A5013824559- Hydrocarbon exploration and reservoir analysis
- earthquake and tectonic studies
- Geological and Geochemical Analysis
- Hydraulic Fracturing and Reservoir Analysis
- Rock Mechanics and Modeling
- Seismic Imaging and Inversion Techniques
- Geological formations and processes
- Drilling and Well Engineering
- Landslides and related hazards
- Methane Hydrates and Related Phenomena
- Geological and Geophysical Studies
- Soil and Unsaturated Flow
- Geological Studies and Exploration
- Geology and Paleoclimatology Research
- Geotechnical and Geomechanical Engineering
- Enhanced Oil Recovery Techniques
- CO2 Sequestration and Geologic Interactions
- Geological Modeling and Analysis
- High-pressure geophysics and materials
- Geological Formations and Processes Exploration
- Geochemistry and Geologic Mapping
- Seismic Waves and Analysis
- Geological and Geophysical Studies Worldwide
- Reservoir Engineering and Simulation Methods
- Solidification and crystal growth phenomena
RWTH Aachen University
2016-2025
Maastricht University
2023
German University of Technology
2011-2020
Urology Team
2020
Mineral Resources
2015-2019
Microstructure and Pores
2019
Federal Institute for Geosciences and Natural Resources
2017
Sols, Solides, Structures, Risques
2014
Westfälische Hochschule
2007
Johannes Gutenberg University Mainz
2005
The swelling of clay minerals on contact with an aqueous solution can produce strong adverse effects in the exploration and production gas oil. Molecular dynamics Monte Carlo simulations were used to study mechanism sodium-montmorillonite. showed that abundant mineral has four stable states at basal spacings 9.7, 12.0, 15.5, 18.3 angstroms, respectively. amount locations sodium-montmorillonite are good quantitative agreement experimental data.
Abstract Fracture pattern development has been a challenging area of research in the Earth sciences for more than 100 years. Much learned about spatial and temporal complexity inherent to these systems, but severe challenges remain. Future advances will require new approaches. Chemical processes play larger role opening‐mode fracture hitherto appreciated. This review examines relationships between mechanical geochemical that influence patterns recorded natural settings. For fractures formed...
Abstract Mudrocks are effective top seals for hydrocarbon accumulations because they possess very low permeabilities, high capillary entry pressures, and often laterally continuous basin-wide. For leakage through the seal to take place, an additional mechanism must provide enhanced permeability in mudrocks. Tectonically induced, dilatant faulting fracturing brittle rocks is such a mechanism. The effectiveness of mudrocks as may be compromised by number other factors, tectonic fault...
The morphology of pore space has a strong effect on mechanical and transport properties mudrocks clay-rich fault gouge, but its characterization been mostly indirect.We report study Boom clay from proposed disposal site radioactive waste (Mol site, Belgium) using high resolution SEM at cryogenic temperature, with ion beam cross-sectioning to prepare smooth, damage free surfaces.Pores commonly have crack-like tips, preferred orientation parallel bedding power law size distribution.We define...
Clay smear is a collection of fault processes and resulting structures that form when normal faults deform layered sedimentary sections. These elusive have attracted deep interest from researchers interested in subsurface fluid flow, particularly the oil gas industry. In four decades since association between clay-smear accumulations was introduced, there has been extensive research into create clay effects on flow. We undertake critical review literature associated with outcrop studies,...
Abstract Study of the pore space in mudstones by mercury intrusion porosimetry is a common but indirect technique and it not clear which part actually filled with mercury. We studied samples from Opalinus Clay, Boom Haynesville Shale, Bossier Shale Formations using Wood's metal injection at 316 MPa, followed novel ion beam polishing high‐resolution scanning electron microscopy. This method allowed us to analyze high resolution parts rock are intruded liquid alloy mm cm scale. Results Clay...
Abstract Direct observations of oil‐water‐rock contacts are key for improving our understanding multiphase flow phenomena in mixed‐wet reservoir rocks. In this study we imaged pore‐scale fluid‐fluid‐solid sandstone with nanometer resolution using cryogenic broad ion‐beam polishing combination scanning electron microscopy and phase identification by energy‐dispersive X‐ray analysis. We observed, as expected, the nonwetting oil separated from quartz surfaces a thin brine film, but also direct...