S. de Hoop
16 records found
1
Authored
Towards the Uncertainty Quantification of Fractured Karst Systems
Reactive Transport and Fracture Networks: Where Numerical Modeling Meets Outcrop Observations
Fracture networks are abundant in subsurface applications (e.g., geothermal energy production, CO2 sequestration). Fractured reservoirs often have a very complex structure, making modeling flow and transport in such networks slow and unstable. Consequently, this lim ...
Multiphase mass and heat transfer are ubiquitous in the subsurface within manifold applications. The presence of fractures over several scales and complex geometry magnifies the uncertainty of the heat transfer phenomena, which will significantly impact, or even dominate, the ...
A coupled description of flow and thermal-reactive transport is spanning a wide range of scales in space and time, which often introduces a significant complexity for the modelling of such processes. Subsurface reservoir heterogeneity with complex multi-scale features increase ...
The main objective of this study is to perform Uncertainty Quantification (UQ) using a detailed representation of fractured reservoirs. This is achieved by creating a simplified representation of the fracture network while preserving the main characteristics of the high-fideli ...
The impact of natural fractures on heat extraction from tight Triassic sandstones in the West Netherlands Basin
A case study combining well, seismic and numerical data
The positive impact that natural fractures can have on geothermal heat production from low-permeability reservoirs has become increasingly recognised and proven by subsurface case studies. In this study, we assess the potential impact of natural fractures on heat extraction fr ...
Flow pathways in multiple-direction fold hinges
Implications for fractured and karstified carbonate reservoirs
Caves developed in carbonate units have a significant role in fluid flow, but most of these subsurface voids are below seismic resolution. We concentrated our study on four caves to determine the roles of fractures and folds in the development of karst conduits that may form f ...
The Morro Vermelho hypogenic karst system (Brazil)
Stratigraphy, fractures, and flow in a carbonate strike-slip fault zone with implications for carbonate reservoirs
The Morro Vermelho Cave (MVC) (Brazil) developed within the Morro Vermelho karst system, which affected Neoproterozoic limestones (Salitre Formation). The MVC experienced little interactions with meteoric processes and is an example of a hypogenic cave formed during strike-sli ...
Characteristics and genesis of hypogenic karsts in carbonate successions
Inferences for hydrocarbon and geothermal systems
Karst conduits formed along fracture corridors in anticline hinges of carbonate units
Implications for reservoir quality
The hypogenic caves developed in carbonate units have a significant structural control but most of their features are not detect by conventional methods due to their size below seismic resolution. This contribution focuses on the structural, petrographic and geometric characte ...
In this study, an attempt is made to better understand the effect coarsening of the parameter space has on the uncertainty representation of the response. Firstly, an HF ensemble of channelized reservoir models is constructed using a Multi-Point Statistic (MPS) approach. Sever ...