May this holiday season be filled with love, friendship, happiness, sharing …

Best wishes to you!


We are very pleased to announce Nicolas' PhD defense on March 05, 2020 in ENSG, Amphi G at 2:00 pm

Stochastic seismic interpretation of salt bodies:

detection, sampling and impact on imaging



salt model 3d

Congratulations to Dr. Gabriel Godefroy who sucessfully defended his PhD on kinematic and stochastic fault modeling on the 29th of March 2018! You can have a look at the presentation here

 Gabriel's PhD thesis is available, and you ay also want to check out his Mathematical Geoscience paper and Interpretation paper.

Image these gabi.

Each year, the French Académie des Sciences awards nearly 80 prizes covering all scientific fields. This year, it honoured 3 researchers from Université de Lorraine were recipients of Academy Awards on 15 October 2019 under the dome of the Institut de France, including Guillaume Caumon, awarded the “Michel Gouilloud-Schlumberger” Prize.



guillaume caumon copyright simon cassanas



SIGMA is a research library developed by the RING team.The version uploaded for this training has programs for acoustic modeling, extended imaging, and structural interpolation.

Annonce 30th Anniversary 2019 RING Meeting

The 2019 RING Meeting celebrates the 30th anniversary of the Consortium !

In the introduction below, we propose an overview of this year's program blended with an historical perspective of some significant Consortium achievements.

We are very pleased to announce two PhD defenses and a small workshop on geophysics and structural modeling on April 24 and 25, 2019.

- April 24, 13h (ENSG, Amphi G): PhD Defense of Julien Renaudeau: Continuous formulation of implicit structural modeling discretized with mesh reduction methods.

- April 25, 9h (ENSG, Amphi H): Geophysics and structural modeling workshop

  • 9h Sophie Viseur (CEREGE, Aix-Marseille Universite): Extra-terrestrial modeling
  • 9h30 Florian Wellmann (RWTH Aachen): Quantification of uncertainties in geological models
  • 10h Laetitia Le Pourhiet (Université Pierre et Marie Curie): 3D thermo-mechanical forward modelling of long term tectonic processes
  • 10h30 Break
  • 10h45 Alexandrine Gesret (Mines Paris Tech): Uncertainty estimation by stochastic seismic tomography
  • 11h15 Pierre Thore (Total): On time-laspe seismic and history matching.
  • 11h45 Thomas Bohlen (KIT): Applications of Full Waveform Inversion at different spatial scales [PDF]

- April 25, 14h30 (ENSG, Amphi H): PhD Defense of Modeste Irakarama: Towards Reducing Structural Interpretation Uncertainties Using Seismic Data.

The RING team wishes you a merry holiday season, and a happy and peaceful year 2018 !

RING's (salt) Chrismas Tree. Happy Holiday Season!

This RING Christmas Tree was generated with SKUA-GOCAD using the stochastic method of Nicolas Clausolles, see Nicolas's IAMG 2018 award on salt modeling.

Discover or rediscover the introduction to the 2018 RING Meeting.

All papers, presentations and records are at your disposal in the Sponsor’s Corner.

Congratulations to Modeste Irakarama who won the best student oral presentation, about the interpolation of geological structures, entitled: Finite Difference Implicit Structural Modelling.

The RING Team is pleased to present you the Newsletter for April 2018.

Discover our exclusive new display !

In this issue, you will:

  • Get acquainted with our new Team members
  • Follow all the Team during upcoming conferences and trips
  • Be focused on RINGMesh
  • Have all the necessary information about 2018 RING Meeting
  • And many other things...



The RING teams wishes you an excellent holliday season, and a happy and peaceful year 2018 !


The animation shows possible grid geometries corresponding to stochastic correlations of the well data. For more detail, see Uncertainty management in stratigraphic well correlation and stratigraphic architectures: A training-based method.

In 1994, the Society of Petroleum Engineers gave L. Wietzerbin and Jean-Laurent Mallet the SPE Computer Application Best Paper Award for their article entitled Parameterization of Complex 3D Heterogeneities: A New CAD Approach. This paper proposed the Boolean simulation of channels and lobes represented as a smoothed backbone curve and associated cross-sections (this object is still known as GShape or Channel by Gocad users). That year, the average (inflation-adjusted) oil price was 26$ per barrel (source: 23 years later, the spot oil price is unfortunately much lower than most of us would like it to be, but it is still close to two times the 1994 amount! Both then and now, such descriptions of geological objects are highly relevant not only for thrill of advancing the science of quantitative geology, but also to optimize reservoir recovery. As a matter of fact, the paper by Wietzerbin and Mallet still reflects some essential characteristics of our research for integrative numerical geology: to improve the ability of numerical models to accurately forecast subsurface behavior, we need appropriate geometrical and petrophysical parameterizations of geological objects. Among the main evolutions since this seminal paper, we can mention the emergence of new ways to consider, explicitly or implicitly, the time dimension and the physics to integrate various types of subsurface data while considering uncertainties.

This meeting will, as each year, showcase some recent advances made by the RING team in addressing these difficult challenges.