DionisosFlow

Predicting stratigraphy at regional scale for reducing the exploration risk

DionisosFlow^® is a unique industrial package for generating 4D forward stratigraphic models in under-explored areas while assessing the complex interaction between accommodation space, sediment supply and transport through a combined simulation of sedimentary processes (continental to marine siliciclastics, carbonates). DionisosFlow^® helps in delimiting:

geometry and facies of reservoirs bodies;
extension and thicknesses of seals;
distribution and nature of source rocks;
paleo-geometries of sedimentary basins.

A physically sound geo-history of sedimentary basin development including sedimentary architecture, lithological facies and paleo-bathymetry distribution through space and time is delivered.
DionisosFlow^® has been validated successfully through numerous case studies including amongst others, the Middle-East Cretaceous carbonate platform, Gulf of Mexico salt-driven tectonics province, Niger delta turbiditic system and the intra-cratonic depression in North Africa.

DionisosFlow^® has also been applied favorably for delineating subtle stratigraphic traps in mature basins.

Modeling sedimentary processes

Accounting for subsidence rate, eustasy and sediment supply, DionisosFlow^® simulates sediment erosion, transport and deposition as well as local carbonate production. Carbonate production is modeled using bathymetry, wave/drift energies and ecological controlling factors.

Sediment transport is controlled by combining river discharge and slope parameters as well as flooding and slope instability for catastrophic sedimentary processes.
Input data consists in up-to-date interpreted depth maps, subsidence maps, sea level variation data and salt deformation, if applicable.
Calibration is made against seismic facies and hard log data (NTG curves, Vshale, Gamma Ray, Resistivity).

Key benefits

Applicable in clastic, carbonate and mixed environments, from continental to deep water
Tailored for stratigraphers and sedimentologists
Seamless link with TemisFlow^TM for further multi-dimensional basin modeling
Slick & user-friendly

Uncertainty and risk analysis
Compatible with third-party applications ( such as MPath® and Of-Mod®),
Innovation through active research & development

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Simulated 3D block showing the facies distribution. Vertical exaggeration x10.

Nova Scotia Margin: Sand distribution and calibration to well data.

Facies definition in DionisosFlow from simulated properties. Environmental parameters are used to generate facies information, for instance bathymetry, wave energy, slope, sediment proportions.

Analysis of silty turbidites distribution within a given sequence: NTG (left) and total thickness in meter (right).

Typical output of a multi-realization workflow linking DionisosFlow with CourgarFlow for sensitivity and risk analysis. This map shows the degree of variation of multiple simulations, all calibrated to well data, in terms of sediment texture (less changes from a simulation to the other in green, more changes in red). This type of workflow allows quantifying the risk associated to the model such as facies prediction or thicknesses.