linkedInRongier2017Cageo

Simulating realistic sedimentary bodies while conditioning all the available data is a major topic of research. In this new paper published in Computers & Geosciences journal, we present a new method to simulate the channel morphologies resulting from the deposition processes. It relies on a formal grammar system, the Lindenmayer system, or L-system.  Attraction and repulsion constraints enable to condition various data types, from well data to probability cubes or a confinement. The application to a synthetic case highlights the method's ability to manage various data while preserving at best the channel morphology.

The complete paper can be found here for free download.

Rongier G., Collon P., Renard P. (2017). Stochastic simulation of channelized sedimentary bodies using a constrained L-system. Computers & Geosciences, 105, 158–168. DOI: 10.1016/j.cageo.2017.05.006

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In this new paper published in Geomorphology journal, we (i) present and discuss a set of 21 metrics to characterize both the geometry and the topology of karstic networks, and (ii) to study their properties and their usefulness based on a set of more than 30 actual karsts mapped by speleologists. This data set includes some of the largest explored cave systems in the world and represents a broad range of geological and speleogenetic conditions allowing us to test the proposed metrics, their variability, and their usefulness for the discrimination of different morphologies.

The complete paper can be found here for free download.

Collon P., Bernasconi D., Vuilleumier C., Renard P. (2017). Statistical metrics for the characterization of karst network geometry and topology. Geomorphology, 283, 122–142. DOI: 10.1016/j.geomorph.2017.01.034

LinkedIn Rongier2017MarineP

In this new paper published in Marine and Petroleum Geology journal, (i) we propose a geometrical and descriptive approach to stochastically control the channel stacking patterns; (ii) we demonstrate trhrough quantitative metrics that this method makes it possible to control the connectivity between the channels by adjusting the geometry of the migrating areas.

The complete paper can be found here for free download.

Rongier G., Collon P., Renard P. (2017). A geostatistical approach to the simulation of stacked channels. Marine and Petroleum Geology, 82, 318–335. DOI: 10.1016/j.marpetgeo.2017.01.027

Laurent 2016 epsl
We are please to announce our new publication in Earth and Planetary Science Letters.
Download the paper here (free access until the 21st of December)!

On March 15th 2016, Guillaume Rongier defended his PhD entitled connectivity of channelized sedimentary systems: strategies for analysis and simulation in subsurface modeling (Connectivité de corps sédimentaires chenalisés : stratégies d'analyse et de simulation en modélisation de subsurface).

Congratulations Dr. Rongier!

We are pleased to announce a mini-workshop on geology and meshing, April 1st, 2016.Slice in a 3D mesh of the Corbieres model

New numerical schemes to simulate hydrodynamic, geomechanical and seismological processes have a great potential to handle geometrically complex geological features. Unlocking this potential calls for appropriate meshing algorithms which can adapt to geological heterogeneities while meeting numerical requirements. On the occasion of the PhD defense of Arnaud Botella, this workshop will provide opportunities to discuss about recent advances, trends and challenges in this field. 

You can now watch the PhD defense and the Q&A (in French) of Arnaud Botella