Searched for: subject:"Geomechanics"
(1 - 20 of 32)

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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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van Wees, J.D. (author), Pluymaekers, M. (author), Osinga, S. (author), Fokker, P. (author), van Thienen-Visser, K. (author), Orlic, B. (author), Wassing, B. (author), Hegen, D. (author), Candela, T. (author)
Building geomechanical models for induced seismicity in complex reservoirs poses a major challenge, in particular if many faults need to be included. We developed a novel way of calculating induced stress changes and associated seismic moment response for structurally complex reservoirs with tens to hundreds of faults. Our specific target was to...
article 2019
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van Wees, J.D. (author), Osinga, S. (author), van Thienen-Visser, K. (author), Fokker, P.A. (author)
The Groningen gas field in the Netherlands experienced an immediate reduction in seismic events in the year following a massive cut in production. This reduction is inconsistent with existingmodels of seismicity predictions adopting compaction strains as proxy, since reservoir creep would then result in a more gradual reduction of seismic events...
article 2018
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Fokker, P.A. (author), Osinga, S. (author)
Fast models to estimate subsidence resulting from subsurface extraction processes usually employ a nucleus-of-strain solution based on a center of compression. The solution for such a strain nucleus is then employed as an influence function. This approach is based on the superposition principle that applies for linear elasticity of the...
conference paper 2018
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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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Wassing, B.B.T. (author), Buijze, L. (author), Ter Heege, J.H. (author), Orlic, B. (author), Osinga, S. (author)
conference paper 2017
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Orlic, B. (author), Osinga, S. (author), Neele, F. (author), Al-Mayyan, H. (author), Kamal, D. (author)
Large-scale CO2 injection in saline aquifers will cause pressure build-up in brine far beyond the extent of CO2 plume. In this paper, we evaluate the geomechanical responses of large-scale CO2 storage in the multilayer aquifer of the Kra Al-Maru Trend in Kuwait. The site was selected after screening the whole territory of Kuwait, identifying and...
conference paper 2017
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Antropov, A. (author), Lavrov, A. (author), Orlic, B. (author)
Cap-rock integrity is of paramount importance during injection and subsequent long-term storage of CO2 in the subsurface. Preexisting (natural) and man-induced fractures in the cap rock represent potential flow paths out of the storage formation. In this study, a first-order semi-analytical model of flow through a vertical fracture penetrating...
conference paper 2017
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Wees, J.D.A.M. (author), Fokker, P.A. (author), van Thienen-Visser, K. (author), Wassing, B.B.T. (author), Osinga, S. (author), Orlic, B. (author), Ghouri, S.A. (author), Buijze, L. (author), Pluymaekers, M.P.D. (author)
In the Netherlands, over 190 gas fields of varying size have been exploited, and 15% of these have shown seismicity. The prime cause for seismicity due to gas depletion is stress changes caused by pressure depletion and by differential compaction. The observed onset of induced seismicity due to gas depletion in the Netherlands occurs after a...
article 2017
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Orlic, B. (author)
In this paper, the geomechanical impact of large-scale carbon dioxide (CO2) storage in depleted Dutch gas fields is compared with the impact of CO2 storage in saline aquifers. The geomechanical behaviour of four potential CO2 storage sites is examined using flow and geomechanical simulations. Many gas reservoirs in the Netherlands are found in...
article 2016
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Shahid, A.S.A. (author), Fokker, P.A. (author), Rocca, V. (author)
Hydraulic fracturing, natural fracture reactivation and resulting induced microseismicity are interconnected phenomena involved in shale gas exploitation. Due to their multi-physics and their complexity, deep understanding of these phenomena as well as their mutual interaction require the adoption of coupled mechanical and fluid flow approaches....
article 2016
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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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Gaucher, E. (author), Schoenball, M. (author), Heidbach, O. (author), Zang, A. (author), Fokker, P.A. (author), van Wees, J.D. (author), Kohl, T. (author)
In order to reach Europes 2020 and 2050 targets in terms of greenhouse gas emissions, geothermal resources will have to contribute substantially to meeting carbon-free energy needs. However, public opinion may prevent future large-scale application of deep geothermal power plants, because induced seismicity is often perceived as an unsolicited...
article 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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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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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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van Wees, J.D.A.M. (author), Buijze, L. (author), van Thienen-Visser, K. (author), Nepveu, M. (author), Wassing, B.B.T. (author), Orlic, B. (author), Fokker, P.A. (author)
In this paper we present a review ofcontrolling geological, tectonic and engineering factors lor induced seismic¡ty associated to gas depletion in the Netherlands and we place experiences from extensive Dutch geomechanical studies in the past decade in the contex[ ofgeneric models for induced seismicity. Netherlands is in a mature gas production...
article 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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TerHeege, J.H. (author), Zijp, M. (author), DeBruin, G. (author), Buijze, L. (author)
Upfront predictions of hydraulic fracturing and gas production of potential shale gas targets in Europe are important as often large potential resources are deduced without detailed knowledge on the potential for successful stimulation. Such predictions are challenging as they need to be based on limited available data, i.e. without well tests...
conference paper 2014
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Zijp, M. (author), ten Veen, J. (author), Ventra, D. (author), Verreussel, R. (author), van Laerhoven, L. (author), Boxem, T. (author)
This study shows the first results of an ongoing project on the characterization of variations in lithological- and geomechanical properties of targetted gas shale formations. The aim of this study is to get an increased insight into both the fraccability and productivity of a shale formations. Ultimately, this can lead to better localization of...
conference paper 2014
Searched for: subject:"Geomechanics"
(1 - 20 of 32)

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