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See detail3D fully coupled multiphase modelling of Ekofisk reservoir
Ringlet, Clémence; Charlier, Robert ULg; Schroeder, Christian ULg et al

in Shao, Jian-Fu; Burlion, Nicolas (Eds.) Thermo-hydromechanical and chemical Coupling in Geomaterials and Applications (2008)

During reservoir production, the depletion usually induces a compaction of the reservoir layers. To enhance oil recovery, waterflooding operations are generally performed but, in the North Sea chalk ... [more ▼]

During reservoir production, the depletion usually induces a compaction of the reservoir layers. To enhance oil recovery, waterflooding operations are generally performed but, in the North Sea chalk reservoir, they have also induced an additional compaction. This latter phenomenon has a positive impact (improve the ‘Compaction drive’ oil recovery) but endangers the offshore platforms and causes huge extra costs. The coupling effects between mechanical behaviour and fluids flow are thus a key issue in petroleum engineering. Pasachalk program I & II have proposed a constitutive model (referred as Pasachalk model), where the suction is the key parameter to explain the water weakening effect. This model has been used for the modelling of waterflooding experiment on chalk plug and bi-dimensional reservoir. However, as the reservoir modelling is actually a 3D model, the purpose of this paper is to present 3D fully coupled modelling of a simplified Ekofisk reservoir during production and waterflooding phases. In order to exhibit the influence of the constitutive mechanical model, different studies are performed: increasing the complexity of the mechanical model (from an elastic model up to the Pasachalk one with suction effect). The numerical results show the influence of the mechanical law on the oil production and exhibit that only an elasto-plastic law with suction effects succeeds to reproduce compactions during both production and waterflooding. [less ▲]

Detailed reference viewed: 189 (24 ULg)
See detail3D h-phi finite element formulation for the computation of a linear transverse flux actuator
Deliège, Geoffrey ULg; Henrotte, François; Vande Sande, Hans et al

in 15th International conference on electrical machines (ICEM), Brugge, Belgium, August 25-28, 2002 (2002)

Detailed reference viewed: 21 (1 ULg)
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See detail3D h-phi finite element formulation for the computation of a linear transverse flux actuator
Deliège, Geoffrey ULg; Henrotte, François; Vande Sande, Hans et al

in COMPEL (2003), 22(4), 1077-1088

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See detail3D historical models: the case studies of Liege and Nantes
Billen, Roland ULg; Carré, Cyril ULg; Delfosse, Vincent ULg et al

in Billen, Roland; Caglioni, Matteo; Marina, Ognen (Eds.) et al 3D issues in urban and environmental systems (2012)

Detailed reference viewed: 390 (25 ULg)
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See detail3D image analysis characterization of dried banana
Léonard, Angélique ULg; Devahastin, Sakamon; Blacher, Silvia ULg

Conference (2007, February)

Detailed reference viewed: 23 (0 ULg)
See detail3D image analysis of electron tomograms of clay/rubber nanocomposites
Gommes, Cédric ULg; Bons, Anton-Jan; BLACHER, Silvia ULg

Scientific conference (2006, September)

Detailed reference viewed: 2 (0 ULg)
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See detail3D image analysis of electron tomograms of clay/rubber nanocomposites
Gommes, Cédric ULg; Bons, A-J; BLACHER, Silvia ULg

Conference (2007, May)

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See detail3D Imaging of individual particles : a review
Pirard, Eric ULg

in Image Analysis and Stereology (2012), 31(2), 65-77

In recent years, impressive progress has been made in digital imaging and in particular in three dimensional visualisation and analysis of objects. This paper reviews the most recent literature on three ... [more ▼]

In recent years, impressive progress has been made in digital imaging and in particular in three dimensional visualisation and analysis of objects. This paper reviews the most recent literature on three dimensional imaging with a special attention to particulate systems analysis. After an introduction recalling some important concepts in spatial sampling and digital imaging, the paper reviews a series of techniques with a clear distinction between the surfometric and volumetric principles. The literature review is as broad as possible covering materials science as well as biology while keeping an eye on emerging technologies in optics and physics. The paper should be of interest to any scientist trying to picture particles in 3D with the best possible resolution for accurate size and shape estimation. Though techniques are adequate for nanoscopic and microscopic particles, no special size limit has been considered while compiling the review. [less ▲]

Detailed reference viewed: 33 (1 ULg)
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See detail3D imaging of reactive distillation packings with a new high energy x-ray tomograph
Toye, Dominique ULg; Abdullah, J. D.; Crine, Michel ULg et al

in Jong, A.; Takei, M.; William, R. A. (Eds.) et al Proceedings of 4th World Congress in Industrial Process Tomography (WCIPT4), Aizu, Japan, 5-8 septembre 2005 (2005)

Detailed reference viewed: 29 (8 ULg)
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See detail3D information is valuable for the detection of humans in video streams
Pierard, Sébastien ULg; Lejeune, Antoine ULg; Van Droogenbroeck, Marc ULg

in 3D Stereo Media (2010, December)

In this paper, we propose a technique based on 3D information (also called depth or range) for the detection of humans. First, a background subtraction technique operates to detect the silhouettes of ... [more ▼]

In this paper, we propose a technique based on 3D information (also called depth or range) for the detection of humans. First, a background subtraction technique operates to detect the silhouettes of humans and objects moving in the scene. Then, a machine learning algorithm is used to predict if a silhouette annotated with depth matches a human silhouette or not. The complete method is designed to cope with defects introduced during the segmentation step. Results, obtained on computer generated data, show that 3D depth data is a valuable information for detecting humans in that it improves over techniques based on binary silhouettes. In our experiments, we have reached an accuracy of 99.9% thanks to the depth information. [less ▲]

Detailed reference viewed: 125 (24 ULg)
See detail3D issues in urban and environmental systems
Billen, Roland ULg; Caglioni, Matheo; Marina, Ognen et al

Book published by Società Editrice Esculapio Srl (2012)

Detailed reference viewed: 134 (10 ULg)
See detailA 3D model of ocean biogeochemical cycles and climate sensitivity studies
Mouchet, Anne ULg

Doctoral thesis (2011)

Detailed reference viewed: 45 (10 ULg)
See detailA 3D model of the general circulation for the Western Mediterranean Sea.
Nihoul, Jacques ULg; Djenidi, Salim ULg; Clément, Francis et al

in Terra Cognita (1987), 7(2-3), 545

Detailed reference viewed: 13 (2 ULg)
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See detail3D Modeling of Thin Resistive Sheets in the Discontinuous Galerkin Method for Transient Scattering Analysis
Boubekeur, Mohamed; Kameni, Abelin; Bernard, Laurent et al

in Proceedings of the 19th Conference on the Computation of Electromagnetic Fields (COMPUMAG 2013) (2013, July 03)

This papers presents a modeling of thin resistive sheets. An interface condition is used to avoid the fine mesh. The electromagnetic fields are computed with a time domain Discontinuous Galerkin method in ... [more ▼]

This papers presents a modeling of thin resistive sheets. An interface condition is used to avoid the fine mesh. The electromagnetic fields are computed with a time domain Discontinuous Galerkin method in order to evaluate the shielding effectiveness. A 3D cavity is treated to illustrate the efficiency of the condition. [less ▲]

Detailed reference viewed: 32 (5 ULg)
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See detail3D Modelling of the Black Sea Ecosystem
Capet, Arthur ULg; Grégoire, Marilaure ULg

Conference (2011, April)

Detailed reference viewed: 12 (7 ULg)
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See detail3D modelling of the Black Sea ecosystem
Capet, Arthur ULg; Beckers, Jean-Marie ULg; Joassin, Pascal et al

Poster (2009, April 24)

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See detail3D Modelling of the Black Sea northwestern Shelf Ecosystem
Capet, Arthur ULg; Grégoire, Marilaure ULg

Conference (2010, May 14)

Some validation procedures are presented concerning the physicis and the biology, as well as the decomposition of the oxygen cycle in its different components. The role of the Sevastopol eddy of retaining ... [more ▼]

Some validation procedures are presented concerning the physicis and the biology, as well as the decomposition of the oxygen cycle in its different components. The role of the Sevastopol eddy of retaining POM in the Crimea peninsula causing intense bacterial oxygen consumption is evidenced. [less ▲]

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See detail3D Modelling of the Black Sea northwestern shelf ecosystem : Benthic Fluxes
Capet, Arthur ULg; Grégoire, Marilaure ULg

Scientific conference (2010, October)

Detailed reference viewed: 10 (6 ULg)