A5059263549- Rock Mechanics and Modeling
- Drilling and Well Engineering
- Hydraulic Fracturing and Reservoir Analysis
- Landslides and related hazards
- Hydrocarbon exploration and reservoir analysis
- Tunneling and Rock Mechanics
- Geotechnical and Geomechanical Engineering
- Seismic Imaging and Inversion Techniques
- Geological formations and processes
- Grouting, Rheology, and Soil Mechanics
- Geological Modeling and Analysis
- Geological Formations and Processes Exploration
- Building materials and conservation
- Mining Techniques and Economics
- Cell Image Analysis Techniques
- Enhanced Oil Recovery Techniques
- Groundwater flow and contamination studies
- Infrastructure Maintenance and Monitoring
- Geological and Geophysical Studies Worldwide
- Mineral Processing and Grinding
- Engineering Applied Research
- Integrated Water Resources Management
- Seismic Waves and Analysis
- Mining and Industrial Processes
- Geomechanics and Mining Engineering
University of Mons
2013-2024
Institute of Mining
2016-2018
Abstract As a result of increasing interest in unconventional reservoirs, wide range sedimentary systems are now being investigated with regard to petroleum applications, including various tight chalk formations. We examined variety samples from NW Europe (micritic, grainy, argillaceous, marl seam, cemented and silicified chalks) the relationships between their petrophysical properties, mechanical properties associated microtextures how diagenesis can affect these properties. A index based...
The influence of the intermediate principal stress on behaviour and mechanical properties rocks is now widely admitted [1-9]. In this study, we take all three components state into account for building modelling limiting envelopes. Therefore, a particularly convenient method representing results octahedral plane (also called deviatoric or π-plane). paper, first present automated developed envelopes from set polyaxial (true triaxial) test data. Those developments are then applied failure...
The Malogne Phosphatic chalk quarry was developed by the rooms and pillars mining method within an area of 67 ha. site is partially flooded located in close proximity to important infrastructure as railway, highway, residential houses. During after its exploitation several significant ground collapses were registered. last one, with 1.2 ha 3 m amplitude occurred 2015 nearby railway line. To assess behavior underground openings a combination situ structural measurements laboratory mechanical...
Abstract Gas shales are fine grained fissile detrital sedimentary rocks. But shale is often used as a catch-all term including different rocks with non-negligible clay minerals content which leads to typical physical-chemical characteristics. Several properties generally assessed for gas plays (TOC, porosity…). However, regarding the access reservoir, drilling into formations implies good knowledge of their mechanical and petrographic properties. As classical cores quite difficult collect...
Water content may have a crucial effect on the petrophysical and mechanical properties of high porosity rocks such as chalk. Consequently, water fluctuations significantly influence behaviour engineering structures that are constructed in chalks. It is aim this study to illustrate how elastic strength chalk can evolve considering variation using P-wave velocity analytical analyses. To ultrasonic compressional wave (VP), measurements travel time three samples subjected different were...
Rocks are polycrystalline, heterogeneous, and anisotropic media containing discontinuities that often create planes of weakness. These influence the mechanical behavior rock mass through their surface morphology, aperture, filling material. Surface morphology is generally characterized by roughness, which used as an input parameter in analytical or numerical models stability. Quantifying roughness a complex operation requires appropriate methodologies tools. Barton’s Joint Roughness...
: Abstract Beyond the fundamental identification and characterisation of faults joints in chalk, fine description fracture permeability, by means analysing roughness, preferential flow channels related tortuosity, is crucial multiple applications such as underground stability studies, tunnelling, oil gas production water injection, pollution control around contaminated zones, etc. Chalk exhibits a plastic behaviour beyond elastic limit. The shearing, potentially extensive pattern failure,...
: Abstract It is now well known that the mechanical behaviour of chalk directly governed by its moisture content. The saturation degree induces suction and influences constitutive law related parameters. Besides strict properties (strength, stiffness…), seismic (seismic velocity compression shear waves) depend on chalk. relationship between those various also influenced saturating fluid (wettability, physico-chemical interactions) structure. This paper aims to present so-far unpublished...
Summary High porosity chalks have been extensively studied over the past decades. Only recently, there has an increasing interest in understanding of low permeability chalks, forming potential unconventional reservoirs or intra-reservoir seals. In order to better understand properties those tight integrated petrographical, petrophysical and geomechanical study was carried out on a set 35 carefully selected outcrop samples, covering wide range lithotypes. The dataset gathered covers broad...