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Wassing, B.B.T. (author)
Current methods which are used for seismic hazard analyses of production induced seismicity in The Netherlands are generally based on either empirical relations which link compaction strain and seismic release or simple relations between available fault area and seismic moment release. Physics based understanding of the impact of streb evolution...
conference paper 2015
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Buijze, L. (author), Orlic, B. (author), Wasssing, B.B.T. (author), Schreppers, G.J. (author)
conference paper 2015
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ter Heege, J.H. (author), Zijp, M.H.A.A. (author), Nelkamp, S. (author)
While extensive data and experiences are available for hydraulic fracturing and hydrocarbon production from shales in the U.S.A., such a record is lacking in many underexplored shale basins worldwide. As limited data is usually available in these basins, analysis of shale prospectivity and identification of sweet spots for oil & gas production...
conference paper 2015
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Loeve, D. (author), Veldkamp, J.G. (author), Peters, E. (author), van Wees, J.D.A.M. (author)
In the production well of a low-enthalpy geothermal doublet hot water is pumped from reservoirs at about 50-1007deg;C. After passing through a heat exchanger, the cold water is re-injected at about 20-357deg;C in the injection well into the reservoir, which initially has the same temperature as the produced water. Under some circumstances, this...
conference paper 2015
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Leeuwenburgh, O. (author), Hofstee, C. (author), Wilschut, F. (author)
The displacement of heavy oil by water flooding is characterized by instable features known as viscous fingers. These fingers may form at very small scales, as can be observed in laboratory experiments and predicted from instability theory. Explicit representation of such features in large-scale reservoir models is practically impossible because...
conference paper 2015
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Fonseca, R.M. (author), Leeuwenburgh, O. (author), Rossa, E.D. (author), van den Hof, P.M.J. (author), Jansen, J.D. (author)
We consider robust ensemble-based (EnOpt) multi-objective production optimization of on-off inflow control devices (ICDs) for a sector model inspired on a real-field case. The use of on-off valves as optimization variables leads to a discrete control problem. We propose a re-parameterization of such discrete controls in terms of switching times,...
conference paper 2015
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Peters, E. (author), Verweij, J.M. (author)
This paper presents preliminary results of the analysis and interpretation of the observed pre-production fluid overpressure distribution in Rotliegend sandstones in block L8 in the Dutch offshore. The general objective of this study is to develop workflows to improve the understanding of timescales of pressure dissipation in relation to...
conference paper 2015
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Fokker, P.A. (author), van Thienen-Visser, K. (author)
Surface movement data can be used in data assimilation or inversion exercises to improve the level of knowledge of a compacting reservoir. We have designed, implemented and tested a new algorithm that uses measured optical height differences directly, without having to translate them to heights with regard to a geodetic reference level. This way...
conference paper 2015
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Fonseca, R.M. (author), Kahrobaei, S.S. (author), van Gastel, L.J.T. (author), Leeuwenburgh, O. (author), Jansen, J.D. (author)
With an increase in the number of applications of ensemble optimization (EnOpt) for production optimization, the theoretical understanding of the gradient quality has received little attention. An important factor that influences the quality of the gradient estimate is the number of samples. In this study we use principles from statistical...
conference paper 2015
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ter Heege, J.H. (author), de Bruin, G. (author)
The sealing capacity of faults is one of the main controlling factors determining column heights of hydrocarbons in structural traps and potentially bypassed gas in undrained reservoir compartments. Limited available data in early exploration phases often hampers full incorporation of fault seal analysis and fault zone permeability in...
conference paper 2015
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van der Veer, E.F. (author), Waldmann, S. (author), Fokker, P.A. (author)
Underground storage of CO2 will lead to chemical fluid-rock interactions which may potentially alter the porosity and the flow patterns in faults. In this study, we present a coupled numerical model combining chemical fluid-rock interactions, aqueous diffusion, fluid flow, and mechanical processes, aiming at a better understanding of mineral...
conference paper 2015
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ter Heege, J.H. (author), Orlic, B. (author), Hoedeman, G.C. (author)
Wellbore zonal isolation is particularly important for subsurface storage of CO2, where well integrity must be ensured for very long time spans. In this study, three dimensional discrete element models of wellbore systems have been used to simulate failure and damage of wellbore cement and surrounding rock. The models allow simulation of...
conference paper 2015
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Barros, E.G.D. (author), Leeuwenburgh, O. (author), Van den Hof, P.M.J. (author), Jansen, J.D. (author)
This paper extends previous work on value of information (VOI) assessment in closed-loop reservoir management (CLRM) to estimate the added value of performing multiple measurements along the producing life of the reservoir. The new procedure is based on the workflow from our previous paper which allows to quantify the VOI of a single observation...
conference paper 2015
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Leeuwenburgh, O. (author), Egberts, P.J.P. (author), Chitu, A.G. (author)
We consider the problem of finding optimal long-term (life-cycle) recovery strategies for hydrocarbon reservoirs by use of simulation models. In such problems the presence of operating constraints, such as for example a maximum rate limit for a group of wells, may strongly influence the range of possible solutions. Commercial simulators often...
conference paper 2015
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Fokker, P.A. (author), Visser, J. (author)
We report a field study on solution mining of magnesium chloride from bischofite layers in the Netherlands at depths between 1500 and 1850 m. Subsidence that was observed in the area is due to part of the brine production being realized by cavern squeeze; some of which were connccted. Wc used an earlier developed inversion scheme to quantify the...
conference paper 2014
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Bruhn, D.F. (author), √Āgustsson, K. (author), Zang, A. (author), Rachez, X. (author), Wiemer, S. (author), Van Wees, J.D. (author), Calcagno, P. (author), Huenges, E. (author)
GEISER was a European project on understanding and mitigation of induced seismicty in geothermal operations. The project involved several European research institutions as well as industry and was funded by the European Commission within FP7. GEISER addressed a better understanding of the key parameters that control induced seismicity in...
conference paper 2014
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Delprat-Jannaud, F. (author), Pearce, J. (author), Neele, F. (author), Akhurst, M. (author), Nielsen, C. (author), Mazurowski, M. (author), Lothe, A. (author), Volpi, V. (author), Brunsting, S. (author)
The FP7 SiteChar project has examined the entire site characterization chain, from the initial feasibility studies through to the final stage of application for a storage permit, on the basis of criteria defined by the relevant European legislation, highlighting important issues and recommendations such as the importance of a fit-to purpose...
conference paper 2014
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Abdul Fattah, R. (author), Verweij, J.M. (author)
Pre-Westphalian layers are considered as potential source rocks in the Netherlands. However, there is little amount of information available on their maturity. 3D basin modelling is carried out on Central Onshore Netherlands to investigate the maturity of the deep Carboniferous source rocks. A detailed 3D geological model is used as input which...
conference paper 2014
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Verweij, J.M. (author), Daza Cajigal, V. (author), de Bruin, G. (author), Geel, K. (author)
The seals of the shallow gas occurrences in the northern offshore of the Netherlands are formed by siliciclastic intra-delta mudstones of Plio-Pleistocene age. There are no publicly available measured values of the seal capacity of these Plio-Pleistocene caprock mudstones. We developed, tested and applied a systematic approach to evaluate the...
conference paper 2014
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ter Heege, J.H. (author), Zijp, M.H.A.A. (author), de Bruin, G. (author), ten Veen, J.H. (author)
Uncertainties in upfront predictions of hydraulic fracturing and gas production of underexplored shale gas targets are important as often large potential resources are deduced based on limited available data. In this paper, uncertainties are quantified by using normal distributions of different input parameters in wellbased models for hydraulic...
conference paper 2014
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