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Senatore, D. (author), ten Cate, A.T. (author), Laven, J. (author), van Benthem, R.A.T.M. (author), de With, G. (author)
In order to prevent a liquid epoxy cross-linker from premature, Arrhenius-law predicted, reaction with an acid-functional polyester resin, the liquid cross-linker has been physically separated from the resin by encapsulation while release is only possible by a temperature-controlled trigger. The glass transition temperature Tg of the polymeric...
article 2013
document
Mack, A. (author), Spruijt, M.P.N. (author)
In the present paper heavy gas dispersion calculations were performed with OpenFoam. For a windtunnel test case, numerical data was validated with experiments. For a full scale numerical experiment,a code to code comparison was performed with numerical results obtained from Fluent. The validationwas performed in a gravity driven environment ...
article 2013
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Wasch, L.J. (author), Koenen, M. (author), Wollenweber, J. (author), ter Heege, J.H. (author), Tambach, T.J. (author)
Large scale implementation of CO2 storage can significantly reduce emission of greenhouse gasses into the atmosphere. However, safe and long-term containment of CO2 in storage reservoirs must be ensured. Wellbores in the subsurface present possible leakage pathways for CO2 to the surface and hence wellbore cement reactivity is of major concern....
conference paper 2013
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Pulles, M.P.J. (author)
article 2013
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Yang, Z. (author), Velthuis, J.F.M. (author), Veltin, J. (author), Twerda, A. (author)
The main objective of this paper is to understand the physical processes of shut-in and restart of viscous multiphase flowline. For this purpose, experiments were performed on shut-in and restart processes in the Multiphase Flow Rig at Statoil's research Centre in Porsgrunn. Real crudes were used with oil viscosity up to 30,000 cP at room...
conference paper 2013
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Rasmussen, H.B. (author), Drupsteen, L. (author), Dyreborg, J. (author)
Background: The oil and gas industry in the Danish sector of the North Sea has always focused on reducing work-related accidents. Over the years, accident rates have been reduced, and near-miss reporting has gained in importance, because it allows the industry to learn from experience and prevent further accidents. Because of this importance,...
article 2013
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van der Linden, R.J.P. (author), Busking, T.E. (author)
As gas and oil fields mature their operation becomes increasingly more complex, due to complex process dynamics, like slugging, gas coning, water breakthrough, salt or hydrate deposition. Moreover these phenomena also lead to production constraints in the upstream facilities. This complexity asks for operator support in how to optimally operate...
conference paper 2013
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Visschedijk, A.H.J. (author), Denier van der Gon, H.A.C. (author), Hulskotte, J.H.J. (author), Quass, U. (author)
An inventory of Vanadium emissions for North-West Europe for the year 2005 was made based on an identification of the major sources. The inventory covers Belgium, Germany, Denmark, France, United Kingdom, Luxembourg, Netherlands and the OSPAR region of the North Sea. Vanadium emission were calculated bottom-up using energy use activity data and...
conference paper 2013
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van der Meulen, M.J. (author), Doornenbal, J.C. (author), Gunnink, J.L. (author), Stafleu, J. (author), Schokker, J. (author), Vernes, R.W. (author), van Geer, F.C. (author), van Gessel, S.F. (author), van Heteren, S. (author), van Leeuwen, R.J.W. (author), Bakker, M.A.J. (author), Bogaard, P.J.F. (author), Busschers, F.S. (author), Griffioen, J. (author), Gruijters, S.H.L.L. (author), Kiden, P. (author), Schroot, B.M. (author), Simmelink, H.J. (author), van Berkel, W.O. (author), van der Krogt, R.A.A. (author), Westerhoff, W.E. (author), van Daalen, T.M. (author)
Over the last ten to twenty years, geological surveys all over the world have been entangled in a process of digitisation. Their paper archives, built over many decades, have largely been replaced by electronic databases. The systematic production of geological map sheets is being replaced by 3D subsurface modelling, the results of which are...
article 2013
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van Baarle, D. (author)
article 2012
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Fonseca, R.M. (author), Leeuwenburgh, O. (author), Jansen, J.D. (author)
In a recent study two hierarchical multi-objective methods were suggested to include short-term targets in life-cycle production optimization. However this previous study has two limitations: 1) the adjoint formulation is used to obtain gradient information, requiring simulator source code access and an extensive implementation effort, and 2)...
conference paper 2012
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Jahn, J. (author), van den Bos, W.A.P. (author), van den Broeke, L.J.P. (author)
An overview is given of different membrane processes that are used for acid gas removal from natural gas. The main characteristics of selective membranes and membrane contactors for gas separation involving mixtures with acid gases are discussed. The removal of carbon dioxide from gaseous streams and solvents at elevated pressures is relevant...
conference paper 2012
document
Turkenburg, D.H. (author), Chin, P.T.K. (author), Fischer, H.R. (author)
We describe a water dispersed nano sensor cocktail based on InP/ZnS quantum dots (QDs) and atomic silver clusters with a bright and visible luminescence combined with optimized sensor functionalities for the water flooding process. The QDs and Ag nano sensors were tested in simulated reservoir conditions (high salinity, Ca2+, pH, high...
conference paper 2012
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ter Heege, J.H. (author), Wassing, B.B.T. (author), Orlic, B. (author)
article 2012
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Wassing, B.B.T. (author), van Wees, J.D. (author), Fokker, P.A. (author)
We developed a coupled code to obtain a better understanding of the role of pore pressure changes in causing fracture reactivation and seismicity during EGS. We implemented constitutive models for fractures in a continuum approach, which is advantageous because of the ease of integration in existing geomechanical codes (FLAC3D), the speed of the...
conference paper 2012
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Hanea, A. (author), Hanea, R. (author), Zilko, A. (author)
The objective of reservoir engineering is to optimize hydrocarbon recovery. One of the most common and efficient recovery processes is water injection. The water is pumped into the reservoir in injection wells in order to push the oil trapped in the porous media towards the production wells. The movement of the water front depends on the...
conference paper 2012
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van Bokhorst, E. (author), Blokland, H. (author)
Deep-sea oil and gas production normally involves the use of flexible risers that comprise a metal carcass with a large number of enveloping layers that safeguard the integrity of the pipe system. The flexible risers are hung from a floating platform and may be supported by several floating buoys to cushion the significant movements caused by...
article 2012
document
Engelen, S. (author), van den Oever, M. (author), Mahapatra, P.S. (author), Sundaramoorthy, P.P. (author), Gill, E.K.A. (author), Meijer, R.J. (author), Verhoeven, C.J.M. (author)
Nano-satellites have a cost advantage due to their low mass and usage of commercial-off-the-shelf technologies. However, the low mass also restricts the functionality of a nano-satellite's payload. Typically, this would imply instruments with very low to low resolution and accuracy, essentially ruling out applications such as remote sensing....
conference paper 2012
document
Engelen, S. (author), van den Oever, M. (author), Mahapatra, P. (author), Sundaramoorthy, P. (author), Gill, E. (author), Meijer, R.J. (author), Verhoeven, C. (author)
Nano-satellites have a cost advantage due to their low mass and usage of commercial-off-the-shelf technologies. However, the low mass also restricts the functionality of a nano-satellite's payload. Typically, this would imply instruments with very low to low resolution and accuracy, essentially ruling out applications such as remote sensing....
conference paper 2012
document
Balvers, M.G.J. (author), Verhoeckx, K.C.M. (author), Wortelboer, H.M. (author), Bijlsma, S. (author), Rubingh, C.M. (author), Meijerink, J. (author), Witkamp, R.F. (author)
It is well established that dietary intake of n-3 fatty acids is associated with anti-inflammatory effects, and this has been linked to modulation of the oxylipin and endocannabinoid metabolomes. However, the amount of data on specific tissue effects is limited, and it is not known how inflammation affects this relation. In the present study we...
article 2012
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