A5072624282- Hydraulic Fracturing and Reservoir Analysis
- Drilling and Well Engineering
- CO2 Sequestration and Geologic Interactions
- Reservoir Engineering and Simulation Methods
- Rock Mechanics and Modeling
- Seismic Imaging and Inversion Techniques
- Tunneling and Rock Mechanics
- Hydrocarbon exploration and reservoir analysis
- Geotechnical and Geomechanical Engineering
- Methane Hydrates and Related Phenomena
- Granular flow and fluidized beds
- Geological formations and processes
- Enhanced Oil Recovery Techniques
- Concrete Corrosion and Durability
- Oil and Gas Production Techniques
- Hydrology and Sediment Transport Processes
- Smart Materials for Construction
- Soil and Unsaturated Flow
- Seismology and Earthquake Studies
- Fluid Dynamics and Turbulent Flows
- Geological Modeling and Analysis
- NMR spectroscopy and applications
- Seismic Waves and Analysis
- Carbon Dioxide Capture Technologies
- Advanced X-ray Imaging Techniques
SINTEF
2015-2024
SINTEF Industry
2018-2024
Schlumberger (Norway)
2001
Université Paris Cité
1992-1998
Laboratoire d'Hydrodynamique
1992-1998
Centre National de la Recherche Scientifique
1995-1998
In carbon storage activities, and in shale oil gas extraction (SOGE) with dioxide (CO2) as stimulation fluid, CO2 comes into contact rock its pore fluid. As a reactive the injected displays large potential to modify shale’s chemical, physical, mechanical properties, which need be well studied documented. The state of art on shale–CO2 interactions published several review articles does not exhaust all aspects these interactions, such changes mechanical, petrophysical, or petrochemical...
The underground hydrogen storage (UHS) capacities of shut down oil and gas (O&G) fields along the Norwegian continental shelf (NCS) are evaluated based on publicly available geological hydrocarbon production data. Thermodynamic equilibrium geochemical models used to describe contamination hydrogen, loss changes in mineralogy. spectrum black retrograde remarkably similar. Geochemical suggest limited reactive mineral phases meter-scale diffusion into caprock. However, reactions between...
The concept of geological CO2 storage relies on the capability site to contain gas within its intended location. Leakage a large scale will render capture, transport and injection processes futile. Flow paths enabling stored re-enter atmosphere can either be caused by conditions (e.g. failed caprock integrity) or it related integrity wells that penetrate reservoir. along wells, which occur through cement porosity, cracks in casing-cement cement- formation interfaces, has been appointed "weak...
Experiments on shale specimens targeted creep deformation in order to investigate whether this mechanism could be relied upon close fractures and stop leakage near injection wells. Uniaxial compression tests were conducted with stress ramp up paused expected failure of the tested additional deformation, interpreted as initial was logged. The repeated samples exposed HCl acid solutions, simulating pH conditions well exposure injected CO2. purpose compare propensity material after possible...
Abstract The Draupne shale is a rock formation functioning as overburden for gas reservoirs in the Norwegian Sea and potentially caprock future CO 2 storage locations well. In this paper, was exposed to several fluids: gas, supercritical , dissolved brine, well brine dry air. motivation exposure tests investigate whether injected reservoir coming into contact with could change caprock’s mechanical properties increase risk leakage of stored . addition, systematic study will provide more...
Abstract In order to improve drilling mud design cater for specific well situations, a more comprehensive knowledge and understanding of filter cake failure is needed. This paper describes experimental techniques aimed at directly probing the mechanical properties cakes, without having take into account artefacts due fluid flow in substrate. The use rheometers allows us determine shear yield stress dynamic modulii cakes grown on paper. A new scraping technique measures strength moisture...
Abstract A very challenging HPHT well has been drilled utilizing an advanced ECD & Temperature, Well Stability and Geo Pressure Management System including real time simulations, early diagnosis of upcoming problems simulations using state-of-the art models. The uses all available drilling data (surface downhole) in combination with modelling to monitor optimize the process. This information is used visualize wellbore as simulation results 3D time. It implemented Total E&P Norge TASC...
Abstract A very challenging HPHT well has been drilled utilizing an advanced ECD Management System including real time simulations, early diagnosis of upcoming problems, and simulations using state-of-the art models. The uses all available drilling data (surface downhole) in combination with modeling to monitor optimize the process. This information is used visualize wellbore 3D time. It implemented Total E&P Norge TASC (Total Activities Support Collaboration) Center Norway. system...
Abstract We present here a simplified, analytical 2D model of sand production. Computing sanding for different failed zone geometries allows us to put lower and higher bounds on expected produced mass, given stress fluid flow. assume plastified rock around the borehole well- developed shear bands. use Bagnold particle flow equation, coupled increasing permeability porosity in zone. The calculated mass compares favorably laboratory hollow cylinder test measurements.
Summary An offshore gas field has been producing sand for a few years. Sand production closely monitored through acoustic flowline devices and sand-collection system installed on the platforms. Observation of triggered evaluation whether to install surface desanders or complete future wells with downhole control. This requires prediction sanding rate over reservoir life. The possibility providing control existing was also evaluated in separate studies. Predicting rate, particularly fields,...
Shales have a complex mineralogy with structural features spanning several length scales, making them notoriously difficult to fully understand. Conventional attenuation-based X-ray computed tomography (CT) measures density differences, which, owing the heterogeneity and sub-resolution in shales, makes reliable interpretation of shale images challenging task. CT based on diffraction (XRD-CT), rather than intensity attenuation, is becoming well established technique for non-destructive 3D...
The study of the flow a Newtonian fluid in porous medium and dispersion markers has been subject numerous works after Taylor Saffman. Characteristics non-Newtonian have not investigated as much. We attempt to generalize Saffman modelling case Bingham fluid. is assumed be statistically homogeneous isotropic. Dispersion completely described by lateral longitudinal coefficient. Pores are represented monodispersed capillary tubes with an isotropic angular distribution.
Summary A digitized workflow from predrill pore-pressure modeling with a Monte Carlo approach until update of the pressure prognosis while drilling (for example) sonic or resistivity data is described. The has potential to reduce uncertainty in predicted mud-weight window ahead bit. For 3D modeling, basin software used, where compartments study area are defined by faults interpreted seismic. Pressure generation and dissipation calculated for over millions years, as was subsiding compaction...
Chemical reactions with reservoir fluids and geology related in-situ stress changes may cause damages to cement sealing material in plugged abandoned oil, gas CO2 wells. To avoid leakages, a legitimate monitoring technique is needed that could allow for early warning case such occur. In this paper, we test the utility of oil well conductive filler sensing changes. end, have measured resistance response Portland G—oil carbon nanofibers (CNF) axial load during uniaxial compressive strength...
Carbon capture and storage (CCS) by geological sequestration comprises a permeable formation (reservoir) for CO2 topped an impermeable (caprock). Time-lapse (4D) seismic is used to map movement in the subsurface: migration into caprock might change its properties thus impact integrity. Simultaneous forced-oscillation pulse-transmission measurements are combined quantify Young’s modulus Poisson’s ratio as well P- S-wave velocity changes absence presence of at constant ultrasonic frequencies....
Understanding the mechanical behavior of rocks is crucial in subsurface activities, including storage carbon dioxide and hydrogen gases, which both rely on shale caprocks as potential sealing barriers. Several current large-scale initiatives focus North Sea aquifers. The Draupne Formation contains a series layers interbedded with sandstone layers, overall thickness varies range from tens to hundreds meters. Injection into underlying reservoirs leads changes surrounding stress field, can...