Searched for: contributor:"Jansen, J.D. (promotor)"
(1 - 20 of 23)

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Diaz Cortes, G.B. (author)
Simulation of flow through highly heterogeneous porous media results in large ill-conditioned systems of equations. In particular, solving the linearized pressure system can be especially time-consuming. Therefore, extensive efforts to find ways to address this issue effectively are required. In this work, we introduce a POD-based deflation...
doctoral thesis 2019
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Jesus de Moraes, R. (author)
The exploitation of subsurface resources is, inevitably, surrounded by uncertainty. Limited knowledge on the economical, operational, and geological setting are just a few instances of sources of uncertainty. From the geological point of view, the currently available technology is not able to provide the description of the fluids and rock...
doctoral thesis 2018
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Dalm, M. (author)
Sensor-based particle-by-particle sorting is a technique in which singular particles are mechanically separated on certain physical and/or chemical properties after determining these properties with a sensor. Sensor-based sorting machines can be incorporated into mineral processing operations in order to remove waste or sub-economic ore prior to...
doctoral thesis 2018
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Tene, M. (author)
Despite welcome increases in the adoption of renewable energy sources, oil and natural gas are likely to remain the main ingredient in the global energy diet for the decades to come. Therefore, the efficient exploitation of existing suburface reserves is essential for the well-being of society. This has stimulated recent developments in computer...
doctoral thesis 2018
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Soleymani Shishvan, M. (author)
doctoral thesis 2018
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Wambeke, T. (author)
Declining ore grades, extraction at greater depths and longer hauling distances put pressure on maturing mines. Not enough new mines will be commissioned on time to compensate for the resulting shortages. Ore-body replacement rates are relatively low due to a reduced appetite for exploration. Development times are generally increasing and most...
doctoral thesis 2018
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van der Meer, J.M. (author)
If secondary hydrocarbon recovery methods, like water flooding, fail because of the occurrence of viscous fingering one can turn to an enhanced oil recovery method (EOR) like the injection of foam. The generation of foam in a porousmedium can be described by a set of partial differential equations with strongly non-linear functions, which impose...
doctoral thesis 2018
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Goncalves Dias De Barros, E. (author)
Over the past decades, many technological advances have unlocked new opportunities to boost efficiency in the oil and gas industry (e.g., complex well drilling, injection of advanced chemicals, sophisticated instrumentation). The real engineering challenge is to apply these technologies in the best possible way for each particular case. This...
doctoral thesis 2018
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Yuksel-Pelk, C. (author)
In mining, modelling of the deposit geology is the basis for many actions to be taken in the future, such as predictions of quality attributes, mineral resources and ore reserves, as well as mine design and long-term production planning. The essential knowledge about the raw materialproduct is based on this model-based prediction, which comes...
doctoral thesis 2017
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Kahrobaei, S.S. (author)
doctoral thesis 2016
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Fonseca, R.M. (author)
In this dissertation we have investigated theoretical and numerical aspects of the Ensemble Optimization (EnOpt) technique for model based production optimization. We have proposed a modified gradient formulation for robust optimization which we show to be theoretically more robust than the earlier existing formulation. Through a series of...
doctoral thesis 2015
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Van Essen, G.M. (author)
The process of depleting an oil reservoir can be poured into an optimal control problem with the objective to maximize economic performance over the life of the ?eld. Despite its large potential, life-cycle optimization has not yet found its way into operational environments. The objective of this thesis is to improve operational applicability...
doctoral thesis 2015
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Farshbaf Zinati, F. (author)
Recent developments in the deployment of distributed fiber-optic sensing systems in horizontal wells carry the promise to lead to a new, cheap and reliable way of monitoring production and reservoir performance. Practical applicability of distributed pressure sensing for quantitative inflow detection will strongly depend on the specifications of...
doctoral thesis 2014
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Krymskaya, M.V. (author)
Global energy use is increasing. As societies advance, they will continue to need energy to power residential and commercial buildings, in the industrial sector, for transportation and other vital services. To satisfy this rising demand, liquid, natural gas, coal, nuclear power and renewable fuel sources are extensively developed. Particularly...
doctoral thesis 2013
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Lawniczak, W. (author)
A reservoir simulator mimics the movement of fluids in the presence of each other through a porous medium under some specified conditions. It is a numerical model of a real-life physical process, therefore, subject to uncertainty. Some uncertainties can be lowered by improving model-parameter estimates. This is where data assimilation plays an...
doctoral thesis 2012
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Namdar Zanganeh, M. (author)
Chemical enhanced oil recovery (EOR) is relatively expensive due to the high cost of the injected chemicals such as surfactants. Excessive use of these chemicals leads to processes that are not economically feasible. Therefore, optimizing the volume of these injected chemicals is of extreme importance. We intend to maximize the long-term...
doctoral thesis 2011
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Kaleta, M.P. (author)
Since the world's energy demand increases every year, the oil & gas industry makes a continuous effort to improve fossil fuel recovery. Physics-based petroleum reservoir modeling and closed-loop model-based reservoir management concept can play an important role here. In this concept measured data are used to improve the geological model, while...
doctoral thesis 2011
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Vakili Ghahani, S.A. (author)
An ‘upscaling/order-reduction’ solution transfers the relevant features of a geological model to a flow simulation model such that cost-efficient simulation, prediction and control of the fluid flow in an oil reservoir become feasible. In addition to the computational issues, in most reservoir applications and for a given configuration of wells,...
doctoral thesis 2010
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Van Doren, J.F.M. (author)
The demand for petroleum is expected to increase in the coming decades, while the production of petroleum from subsurface reservoirs is becoming increasingly complex. To meet the demand petroleum reservoirs should be operated more efficiently. Physics-based petroleum reservoir models that describe the flow in subsurface porous media can play an...
doctoral thesis 2010
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Przybysz-Jarnut, J.K. (author)
The numerical simulation of hydrocarbon reservoir flow is necessarily an approximation of the flow in the real reservoir. The knowledge about the reservoir is limited and some of the processes occurring are either not taken into account or not described in an adequate way. The parameters influencing the flow are usually not known, except in a...
doctoral thesis 2010
Searched for: contributor:"Jansen, J.D. (promotor)"
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