HN
Authored
20 records found
Interference between geothermal doublets across a fault under subsurface uncertainty
Implications for field development and regulation
Direct Use Geothermal Systems (DUGS) are increasing their installed capacity worldwide and denser developments with multiple doublets are becoming more common. Interference between doublets therefore becomes an additional concern to subsurface uncertainties. Faults can be either
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The relation between well spacing and Net Present Value in fluvial Hot Sedimentary Aquifer geothermal doublets
A West Netherlands Basin case study
This paper analyzes the relation between well spacing and Net Present Value of a Hot Sedimentary Aquifer geothermal doublet. First, a sensitivity analysis is carried out to evaluate the effect of uncertainty of geological and production parameters on the Net present Value. Second
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Towards optimisation of geothermal heat recovery
An example from the West Netherlands Basin
The Netherlands experienced the fastest European expansion of geothermal energy exploitation in the past decade. The first Dutch geothermal sites proved that Hot Sedimentary Aquifers exploitation can play an important role in a future low-carbon energy mix. In this study, we esti
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Simulation of solute transport through fractured rock
A higher-order accurate finite-element finite-volume method permitting large time steps
Discrete-fracture and rock matrix (DFM) modelling necessitates a physically realistic discretisation of the large aspect ratio fractures and the dissected material domains. Using unstructured spatially adaptively refined finite-element meshes, we find that the fastest flow often
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Simulation of solute transport through fractured rock
A higher-order accurate finite-element finite-volume method permitting large time steps
Discrete-fracture and rock matrix (DFM) modelling necessitates a physically realistic discretisation of the large aspect ratio fractures and the dissected material domains. Using unstructured spatially adaptively refined finite-element meshes, we find that the fastest flow often
...
Multiscale fracture network characterization and impact on flow
A case study on the Latemar carbonate platform
A fracture network arrangement is quantified across an isolated carbonate platform from outcrop and aerial imagery to address its impact on fluid flow. The network is described in terms of fracture density, orientation, and length distribution parameters. Of particular interest i
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Multiscale fracture network characterization and impact on flow
A case study on the Latemar carbonate platform
A fracture network arrangement is quantified across an isolated carbonate platform from outcrop and aerial imagery to address its impact on fluid flow. The network is described in terms of fracture density, orientation, and length distribution parameters. Of particular interest i
...
Multiscale fracture network characterization and impact on flow
A case study on the Latemar carbonate platform
A fracture network arrangement is quantified across an isolated carbonate platform from outcrop and aerial imagery to address its impact on fluid flow. The network is described in terms of fracture density, orientation, and length distribution parameters. Of particular interest i
...
Multiscale fracture network characterization and impact on flow
A case study on the Latemar carbonate platform
A fracture network arrangement is quantified across an isolated carbonate platform from outcrop and aerial imagery to address its impact on fluid flow. The network is described in terms of fracture density, orientation, and length distribution parameters. Of particular interest i
...
Multiscale fracture network characterization and impact on flow
A case study on the Latemar carbonate platform
A fracture network arrangement is quantified across an isolated carbonate platform from outcrop and aerial imagery to address its impact on fluid flow. The network is described in terms of fracture density, orientation, and length distribution parameters. Of particular interest i
...
Multiscale fracture network characterization and impact on flow
A case study on the Latemar carbonate platform
A fracture network arrangement is quantified across an isolated carbonate platform from outcrop and aerial imagery to address its impact on fluid flow. The network is described in terms of fracture density, orientation, and length distribution parameters. Of particular interest i
...
Heat recovery from multiple-fracture enhanced geothermal systems
The effect of thermoelastic fracture interactions
This study investigates the effect of thermoelastic interactions between multiple parallel fractures on energy production from a multiple-fracture enhanced geothermal system. A coupled thermo-hydro-mechanical finite element model has been developed that accounts for non-isotherma
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Performance of low-enthalpy geothermal systems
Interplay of spatially correlated heterogeneity and well-doublet spacings
The low-enthalpy geothermal systems are commonly deployed in sedimentary geological settings that feature significant levels of deposition-induced heterogeneity. In this paper, realistic levels of heterogeneity in the form of varying porosity variance and spatial correlation leng
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Reactive dispersive contaminant transport in coastal aquifers
Numerical simulation of a reactive Henry problem
The reactive mixing between seawater and terrestrial water in coastal aquifers influences the water quality of submarine groundwater discharge. While these waters come into contact at the seawater groundwater interface by density driven flow, their chemical components dilute and
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Reactive dispersive contaminant transport in coastal aquifers
Numerical simulation of a reactive Henry problem
The reactive mixing between seawater and terrestrial water in coastal aquifers influences the water quality of submarine groundwater discharge. While these waters come into contact at the seawater groundwater interface by density driven flow, their chemical components dilute and
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Reactive dispersive contaminant transport in coastal aquifers
Numerical simulation of a reactive Henry problem
The reactive mixing between seawater and terrestrial water in coastal aquifers influences the water quality of submarine groundwater discharge. While these waters come into contact at the seawater groundwater interface by density driven flow, their chemical components dilute and
...
Reactive dispersive contaminant transport in coastal aquifers
Numerical simulation of a reactive Henry problem
The reactive mixing between seawater and terrestrial water in coastal aquifers influences the water quality of submarine groundwater discharge. While these waters come into contact at the seawater groundwater interface by density driven flow, their chemical components dilute and
...
The Great Unknown in Fractured Reservoirs
The Impact of Three Models for Aperture and Flow in Fractured Reservoirs
Predicting equivalent permeability in fractured reservoirs requires an understanding of the fracture geometry and aperture, which cannot be fully sampled from subsurface data. We quantify for a range of aperture-size scaling models and the Barton-Bandis conductive shear model the
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Fracture aperture in flow models
To average, or not to average?
Fracture networks are heterogeneous systems creating anisotropic flow patterns, though field-scale flow models of fractured reservoirs use up-scaling of the fracture network to effective properties to model flow. We study the impact of upscaling aperture from a realistic aperture
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