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Ilioudi, A. (author), Wolf, B.J. (author), Dabiri, A. (author), De Schutter, B.H.K. (author)
The majority of computer vision architectures are developed based on the assumption of the availability of good quality data. However, this is a particularly hard requirement to achieve in underwater conditions. To address this limitation, plenty of underwater image enhancement methods have received considerable attention during the last...
conference paper 2023
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Alkharraa, H.S.H. (author), Wolf, K.H.A.A. (author), Kwak, Hyung T. (author), Deshenenkov, Ivan S. (author), AlDuhailan, Mohammed A. (author), Mahmoud, Mohamed A. (author), Arifi, Suliman A. (author), AlQahtani, Naif B. (author), AlQuraishi, Abdulrahman A. (author), Zitha, P.L.J. (author)
Macro-, meso-, micro-pore systems combined with clay content are critical for fluid flow behavior in tight sandstone formations. This study investigates the impact of clay mineralogy on pore systems in tight rocks. Three outcrop samples were selected based on their comparative petrophysical parameters (Bandera, Kentucky, and Scioto). Our...
conference paper 2023
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Janssen, M.T.G. (author), Draganov, D.S. (author), Bos, Jordan (author), Farina, B. (author), Barnhoorn, A. (author), Poletto, F. (author), Van Otten, G. (author), Wolf, K.H.A.A. (author), Durucan, S. (author)
In the ACT Consortium funded project SUCCEED, researchers study the potential for monitoring the process of (re-)injecting produced and captured CO2 into the Hellisheiði geothermal field for the aid of enhancing geothermal deployment as well as permanently storing CO2 through mineralization. The Hellisheiði site provides an excellent opportunity...
conference paper 2022
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Li, K. (author), Wolf, K.H.A.A. (author), Rossen, W.R. (author)
By trapping gas, foam can improve the sweep efficiency in enhanced oil recovery. In this study, to understand gas trapping in fractures, we have conducted experiments in a model fracture with a hydraulic aperture of 80 μm. One wall of the fracture is rough, and the other wall is smooth. The fracture is made of two glass plates and the direct...
conference paper 2021
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Li, K. (author), Wolf, K.H.A.A. (author), Rossen, W.R. (author)
In this study, to investigate how gravity affects foam in fractures, we carry out seven sets of foam-scan experiments on three glass model fractures (model A, model B and model C) with a hydraulic aperture of 78, 98 and 128 microns respectively. We compare the behaviour of foam in the models placed horizontally and vertically. We find that...
conference paper 2020
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Shah, S.Y. (author), As Syukri, Herru (author), Wolf, K.H.A.A. (author), Pilus, Rashidah M. (author), Rossen, W.R. (author)
Foam reduces gas mobility and can help improve sweep efficiency in an enhanced oil recovery process. For the latter, long-distance foam propagation is crucial. In steady gas-liquid flow, foam is generated in homogeneous porous media by exceeding a critical pressure gradient, which normally only happens near the wellbore. Away from wells, these...
conference paper 2019
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Shah, S.Y. (author), As Syukri, Herru (author), Wolf, K.H.A.A. (author), Pilus, Rashidah Mohd (author), Rossen, W.R. (author)
Foam reduces gas mobility and can help improve sweep efficiency in an enhanced-oil-recovery (EOR) process. For the latter, long-distance foam propagation is crucial. In porous media, strong foam generation requires that the local pressure gradient exceed a critical value (!P <sup>min</sup>). Normally, this happens only in the near-well region...
conference paper 2019
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Wolf, C. Christian (author), Mertens, C. (author), Gardner, Anthony D. (author), Dollinger, Christoph (author), Fischer, Andreas (author)
Differential infrared thermography (DIT) is a method of analyzing infrared images to measure the unsteady motion of the laminar–turbulent transition of a boundary layer. It uses the subtraction of two infrared images taken with a short time delay. DIT is a new technique which already demonstrated its validity in<br/>applications related to the...
conference paper 2018
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Shah, Swej Y. (author), Wolf, K.H.A.A. (author), Pilus, Rashidah M. (author), Rossen, W.R. (author)
Foam reduces gas mobility and can improve sweep efficiency in an enhanced-oil-recovery process. Previous studies show that foam can be generated in porous media by exceeding a critical velocity or pressure gradient. Such pressure gradients are typically encountered only near a well and therefore, it is uncertain whether foam can propagate far...
conference paper 2018
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Shojai Kaveh, N. (author), Barnhoorn, A. (author), Wolf, K.H.A.A. (author)
In recent years, the coupled UCG-CCS process has been considered as another potential CCS option, which can offer integrated energy recovery from coal and storage of CO2. However, existing potential problems may counteract its potential benefits. To develop a generic UCG-CCS site characterisation workflow, different aspects of this complex...
conference paper 2015
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Amerighasrodashti, A. (author), Farajzadeh, R. (author), Shojai Kaveh, N. (author), Suicmez, S. (author), Wolf, K.H.A.A. (author), Bruining, J. (author)
The wettability behavior of the matrix block is one of the major factors controlling the effectiveness of the employed EOR methods in NFRs. Water injection in NFRs with mixed-wet or effectively oil-wet matrix blocks usually results in low oil recoveries. In this case, gas injection is considered to be an alternative process, where the process...
conference paper 2015
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Shojai Kaveh, N. (author), Barnhoorn, A. (author), Schoemaker, F.C. (author), Wolf, K.H.A.A. (author)
For a water-saturated cap-rock, which consists of a low-permeability porous material, the wettability of the reservoir rock-connate water- CO2 system and the interfacial tension (IFT) between CO2 and connate water are the significant parameters for the evaluation of the capillary sealing. Also, the amount of capillary-trapped CO2 depends on the...
conference paper 2015
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Khosrokhavar, R. (author), Eftekhari, A.A. (author), Farajzadeh, R. (author), Wolf, K.H.A.A. (author), Bruining, J. (author)
The growing concern about global warming has increased interest in improving the technology for the geological storage of CO2 in aquifers. One important aspect for aquifer storage is the rate of transfer between the overlying gas layer and the aquifer below. It is generally accepted that density driven natural convection is an important...
conference paper 2015
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Shojaikaveh, N. (author), Rudolph, E.S.J. (author), Rossen, W.R. (author), Wolf, K.H.A.A. (author)
CO2 storage in deep saline aquifers and depleted gas reservoirs is largely controlled by interfacial phenomena among fluid phases and rock pore spaces. Reduction of the interfacial tension may result in the mobilization of connate water (capillary trapping). In addition, dissolving CO2 in formation water is one of the most important mechanisms...
conference paper 2014
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Shojaikaveh, N. (author), Amerighasrodashti, A. (author), Rossen, W.R. (author), Bruining, J. (author), Wolf, K.H.A.A. (author)
Carbon dioxide injection, either miscible or immiscible, has been known as an efficient strategy to enhance oil recovery as well as reduce CO2 emission. Wettability has a significant effect on the performance of enhanced oil recovery techniques because of its effect on fluid saturation distribution and flow behavior in porous media. For oil-wet...
conference paper 2014
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Peksa, A.E. (author), Zitha, P.L.J. (author), Wolf, K.H.A.A. (author)
Carbonated Water Flooding (CWF) is an alternative EOR method where an oil reservoir is flooded with carbonated (CO2-enriched) water. It is a promising solution for improving oil recovery that benefits from oil viscosity reduction, an increase in oil relative permeability and enhancement of oil mobility. At the same time CWF is a possible...
conference paper 2013
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Shojaikaveh, N. (author), Rudolph, E.S.J. (author), Rossen, W.R. (author), Van Hemert, P. (author), Wolf, K.H.A.A. (author)
Carbon capture and storage (CCS) has the potential for reducing CO2 emissions to the atmosphere. This option includes storage strategies such as CO2 injection into deep saline aquifers, depleted oil and gas reservoirs, and unmineable coal seams. This process is largely controlled by the interactions between CO2, the reservoir fluid and reservoir...
conference paper 2013
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Shojaikaveh, N. (author), Rudolph, E.S.J. (author), Wolf, K.H.A.A. (author), Ashrafizadeh, S.N. (author)
The injection of carbon dioxide (CO2) or flue gas into coal layers enhances the coal bed methane production (ECBM) and is also an option for CO2-storage. The success of this combined process depends strongly on the wetting behavior of the coal, which is a function of coal rank, ash content, pressure, temperature and composition of the gas. Two...
conference paper 2012
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Salimi, H. (author), Wolf, K.H.A.A. (author), Bruining, J. (author)
In this transition period from a fossil-fuel based society to a sustainable-energy society, it is expected that CO2 capture and subsequent sequestration in geological formations plays a major role in reducing greenhouse gas emissions. An alternative for CO2 emission reduction is to partially replace conventional-energy for heating and cooling...
conference paper 2012
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Mata Pavia, J. (author), Charbon, E. (author), Wolf, M. (author)
An imager for optical tomography was designed based on a detector with 128x128 single-photon pixels that included a bank of 32 time-to-digital converters. Due to the high spatial resolution and the possibility of performing time resolved measurements, a new contact-less setup has been conceived in which scanning of the object is not necessary....
conference paper 2011
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