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Paap, B. (author), Kraaijpoel, D. (author), Wassing, B. (author), van Wees, J.D. (author)
Numerical simulations of seismic wave propagation usually rely on a simple source modelconsisting of an idealized point location and a moment tensor. In general, this is a validapproximation when the source dimensions are small relative to the distance of points at whichthe seismic wave motions are to be evaluated. Otherwise, a more realistic...
article 2020
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TerHeege, J.H. (author), Osinga, S. (author), Carpentier, S. (author)
The properties of faults and fractures under dynamic reservoir conditions are critical in determining flow and performance of geothermal doublets in fractured reservoirs. The complexity of faults obtained from geological and seismic characterization is usually not honored in flow models for fractured reservoirs. Fault zone architectures may...
conference paper 2018
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Feng, T. (author), Leeuwenburgh, O. (author), Hewson, C. (author), Hanea, R.G. (author)
Alternating injection of water and gas (WAG) has been widely applied as an oil recovery strategy since the late 1950s. The expected benefits are improved macroscopic sweep, with the water and gas sweeping lower and upper zones of the reservoir respectively, and improved microscopic sweep due to various effects leading to lowering of the residual...
conference paper 2017
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Zhang, Y. (author), Leeuwenburgh, O. (author), Carpentier, S. (author), Steeghs, P. (author)
A distance parameterization of flood fronts derived from time-lapse seismic anomalies was recently developed to facilitate incorporation of time-lapse seismic data into history matching workflows based on ensemble methods such as the ensemble Kalman filter (EnKF) and the ensemble smoother (ES). A number of advantages were demonstrated on...
conference paper 2017
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Carpentier, S.F.A. (author), Steeghs, T.P.H. (author), Zhang, Y. (author), Leeuwenburgh, O. (author)
Recent progress in 4D seismic history matching benefits greatly from the use of 4D seismic timelapse data. Several methods for inversion of 4D seismic timelapse data for reservoir pressure and saturation have been developed with mixed success. Most of these methods work well on synthetic data or real data with low noise levels, but degrade in...
conference paper 2017
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Osinga, S. (author), Wassing, B.B.T. (author), Pizzocolo, F. (author), Fokker, P.A. (author), Eijs, R.M.H.E van (author), van den Bogert, P.A.J. (author)
Pressure maintenance by injection of nitrogen into a reservoir is one of the potential options to mitigate induced seismicity during gas production. It is expected that seismicity and the seismic hazard can be reduced by decreasing the stress changes and compaction associated with the declining pore pressure in the reservoir rocks. However,...
conference paper 2017
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Muller, C. (author), Maldonado, A.G. (author), Varnek, A. (author), Creton, B. (author)
Each oil reservoir could be characterized by a set of parameters such as temperature, pressure, oil composition, and brine salinity, etc. In the context of the chemical enhanced oil recovery (EOR), the selection of high performance surfactants is a challenging and time-consuming task since this strongly depends on the reservoir's conditions. The...
article 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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ten Veen, J.H. (author), Verreussel, R.M.C.H. (author), Ventra, D. (author), Zijp, M.H.A.A. (author)
Shale gas reservoir stimulation procedures (e.g. hydraulic fracturing) require upfront prediction and planning that should be supported by a comprehensive reservoir characterization. Therefore, understanding shale depositional processes and associated vertical and lateral sedimentological variability is key in predicting the character and...
conference paper 2014
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Zijp, M.H.A.A. (author), ten Veen, J.H. (author), Verreussel, R.M.C.H. (author), Ventra, D. (author)
Shale gas reservoir stimulation procedures (e.g. hydraulic fracturing) require upfront prediction and planning that should be supported by a comprehensive reservoir characterization. Therefore, understanding shale depositional processes and associated vertical and lateral sedimentological variability is key in predicting the character and...
conference paper 2014
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Leeuwenburgh, O. (author), Arts, R. (author)
The Ensemble Kalman Filter (EnKF), in combination with travel-time parameterization, provides a robust and flexible method for quantitative multi-model history matching to time-lapse seismic data. A disadvantage of the parameterization in terms of travel-times is that it requires simulation of models beyond the update time. A new distance...
conference paper 2012
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Szklarz, S.P. (author), Hanea, R.G. (author), Peters, E. (author)
In the history matching process reservoir parameters are estimated so they can be further used in a simulator to reproduce the past behaviour of the reservoir. During the last two decades the methodology evolved from manual methods to computer assisted procedures which can handle larger amounts of data. Now, when the computational power has...
conference paper 2011
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Leeuwenburgh, O. (author), Peters, E. (author), Wilschut, F. (author)
A history matching workflow, as typically used for updating of petrophysical reservoir model properties, is modified to include structural parameters including the top reservoir and several fault properties: position, slope, throw and transmissibility. A simple 2D synthetic oil reservoir produced by waterflooding is used to demonstrate issues...
conference paper 2011
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Miorali, M. (author), Slob, E.C. (author), Arts, R.J. (author)
In this paper we present laboratory experiments where we address the Ground Penetrating Radar (GPR) capability of monitoring oil displacement processes in porous media. This has significant applications in near-subsurface environments where remediation of contaminant such as oil-derived liquids is considered one of the major technical,...
conference paper 2011
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Peters, E. (author), Wilschut, F. (author), Leeuwenburgh, O. (author), van Hooff, P.M.E. (author)
Increasingly computer assisted techniques are used for history matching reservoir models. Such methods will become indispensable in view of the increasing amount of information generated by intelligent wells, in which case manual interpretation becomes too time consuming. Also, with the increasing possibilities for controlling a reservoir, a...
conference paper 2011
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Meekes, J.A.C. (author), Zhang, X. (author), Abdul Fattah, R. (author)
Geophysical monitoring of the dynamical behavior of subsurface reservoirs (oil, gas, CO2) remains an important issue in geophysical research. A new idea for reservoir monitoring based on electrical resistivity tomography was developed at TNO. The essential element of the so-called BSEMT (Borehole to Surface Electrical Monitoring Technique)...
conference paper 2011
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Fokker, P.A. (author), Orlic, B. (author), van der Meer, L.G.H. (author), Geel, C.R. (author)
Injection of CO2 in the InSalah field has caused uplift of the surface, as observed by satellite geodetic techniques (InSAR). Around one of the wells, KB-502, the uplift shows anomalous behaviour: a two-lobe pattern develops in the direction of the preferred fracture orientation. This indicates the tensile opening of a fracture or a fracture...
conference paper 2011
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Peters, E. (author), Arts, R.J. (author), Brouwer, G.K. (author), Geel, C.R. (author), Cullick, S. (author), Lorentzen, R.J. (author), Chen, Y. (author), Dunlop, K.N.B. (author), Vossepoel, F.C. (author), Xu, R. (author), Sarma, P. (author), Alhutali, A.H. (author), Reynolds, A.C. (author), TNO Bouw en Ondergrond (author)
In preparation for the SPE Applied Technology Workshop (ATW) held in Brugge in June 2008, a unique benchmark project was organized to test the combined use of waterflooding-optimization and history-matching methods in a closed-loop workflow. The benchmark was organized in the form of an interactive competition during the months preceding the ATW...
article 2010
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Abbink, O.A. (author), Hanea, R.G. (author), Nennie, E.D. (author), Peters, R.C.A.M. (author)
Petroleum production is a relatively inefficient process. For oil production, it is, generally, less than 60 % effective on a macro scale and less than 60 % effective on a micro scale. This results, commonly, in an actual oil recovery of less than 35 %. Optimization of the production process will, therefore, have a significant impact on the...
conference paper 2009
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van de Weijer, V. (author), van der Meer, B. (author), Kramers, L. (author), Neele, F. (author), Maurand, N. (author), le Gallo, Y. (author), Bossie-Codré, D. (author), Schäfer, F. (author), Evans, D. (author), Kirk, K. (author), Bernstone, C. (author), Stiff, S. (author), Hull, W. (author), TNO, Geological Survey of the Netherlands, P.O. Box 80015, 3508 TA Utrecht, Netherlands IFP, 1 et, 4, avenue de Bois-Préau, Rueil-Malmaison Cedex, France BGR, Stilleweg 2, Hannover, Germany BGS, Kingsley Dunham Centre, Keyworth, Nottingham, United Kingdom Vattenfall research and Development AB, Stockholm, Sweden E.ON Engineering, Ratcliffe-on Soar, Nottingham, United Kingdom (author)
CO2 storage in depleted gas fields is attractive but gas fields are unequally distributed geographically and can be utilized only within a restricted window of opportunity. Therefore, CO2 storage in saline aquifers can be expected to become an important element of CO2 capture and storage (CCS) systems. CO2 storage in saline aquifers is studied...
article 2009
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