A5102993452- Geophysical and Geoelectrical Methods
- Seismic Waves and Analysis
- Geophysical Methods and Applications
- Hydrocarbon exploration and reservoir analysis
- Seismic Imaging and Inversion Techniques
- Hydraulic Fracturing and Reservoir Analysis
- Reservoir Engineering and Simulation Methods
- Geothermal Energy Systems and Applications
- CO2 Sequestration and Geologic Interactions
- Geological and Geophysical Studies Worldwide
- Methane Hydrates and Related Phenomena
- Geological and Geochemical Analysis
- Groundwater flow and contamination studies
- Probabilistic and Robust Engineering Design
- Remote Sensing and LiDAR Applications
- Scientific Research and Discoveries
- Geological and Geophysical Studies
- Earthquake Detection and Analysis
- Robotics and Sensor-Based Localization
- Geophysics and Sensor Technology
- High-pressure geophysics and materials
- 3D Surveying and Cultural Heritage
- Geological Studies and Exploration
- Geological Modeling and Analysis
- Landslides and related hazards
Dublin Institute For Advanced Studies
2017-2025
Université Gustave Eiffel
2019
Science and Technology on Surface Physics and Chemistry Laboratory
2019
Institut des Sciences de la Terre
2019
Université Savoie Mont Blanc
2019
Institute of Applied Geophysics of the Academy of Sciences
2010
RWTH Aachen University
2002-2006
Freie Universität Berlin
2002
We systematically describe an approach to estimate the large‐scale permeability of reservoirs using seismic emission (microseismicity) induced by fluid injection. call this seismicity‐based reservoir characterization (SBRC). A simple variant is based on hypothesis that triggering front hydraulically‐induced microseismicity propagates like a diffusive process (pore pressure relaxation) in effective homogeneous anisotropic poroelastic fluid‐saturated medium. The tensor medium upscaled...
Long-period magnetotelluric (MT) data have been collected along an E—W profile across the Central Andes in Northern Chile and Southern Bolivia. A 2-D resistivity model explaining these was found by inverse modelling. The includes a prominent conductivity anomaly backarc of South American subduction zone below Bolivian Altiplano. Another, comparatively localized occurs beneath Precordillera forearc. enhanced correlates with reflective zones, low seismic velocities high attenuation. In...
Accurate geophysical imaging of shallow subsurface features provides crucial constraints on understanding the dynamics volcanic systems. At Furnas Volcano (Azores), intense circulation fluids at depth leading to high CO2 outgassing and flank destabilization poses considerable threat local population. Presented is a novel 3-D electrical resistivity model developed from 39 magnetotelluric soundings that images hydrothermal system 1 km. The two conductive zones, one 100 m another 500 depth,...
Water-covered areas may lead to gaps in surface electromagnetic surveys, causing reduced resolution and, as a consequence, increased uncertainty derived subsurface models. We have evaluated boat-towed floating central loop time-domain technique that mitigates this problem. It facilitates obtaining data with spatial sampling density, which is rarely possible standard instrumentation on land, and it only requires moderate logistical effort. A unique field study shallow volcanic lake...
Regularized inversion is the most commonly used interpretation method for magnetotellurics (MT) data. This leads to smooth models, which minimize differences between model response and observed These however, do not represent only possible solution. The inherent non-uniqueness of problem errors in data lead existence equivalent that is, different models with very similar responses.
ABSTRACT The geological setting in the north of Ireland, especially concerning origin Moffat Shale Group, has long been under discussion. Within Tellus Programme Geological Survey airborne electromagnetic measurements revealed high‐conductivity anomalies that have interpreted as response a black shale. In order to petrophysically characterize Shale, laboratory study using material from two shallow boreholes was carried out. focuses on spectral induced polarization 23 oriented samples...
In this paper, we are interested in simulating a stochastic permeability distribution constrained by some pressure measures coming from steady flow (Poisson problem) over two-dimensional domain. The is discretized regular rectangular gird and considered to be constant cell but it can take randomly finite number of values. When such modeled using multidimensional Markov chain, measures. purpose work propose an algorithm that simulates not only also at points the simulation couples MCMC...
We have developed a floating TEM set-up for measurements on lakes which can be used in anchored and continuous mode. This system was applied the volcanic lake Lagou das Furnas Azores. The Volcano is located eastern part of São Miguel island (Azores). Volcanic activity nowadays mostly prominent northern caldera, where fumarolic fields, thermal springs intense CO2 outgassing are main hydrothermal manifestations. roundly shaped has diameter around 1.5 - 2 km. structures below as well extent...