Papers & Presentations

Showing results 1 - 20 of 129

Geophysics and Geomechanics

3-D Multiphysics Modeling of a Producing Hydrocarbon Field 3-D Multiphysics Modeling of a Producing Hydrocarbon Field

Thermal anomalies indicating elevated temperatures often are present in producing hydrocarbon fields. This paper discusses precision temperature logs obtained over a salt dome in the Bayou Bleu hydrocarbon field in southwest Lousiana,...
COMSOL Conference 2005, Boston
McKenna, J.R.1, Blackwell, D.D.2
1 U.S. Army Engineer Research & Development Center, Geotechnical & Structures Laboratory, Vicksburg, Mississippi
2 Department of Geological Sciences, Southern Methodist University, Dallas, Texas

3D Finite Element Models of Ground Deformation and Stress Field in a Viscoelastic Medium 3D Finite Element Models of Ground Deformation and Stress Field in a Viscoelastic Medium

A 3D finite element model was used to evaluate the time dependent ground deformation and the stress change caused by a pressure source embedded in a viscoelastic medium. In volcanic areas, the presence of inhomo-geneous materials and high...
COMSOL Conference 2007, Grenoble
D. Scandura1,2, G. Currenti1, and C. Del Negro1
1Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Catania, Catania, Italy
2Dipartimento di Matematica e Informatica, Università di Catania, Catania, Italy

3D Modeling of Fracture Flow in Core Samples Using ?-CT Data 3D Modeling of Fracture Flow in Core Samples Using ?-CT Data

Knowledge on flow behavior in fractured reservoir rocks is of great interest in petroleum engineering as well as for geothermal assets. Due to the big difference of magnitude (fracture aperture: ~?m, lateral extension of reservoirs ~km),...
COMSOL Conference 2012, Milan
S. Hoyer1 , U. Exner2 , M. Voorn1 , A. Rath3
1 Department of Geodynamics and Sedimentology, University of Vienna, Austria
2 Museum of Natural History, Vienna, Austria
3 OMV ESG-D Production Geology, Vienna, Austria

3D Simulations of an Injection Test Done Into an Unsaturated Porous and Fractured Limestone 3D Simulations of an Injection Test Done Into an Unsaturated Porous and Fractured Limestone

We have developed a numerical model to represent the effect of injection test in unsaturated porous and fractured rock mass. The test was conducted at the LSBB (Laboratoire Souterrain à Bas Bruit) site close to Rustrel, Vaucluse, France...
COMSOL Conference 2012, Milan
A. Thoraval1 , Y. Guglielmi2 , F. Cappa3
1 INERIS, Nancy, France
2 CEREGE, Aix-en-Provence, France
3 GEOAZUR, Valbonne, France

Absorbing Boundary Domain for CSEM 3D Modeling Absorbing Boundary Domain for CSEM 3D Modeling

In the study, we present an efficient absorbing boundary domain technique whose main application is the 3D finite element (FE) modelling of the so-called controlled-source electromagnetic (CSEM) data, collected for the geophysical...
COMSOL Conference 2010, Paris
J. Park1 , T.I. Bjørnarå1 , and B.A. Farrelly 2
1 Norwegian Geotechnical Institute(NGI), Oslo, Norway
2 MultiField Geophysics AS, Norway

A Coulomb Stress Model to Simulate Induced Seismicity Due to Fluid Injection and Withdrawal in Deep Boreholes A Coulomb Stress Model to Simulate Induced Seismicity Due to Fluid Injection and Withdrawal in Deep Boreholes

Fluid injection and withdrawal in deep wells is a basic procedure in mining activities and deep resources exploitation, i.e. oil and gas extraction, geothermal exploitation, geothermal permeability enhancement and waste ?uid disposal. All...
COMSOL Conference 2012, Milan
G. Perillo1 , G. De Natale2 , C. Troise2 , A. Troiano2 , M.G. Di Giuseppe2 , A. Tramelli2
1 University of Naples Parthenope, Naples, Italy
2 INGV, Osservatorio Vesuviano, Naples, Italy

A Finite Element Test of the 2002-2003 Etna Eruption A Finite Element Test of the 2002-2003 Etna Eruption

Structural, morphological and ground deformation studies suggest that the eastern flank of Mt. Etna (eastern Sicily) is spreading seaward. Three contrasting models have been proposed: deep-seated spreading, shallow sliding and tectonic...
COMSOL Conference 2009, Milan
F. Pulvirenti1 2 , M. Aloisi1 , G. De Guidi2 , M. Mattia1 , and C. Monaco2
1 Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Catania, Catania, Italy
2 Dipartimento di Scienze Geologiche, Università di Catania, Catania, Italy

A Mass-consistent Atmospheric Model using FEMLAB Optimization A Mass-consistent Atmospheric Model using FEMLAB Optimization

The assurance of mass consistency in constructing 3-D atmospheric velocity fields is important when developing accurate numerical simulations. The implementation of a mass consistent wind field is typically undertaken using available...
COMSOL Conference 2005, Boston
Wang, X., Pepper, D.W.
University of Nevada, Las Vegas, Department of Mechanical Engineering, Las Vegas, NV

Analog and FEM Models of Lava Dome Dynamics Analog and FEM Models of Lava Dome Dynamics

Extrusion of highly viscous lavas that spread laterally and form lava domes in craters of large volcanoes is associated with significant volcanic hazards. Gas overpressure driven fragmentation of the lava dome or collapse and slumping of...
COMSOL Conference 2011, Boston
P. Vincent1 , and P. Zevada2
1 College of Earth, Ocean and Atmospheric Sciences, Oregon State University, Oregon
2 Dept. of Tectonics and Geodynamics, Institute of Geophysics ASCR, v.v.i., Prague, Czech Republic

Analysis of Multiphysics Problems Related to Energy Piles Analysis of Multiphysics Problems Related to Energy Piles

Energy piles transfer the mechanical loads from buildings to the ground and serve as heat exchangers. Temperature changes in the ground influence its moisture content. This paper examines the effect of soil moisture content on the shaft...
COMSOL Conference 2012, Boston
E. Evgin1 , J.A.I. Sedano 1 , Z. Fu1
1 University of Ottawa, Ottawa, ON, Canada

An Extension of Lauwerier’s Solution for Heat Flow in Saturated Porous Media An Extension of Lauwerier’s Solution for Heat Flow in Saturated Porous Media

One of the crucial topics in this century is sustainable energy. In this respect, the exploitation of geothermal energy from deep hot aquifers becomes opportune. Hence, insight is required in the heat balance of potential aquifer systems....
COMSOL Conference 2009, Milan
S. Saeid1 and F.B.J. Barends2
1 Technical University of Delft, Delft, The Netherlands
2 Deltares and TU-Delft, Delft, The Netherlands

A Numerical Simulation of Adsorption Using Non-Standard Isotherm Equations in COMSOL A Numerical Simulation of Adsorption Using Non-Standard Isotherm Equations in COMSOL

Numerical simulations of the equation of transport were performed using an adsorption isotherm equation, and a simple cubic polynomial. The 1D COMSOL implementation included solutes being injected from one face of a homogeneous, isotropic...
COMSOL Conference 2008, Boston
A. Ortiz-Tapia, D. Lopez-Falcon, M. Diaz-Viera, S. Lopez-Ramirez, and J. Mendoza-dela-Cruz
Instituto Mexicano del Petroleo, D. F., Mexico

Application of Numerical Simulation in Geotechnical Engineering Application of Numerical Simulation in Geotechnical Engineering

In this work, COMSOL Multiphysics was used to develop a model to investigate the degree of saturation in sloped terrain. The model was validated via laboratory experiments incorporating Lan’s man-made rainfall slope model test. The...
COMSOL Conference 2012, Taipei
Dr. Meen-Wah Gui1
1 Department of Civil Engineering, National Taipei University of Technology, Taipei, Taiwan

A Semplified Model for the Evolution of a Geothermal Field A Semplified Model for the Evolution of a Geothermal Field

The problem is to understand how a geothermal field can evolve from a water dominated state into a vapor dominated one. A first answer to this question is given by a simplified mathematical model of the dynamics of a geothermal field in...
COMSOL Conference 2009, Milan
L. Meacci1 , A. Farina1 , F. Rosso1 , I. Borsi1 , M. Ceseri1 , and A. Speranza1
1 Dipartimento di Matematica U. Dini, Università degli Studi di Firenze, Firenze, Italy

Benchmark Calculations with COMSOL of the Transport of Radionuclides Through Clay and Bentonite Barriers in a Geological Repository Benchmark Calculations with COMSOL of the Transport of Radionuclides Through Clay and Bentonite Barriers in a Geological Repository

A benchmark study was carried out by the Swiss Nuclear Safety Inspectorate (ENSI) in collaboration with the Laboratory for Waste Management (LES) of the Paul Scherrer Institute (PSI) in order to evaluate the capabilities of the program...
COMSOL Conference 2009, Milan
M.L. Sentís1 , F. Altorfer1 , M. Herfort1 , A. Jakob2 , G. Kosakowski2 , and S. Friedel3
1 Swiss Federal Nuclear Safety Inspectorate, Villigen, Switzerland
2 Paul Scherrer Institute, Villigen, Switzerland
3 COMSOL Multiphysics GmbH, Zürich, Switzerland

BHE Field Design by Superposition of Effects in Space and Time BHE Field Design by Superposition of Effects in Space and Time

A design method for BHE fields in the absence of groundwater flow is presented, based on the superposition of effects. The effects of any periodic heat load with a period of one year can be obtained by a weighted sum of the effects of a...
COMSOL Conference 2012, Milan
S. Lazzari1 , E. Zanchini1
1 DIENCA - University of Bologna, Bologna, Italy

Building a Complex Geological Model Using Parametric Surfaces Building a Complex Geological Model Using Parametric Surfaces

Temperature measurements of the subsurface are available due to hydrocarbon exploration in the project area, where the average drilling depth is about 2-4 km and the deepest well reaches about 8.5 km. Since the data is heavily uneven...
COMSOL Conference 2012, Milan
S. Hoyer1 , M. Bottig1 , F. Zekiri1 , G. Götzl1 , A.K. Brüstle1 , G. Schubert1 , A. Nador2
1 Geological survey of Austria, Vienna, Austria
2 Geological Institute of Hungary, Budapest, Hungary

Building a Robust Numerical Model for Mass Transport Through Complex Porous Media Building a Robust Numerical Model for Mass Transport Through Complex Porous Media

Mass transport modelling through porous media is typically characterized by complex physics and geometry. In the particular case of radionuclide transport, modelling for radioactive waste repositories, an additional level of complexity,...
COMSOL Conference 2008, Hannover
J. Perko1 , D. Mallants1 , E. Vermariën2 , and W. Cool2
1 Belgian Nuclear Research Centre (SCK-CEN), Mol, Belgium
2 Belgian Agency for Radioactive Waste and Enriched Fissile Material (ONDRAF/NIRAS), Mol, Belgium

Can Subsurface Water Flow be Sensed Magnetically? Results from Electrokinetic Volcano Simulations Can Subsurface Water Flow be Sensed Magnetically? Results from Electrokinetic Volcano Simulations

Today, geophysical exploration can provide information on the interior of volcanoes even before the edifice is mechanically destroyed by measuring physical fields at the surface and interpreting them with the help of sophisticated...
COMSOL Conference 2005, Boston
Friedel, S.
FEMLAB GmbH, Zürich

Chesapeake Bay Analysis using Time and Spatial Generalized Eigenfunctions Chesapeake Bay Analysis using Time and Spatial Generalized Eigenfunctions

A Normal Mode Analysis of the Chesapeake Bay has reached the phase of performing a time-series analysis. Prior attempts using generalized eigenfunctions obtained from COMSOL have led to extraction of power spectra using a partial domain...
COMSOL Conference 2007, Boston
K. McIlhany1 and R. Malek-Madani2
1Physics Department, United States Naval Academy, Annapolis, MD, USA
2Mathematics Department, United States Naval Academy, Annapolis, MD, USA


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