Three-dimensional modeling is a common exploration tool used in oil & gas industry. It allows the... more Three-dimensional modeling is a common exploration tool used in oil & gas industry. It allows the reconstruction of the deformation history of a sedimentary basin. 3D structural models describe the geometry and layout of rocks units in three-dimensional space, honoring available observations, measurements, seismic interpretation and geological concepts. On the other hand, restoration is one the existing techniques used to validate the structural interpretation of a defining geological unit if the model is geometrically consistent. In the oil industry this technique is used to reduce the exploration risks validating the model. The Sicilian Fold-and-Thrust Belt represents a structurally complex area where it is possible to observe variation of shortening, exhumation, syn-tectonic sedimentation and structural style along strike. 3D model reconstruction in such a complex area can represent a real challenge linked to unclear or incomplete data (2D onshore seismic lines) and also because ...
Conjugate passive margins of the southern segment of the South Atlantic are characterized not onl... more Conjugate passive margins of the southern segment of the South Atlantic are characterized not only by various deformation patterns and unequal width of the continent-ocean transition zones but also by different structure of adjacent continents (for example, the crustal thickness of South America is 30 km whereas that of Africa is 40 km). Lithosphere-scale analogue models and 2D thermo-mechanical numerical experiments handling complex rheological behaviour and structure are used to investigate the rift evolution in the context of laterally heterogeneous continental lithosphere consisting of two equally sized segments with different rheological properties.
Basin and petroleum system modeling tools can aid in assessing unconventional resources. The pres... more Basin and petroleum system modeling tools can aid in assessing unconventional resources. The present study gives an overview of the petroleum system of the Western Canada Sedimentary Basin (WCSB) through the modeling of a representative regional geologic cross section. A special emphasis is given on the Triassic Montney and Doig formations, which host the largest known unconventional play in Canada. Our model simulated the large diversity of plays that are found in the WCSB: self-sourced and tight reservoirs as well as conventional reservoirs with conventional and biodegraded oils. Results of this study strengthen the hypothesis of long-distance (>100 km [>62 mi]) migration for a major part of the hydrocarbons generated by the Gordondale and Doig Phosphate source rocks from the western to the eastern part of the basin. They also show that hydrocarbons generated within the Montney formation did not migrate far from their source rock due to very low permeabilities. Although the ...
Les deux parties qui constituent ce memoire de these, traitent suivant deux approches complementa... more Les deux parties qui constituent ce memoire de these, traitent suivant deux approches complementaires, des problemes d’analyse de la deformation cassante en geologie structurale, lorsque celle-ci se manifeste principalement par des glissements sur des plans de fractures preexistants. La premiere partie est consacree a l’analyse numerique de population de failles striees. Une propriete du modele mecanique d’E. Carey et B. Brunier, observable sur certains echantillonnages, permet de determiner graphiquement les directions principales et le rapport de forme d’une deviateur de contraintes. L’introduction de facteurs de ponderation dans le processus iteratif de E. Carey permet egalement d’ameliorer l’analyse numerique de population de plans de failles striees heterogenes. Les limites d’application du modele d’analyse des failles striees sont etudiees en considerant l’aspect mecanique de la rupture par glissement. L’introduction d’une loi empirique de type Mohr-Coulomb vient completer l’a...
The structural deformation and the petroleum system of the southern Apennines thrust belt (SATB) ... more The structural deformation and the petroleum system of the southern Apennines thrust belt (SATB) are studied along a regional cross section traversing the Monte Alpi–Tempa Rossa fields. The SATB is interpreted as a system of three major structural blocks incorporating the basement and the sediments up to the Apulian platform deposits beneath an allochthonous complex. The Thrustpack software has been used to reconstruct the successive geometries and their progressive burial under foredeep sediments and the allochthonous complex. The bottom of the Apulian platform and the basement are involved in the deformation, and the thickness of the Permian interval, drilled in the foreland, is extended regionally. The timing of the deformation is constrained by the ages of the Pliocene foredeep sediments drilled on top of the Apulian platform. This record was also instrumental to propose a flexure scenario of the migrating foredeep-forebulge system, in which the slope of the topography had to be...
About 97% of the civil plane is constructed from Aluminum alloys inter alia, the removable arm of... more About 97% of the civil plane is constructed from Aluminum alloys inter alia, the removable arm of the landing gear which is making from galvanized steel (GS). Despite its strength and high performance against alkaline corrosion, the surface aspect of the GS was highly porous due to the manufacturing process. In this study, we report the first successful electroplated coating obtained under ultrasonic waves from a continuous-flow fluid containing the precursor metallic cations on relatively big pieces of aeronautic GS. Two main challenges have risen in this work: 1) Homogenous electrodeposition on a porous surface and 2) succeed a protection barrier against corrosion by electroplating a more noble alloy (NiCr) on a less noble layer (Zn). The comparison of GS and coated GS shows that the mixed nanoalloy covers the totality of the active surface of the sample. The optimized finished coating contains 64 % of Ni, 23 % of Cr and 11 % of nanoparticles TiO2. The rest is defined as impurities from the GS and/or from the main electrolyte. According to the laser profilometer measurements, 98 % of pores have been crammed. Morphology, crystallinity and chemical bonds nature into the alloy have been also deeply investigated using SEM, XRD and XPS techniques, respectively. The corrosion resistance has been also tested under salty spray (̴ 3,5 % NaCl).
Three-dimensional modeling is a common exploration tool used in oil & gas industry. It allows the... more Three-dimensional modeling is a common exploration tool used in oil & gas industry. It allows the reconstruction of the deformation history of a sedimentary basin. 3D structural models describe the geometry and layout of rocks units in three-dimensional space, honoring available observations, measurements, seismic interpretation and geological concepts. On the other hand, restoration is one the existing techniques used to validate the structural interpretation of a defining geological unit if the model is geometrically consistent. In the oil industry this technique is used to reduce the exploration risks validating the model. The Sicilian Fold-and-Thrust Belt represents a structurally complex area where it is possible to observe variation of shortening, exhumation, syn-tectonic sedimentation and structural style along strike. 3D model reconstruction in such a complex area can represent a real challenge linked to unclear or incomplete data (2D onshore seismic lines) and also because ...
Conjugate passive margins of the southern segment of the South Atlantic are characterized not onl... more Conjugate passive margins of the southern segment of the South Atlantic are characterized not only by various deformation patterns and unequal width of the continent-ocean transition zones but also by different structure of adjacent continents (for example, the crustal thickness of South America is 30 km whereas that of Africa is 40 km). Lithosphere-scale analogue models and 2D thermo-mechanical numerical experiments handling complex rheological behaviour and structure are used to investigate the rift evolution in the context of laterally heterogeneous continental lithosphere consisting of two equally sized segments with different rheological properties.
Basin and petroleum system modeling tools can aid in assessing unconventional resources. The pres... more Basin and petroleum system modeling tools can aid in assessing unconventional resources. The present study gives an overview of the petroleum system of the Western Canada Sedimentary Basin (WCSB) through the modeling of a representative regional geologic cross section. A special emphasis is given on the Triassic Montney and Doig formations, which host the largest known unconventional play in Canada. Our model simulated the large diversity of plays that are found in the WCSB: self-sourced and tight reservoirs as well as conventional reservoirs with conventional and biodegraded oils. Results of this study strengthen the hypothesis of long-distance (>100 km [>62 mi]) migration for a major part of the hydrocarbons generated by the Gordondale and Doig Phosphate source rocks from the western to the eastern part of the basin. They also show that hydrocarbons generated within the Montney formation did not migrate far from their source rock due to very low permeabilities. Although the ...
Les deux parties qui constituent ce memoire de these, traitent suivant deux approches complementa... more Les deux parties qui constituent ce memoire de these, traitent suivant deux approches complementaires, des problemes d’analyse de la deformation cassante en geologie structurale, lorsque celle-ci se manifeste principalement par des glissements sur des plans de fractures preexistants. La premiere partie est consacree a l’analyse numerique de population de failles striees. Une propriete du modele mecanique d’E. Carey et B. Brunier, observable sur certains echantillonnages, permet de determiner graphiquement les directions principales et le rapport de forme d’une deviateur de contraintes. L’introduction de facteurs de ponderation dans le processus iteratif de E. Carey permet egalement d’ameliorer l’analyse numerique de population de plans de failles striees heterogenes. Les limites d’application du modele d’analyse des failles striees sont etudiees en considerant l’aspect mecanique de la rupture par glissement. L’introduction d’une loi empirique de type Mohr-Coulomb vient completer l’a...
The structural deformation and the petroleum system of the southern Apennines thrust belt (SATB) ... more The structural deformation and the petroleum system of the southern Apennines thrust belt (SATB) are studied along a regional cross section traversing the Monte Alpi–Tempa Rossa fields. The SATB is interpreted as a system of three major structural blocks incorporating the basement and the sediments up to the Apulian platform deposits beneath an allochthonous complex. The Thrustpack software has been used to reconstruct the successive geometries and their progressive burial under foredeep sediments and the allochthonous complex. The bottom of the Apulian platform and the basement are involved in the deformation, and the thickness of the Permian interval, drilled in the foreland, is extended regionally. The timing of the deformation is constrained by the ages of the Pliocene foredeep sediments drilled on top of the Apulian platform. This record was also instrumental to propose a flexure scenario of the migrating foredeep-forebulge system, in which the slope of the topography had to be...
About 97% of the civil plane is constructed from Aluminum alloys inter alia, the removable arm of... more About 97% of the civil plane is constructed from Aluminum alloys inter alia, the removable arm of the landing gear which is making from galvanized steel (GS). Despite its strength and high performance against alkaline corrosion, the surface aspect of the GS was highly porous due to the manufacturing process. In this study, we report the first successful electroplated coating obtained under ultrasonic waves from a continuous-flow fluid containing the precursor metallic cations on relatively big pieces of aeronautic GS. Two main challenges have risen in this work: 1) Homogenous electrodeposition on a porous surface and 2) succeed a protection barrier against corrosion by electroplating a more noble alloy (NiCr) on a less noble layer (Zn). The comparison of GS and coated GS shows that the mixed nanoalloy covers the totality of the active surface of the sample. The optimized finished coating contains 64 % of Ni, 23 % of Cr and 11 % of nanoparticles TiO2. The rest is defined as impurities from the GS and/or from the main electrolyte. According to the laser profilometer measurements, 98 % of pores have been crammed. Morphology, crystallinity and chemical bonds nature into the alloy have been also deeply investigated using SEM, XRD and XPS techniques, respectively. The corrosion resistance has been also tested under salty spray (̴ 3,5 % NaCl).
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Papers by William Sassi