic fracturing operations and analyze in detail the induced microseismicity, for understanding the extent of the volume affected by the fractures. Even though microseismic data are one of the few geophysical measurements that can be used for this...
master thesis 2020
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Bni Lam, N.H.N. (author), Al-Khoury, Rafid (author)
This paper presents a new parameter identification (PI) algorithm for estimating effective and detailed thermal parameters of ground source heat pump systems using data obtained from the well-known thermal response test. The PI comprises an iterative scheme coupling a semi-analytical forward model to an inverse model. The forward model is...
journal article 2020
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Minato, S. (author), Wapenaar, C.P.A. (author), Ghose, R. (author)
To quantitatively image fractures with high resolution, we have developed an elastic least-squares migration (LSM) algorithm coupled with linear-slip theory, which accurately addresses seismic wave interaction with thin structures. We derive a linearized waveform inversion using the Born approximation to the boundary integral equation for...
journal article 2020
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Zhou, F. (author), Giannakis, Iraklis (author), Giannopoulos, Antonios (author), Slob, E.C. (author)
In the phase of oil drilling, mud filtrate penetrates into porous formations and alters the pore fluid properties. This complicates well logging exploration, and inevitably gives rise to shift in reservoir estimation. Logging engineers deem mud invasion a harm and attempt to eliminate its impact on logging data exploration. However, from our...
conference paper 2019
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Minato, S. (author), Ghose, R. (author), Wapenaar, C.P.A. (author)
Single-well reflection imaging using sonic logging data successfully locates fine-scale structures around a borehole including fractures. In order to achieve accurate and quantitative estimation of fracture properties with high resolution, we propose to couple least-squares migration with linear slip theory. The proposed least-squares...
conference paper 2019
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Panteli, Nefeli (author)
In a Borehole Thermal Energy Storage (BTES) system, heat is extracted from or injected to the subsurface, taking advantage of the relatively constant temperatures of the underground. Both thermal conduction and advection can influence the performance of BTES systems, but thermal advection is often neglected in the design process. However, in...
master thesis 2018
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Zhou, F. (author), Miorali, M. (author), Slob, E.C. (author), Hu, Xiangyun (author)
The recently developed smart well technology allows for sectionalized production control by means of downhole inflow control valves and monitoring devices. We consider borehole radars as permanently installed downhole sensors to monitor fluid evolution in reservoirs, and it provides the possibility to support a proactive control for smart...
journal article 2018
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Caballero Hernandez, Enrique (author)
Nowadays more attention to environmental-friendly sources of energy has been given, aiming to slow down and counteract the damage to the ecosystem product of the abuse of fossil fuels. Different technologies on energy production, solar, wind, tidal, geothermic, etc., have been researched with the additional challenge of how to store it.<br/>From...
master thesis 2017
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Ooms, M.C. (author)
The Collisional Orogeny in the Scandinavian Caledonides (COSC) drilling project, supported by the International Continental Drilling Program (ICDP) and Swedish Research Council, was designed to study mountain building processes and the geologic structure and composition of the Caledonian orogeny in central Sweden. The 2.5 km deep scientific COSC...
master thesis 2016
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Bni Lam, N.H.N. (author), Al-Khoury, Rafid (author)
This paper introduces a semi-analytical model for the simulation of transient heat transfer with friction heat gain in a single U-tube geothermal borehole heat exchanger subjected to an arbitrary heat flux signal. The friction effect appears as a nonhomogeneous term in the governing equations, which constitutes a set of coupled partial...
journal article 2016
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Al-Khoury, Rafid (author), Focaccia, S. (author)
This paper introduces a semi-analytical model based on the spectral analysis method for the simulation of transient conductive-convective heat flow in an axisymmetric shallow geothermal system consisting of a double U-tube borehole heat exchanger embedded in a soil mass. The proposed model combines the exactness of the analytical methods with...
journal article 2016
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Xynogalou, M. (author)
Aquifer thermal energy storage (ATES) is a growing technology in the Netherlands. There are two kinds of ATES configurations the doublet and the single borehole ATES (SB-ATES) layout. The limited subsurface space in combination with the lower construction cost and the lower performance of the SB-ATES lead to the need to optimize their design....
master thesis 2015
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