Searched for: +
(81 - 99 of 99)

Pages

document
Fonseca, R.M. (author), Stordal, A.S. (author), Leeuwenburgh, O. (author), van den Hof, P.M.J. (author), Jansen, J.D. (author)
We consider robust ensemble-based multi-objective optimization using a hierarchical switching algorithm for combined long-term and short term water flooding optimization. We apply a modified formulation of the ensemble gradient which results in improved performance compared to earlier formulations. We also apply multi-dimensional scaling to...
conference paper 2014
document
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
document
ten Veen, J.H. (author), Verweij, J.M. (author), de Bruin, G. (author), Donders, T. (author)
Recent exploration activities in two of the largest deltas in the world, the still active Nile delta and the Cenozoic Southern North Sea (SNS) deltas, proved the potential of shallow gas resources. Although, previously seen as a hazard or an exploration tool for deeper hydrocarbons, the shallow gas accumulations may represent a valuable...
conference paper 2014
document
Mijnlieff, H.F. (author), Bloemsma, M.R. (author), Donselaar, M.E. (author), Henares, S. (author), Redjosentono, A.E. (author), Veldkamp, J.G. (author), Weltje, G.J. (author)
The Dutch Koekoekspolder geothermal doublet was drilled in 2011 targeting the Permian Rotliegendreservoir. The encountered reservoir properties were less favorable than expected pre-drill. Post-drill integrated evaluation of vintage data and the new data from the geothermal wells resulted in a refined depositional model of the area. The...
conference paper 2014
document
van Wees, J.D. (author), Kramers, L. (author), Mijnlieff, H.F. (author), de Jong, S. (author), Scheffers, B. (author)
There is a clear synergy possible in geothermal and hydrocarbon exploration if wells are targeted in a double play concept. In the Netherlands, clastic aquifers which have been explored extensively by the hydrocarbon industry and are now targeted for geothermal energy qualify well for a double play. Through a simple example we demonstrate...
conference paper 2014
document
Gaasbeek, H. (author), Goldberg, T. (author), Koenen, M. (author), Visser, W. (author), Wildenborg, T. (author), Steeghs, P. (author)
Implementation of geological CO2 storage requires monitoring for potential leakage, with an essential part being establishment of baseline CO2 in soil gas. CO2 concentrations and weather parameters were monitored for ∼2 years at three locations in the Netherlands. CO2 concentrations in soil ranged from 0.1 to 28% and were variable with site,...
conference paper 2014
document
Neele, F. (author)
CO2 capture, transport and storage (CCS) has the potential to significantly reduce the carbon emission that follows from the use of fossil fuels in power production and industry. Integrated demo-scale projects are currently being developed to demonstrate the feasibility of CCS and the first such projects are expected to start operating in Europe...
conference paper 2014
document
Sijacic, D. (author), Wildenborg, T. (author), Steeghs, P. (author)
TNO has developed a software tool that supports the design of a risk-based monitoring plan for a CO2 storage site. The purpose of the tool is to aid storage site operators by facilitating a structured monitoring technologies selection or evaluation process. The tool makes a selection this recommended monitoring technologies, based on a set of...
conference paper 2014
document
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
document
Orlic, B. (author), Buijze, L. (author)
conference paper 2014
document
Limberger, J. (author), van Wees, J.D. (author)
For the assessment of geothermal resources in Europe we constructed a digital 3D temperature model of the European crust and sedimentary basins, incorporating publicly available temperature data. Using European crustal thickness models and indirect parameters such as surface heat flow measurements, temperatures were calculated for regions where...
conference paper 2014
document
Rasha Al-Moraikhi, R. (author), Naveen Verma, N. (author), Mishra, P. (author), Houben, A.J.P. (author), van Hoof, T. (author), Verreussel, R. (author)
The past few decades the focus of hydrocarbon exploration and production in the Middle East progressively has moved to deeper/older plays. In fact, the Jurassic succession of the Arabian Platform is now among the major hydrocarbon-producing intervals of the Middle East. On this platform, widespread carbonate deposition resulted in a vertical and...
conference paper 2014
document
Hofstee, C. (author), Maas, J.H. (author), Loeve, D. (author)
The P18-4 compartment (operated by TAQA Energy B.V.) would be injected by CO2 at a minimum temperature of 12 degrees C. At these temperatures, the CO2 phase will either be a gas or a liquid. As the initial temperature of the reservoir is 120 oC, the CO2 will eventually be the gaseous or (at higher pressures), the supercritical phase. An...
conference paper 2013
document
Koenen, M. (author), Wasch, L.J. (author)
Many uncertainties exist in geochemical modeling. Mineral reactive surface area is one of the uncertain parameters. QEMSCAN analyses are performed on sandstone samples from a Dutch CO2 natural analogue to determine reactive surface areas. Geochemical modeling is performed using QEMSCAN surface areas and surface areas which are conventionally...
conference paper 2013
document
Orlic, B. (author), Wassing, B.B.T. (author)
Geomechanical simulations were conducted to study the effects of reservoir depletion on the stability of internal and boundary faults in gas reservoirs overlain by elastic and viscoelastic salt caprocks. The numerical models were of a disk-shaped gas reservoir with idealized geometry; they mimic the structure of a gas field in the northern...
conference paper 2013
document
Orlic, B. (author), ter Heege, J.H. (author), Wassing, B. (author)
Induced stress changes due to CO2 injection into geological reservoirs can mechanically damage bounding fault- and top seals creating preferential pathways for CO2 migration from the containment or trigger existing faults causing seismic activity at storage sites. In this paper we present geomechanical simulations of the poro-mechanical effects,...
conference paper 2011
document
Orlic, B. (author), ter Heege, J.H. (author), Wassing, B. (author)
The geomechanical effects of past hydrocarbon production and subsequent CO2 injection in depleted gas reservoirs were evaluated as a part of several recently accomplished feasibility studies of CO2 storage in the Netherlands. The objectives of geomechanical studies were to assess the mechanical integrity of a reservoir-seal system, i.e. the...
conference paper 2011
document
Arts, R. (author), Eyvazi, F.J. (author)
conference paper 2011
document
Orlic, B. (author)
Geomechanical simulations were conducted on a number of site-specific numerical models of depleted gas fields considered for CO2 storage in the Netherlands. Simulations were aimed at assessing the maximum areal extent of stress perturbation around depleted reservoirs at the end of depletion period. Simulation results indicate that the extent of...
conference paper 2011
Searched for: +
(81 - 99 of 99)

Pages