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Fonseca, R. M. (author), Della Rossa, E. (author), Emerick, A. A. (author), Hanea, R. G. (author), Jansen, J.D. (author)Since the early 2000's there has been a significant focus from many groups around the world towards the development and application of innovative technologies in order to improve reservoir management strategies and optimize field development plans. Benchmark studies are a very valuable way of evaluating and demonstrating the status and...conference paper 2018
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Diaz Cortes, G.B. (author), Jansen, J.D. (author), Vuik, Cornelis (author)We explore and develop POD-based deflation methods to accelerate the solution of large-scale linear systems resulting from two-phase flow simulation. The techniques here presented collect information from the system in a POD basis, which is later used in a deflation scheme. The snapshots required to obtain the POD basis are captured in two ways:...conference paper 2018
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Jansen, K.M.B. (author), Tarren, Bailey (author), Slingerland, M. (author)We developed disposable and stretchable on-skin sensors for simple and unobtrusive monitoring of posture and movements during daily activities. Simple sensor platforms like these are expected to become commonly accepted in the near future, not only for posture monitoring but also for e.g. motion monitoring in sports. The paper describes the...conference paper 2018
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Siraj, M.M. (author), van den Hof, P.M.J. (author), Jansen, J.D. (author)Model-based dynamic optimization of the water-flooding process in oil reservoirs is a computationally complex problem and suffers from high levels of uncertainty. A traditional way of quantifying uncertainty in robust water-flooding optimization is by considering an ensemble of uncertain model realizations. These models are generally not...conference paper 2017
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- Jansen, P.F.C. (author) conference paper 2017
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Insuasty, E (author), van den Hof, P.M.J. (author), Weiland, S (author), Jansen, J.D. (author)In this work, the application of tensor methodologies for computer-assisted history matching of channelized reservoirs is explored. A tensor-based approach is used for the parameterization of petrophysical parameters to reduce the dimensionality of the parameter estimation problem. Building on the work of Afra and Gildin (2013); Afra et.al. ...conference paper 2017
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- Bodde, W.P. (author), McCall, R.T. (author), Jansen, M.H.P. (author), van den Berg, Annemijn (author), Roelvink, D. (author) conference paper 2017
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Jesus de Moraes, R. (author), Fonseca, R.M. (author), Helici, M. (author), Heemink, A.W. (author), Jansen, J.D. (author)In this work, the application of tensor methodologies for computer-assisted history matching of channelized reservoirs is explored. A tensor-based approach is used for the parameterization of petrophysical parameters to reduce the dimensionality of the parameter estimation problem. Building on the work of Afra and Gildin (2013); Afra et.al. ...conference paper 2017
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Jansen, S.C. (author), Bokel, R.M.J. (author), Elswijk, M.J. (author), Mueller, Saskia (author)The traditional way of supplying energy to the built environment is no longer suitable: New buildings with high energy performance and decentralised renewable energy generation, together with the desire to become fossil-free, involve the need for new, more flexible and more integrated energy systems. The district of Buiksloterham was a test case...conference paper 2017
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- van der Meer, J.M. (author), Farajzadeh, R. (author), Jansen, J.D. (author) conference paper 2017
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Röggla, Thomas (author), Wang, Chen (author), Perez Romero, Lilia (author), Jansen, Jack (author), Cesar, Pablo (author)This article presents an end-to-end system for capturing physiological sensor data and visualising it on a real-time graphic dashboard and as part of an art installation. More specifically, it describes an event where the level of engagement of the audience was measured by means of Galvanic Skin Response (GSR) sensors and of the presenter...conference paper 2017
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Jesus de Moraes, R. (author), Rodrigues, J. R.P. (author), Hajibeygi, H. (author), Jansen, J.D. (author)A multiscale gradient computation method for multiphase flow in heterogeneous porous media is developed. The method constructs multiscale primal and dual coarse grids, imposed on the given fine-scale computational grid. Local multiscale basis functions are computed on (dual-) coarse blocks, constructing an accurate map (prolongation operator)...conference paper 2017
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Maas, T. R. (author), Bouts, M. N. (author), Joosten, G. J.P. (author), Jansen, J.D. (author)When new wells are planned, typically the same trajectory is used for assessing the effectiveness of conventional wells and wells with smart completions. This study demonstrates that the economically optimized trajectory for smart and conventional wells can be very different. Two new well trajectory optimization algorithms were developed...conference paper 2017
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Jansen, B. (author)Spreadsheets are a successful example of an end-user programming language, and the spreadsheet paradigm shares several characteristics like composition, selection, and repetition with programming languages. There are compelling reasons that spreadsheets are code. For most programming languages, developers are supported by powerful IDEs. However,...conference paper 2016
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Jansen, S.C. (author), Meggers, F. (author)The IEA Annex 64 focusing on low-ex communities aims at the improvement of energy conversion chains on a community scale, using exergy analysis as the primary evaluation mode. Within this Annex the participants discuss important aspects and available methods for energy and exergy assessment as well as the added value of aiming for low exergy ...conference paper 2016
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van Wees, T. (author), Hanselaar, C.A.J. (author), Jansen, E (author), Cervone, A. (author), Zandbergen, B.T.C. (author), van Zeijl, H.W. (author)In the last decade, CubeSat development has shown the potential to allow for low-risk, low-cost space missions. To further improve the capabilities of CubeSats in large scale missions, a novel micro-propulsion system is being developed at Delft University of Technology. The system is based on a Vaporizing Liquid Microthruster (VLM), which is...conference paper 2016
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Diaz Cortes, G.B. (author), Vuik, Cornelis (author), Jansen, J.D. (author)We consider deflation-based pre-conditioning of the pressure equation for large-scale reservoir models with strong spatial variations in the permeabilities. The use of deflation techniques involves the search for good deflation vectors, which usually are problem-dependent. We propose the use of proper orthogonal decomposition (POD) to generate...conference paper 2016
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Jesus de Moraes, R. (author), Rodrigues, J.R.P. (author), Hajibeygi, H. (author), Jansen, J.D. (author)We present an efficient multiscale (MS) gradient computation that is suitable for reservoir management studies involving optimization techniques for, e.g., computer-assisted history matching or life-cycle production optimization. The general, algebraic framework allows for the calculation of gradients using both the Direct and Adjoint derivative...conference paper 2016
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Goncalves Dias De Barros, E. (author), Yap, F.K. (author), Insuasty, E (author), Van den Hof, PMJ (author), Jansen, J.D. (author)Closed-loop reservoir management (CLRM) is a combination of life-cycle optimization and computerassisted history matching. The application of the CLRM framework to real field cases can be computationally demanding. An even higher computational load results from procedures to assess the value of information (VOI) in CLRM. Such procedures, which...conference paper 2016
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van der Meer, J.M. (author), Kraaijevanger, JFBM (author), Möller, M. (author), Jansen, J.D. (author)Many enhanced oil recovery (EOR) processes can be described using partial differential equations with parameters that are strongly non-linear functions of one or more of the state variables. Typically these nonlinearities result in solution components changing several orders of magnitude over small spatial or temporal distances. The numerical...conference paper 2016