Getting rid of stratigraphic grids: the GeoChron model

Jean-Laurent Mallet and Rémi Moyen and Tobias Frank and Bruno Leflon and Jean-Jacques Royer. ( 2004 )
in: 24th gOcad Meeting, ASGA

Abstract

The implementation of any geostatistical method requires the use of a parametric coordinate system (u, v,t) such that (u, v) corresponds to “horizontal” curvilinear coordinates tangent to the horizons while (t) corresponds to the “vertical” curvilinear axis approximately orthogonal to the horizons. So far, common practice consists in covering the geological domain with a “structured stratigraphic grid” and then to use the (i, j, k) indexes as a sampling of the (u, v,t) coordinates. In this article, we propose a completely different approach based on the recently introduced “GeoChron” model where the (u, v,t) parameterization of the geological space is performed directly without building any stratigraphic grid. The advantage of such an approach is that the (u, v,t) parameterization can always be constructed independently of the complexity of the fault network. Moreover, this approach provides a solution for populating unstructured grids with polyhedral cells.

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    BibTeX Reference

    @inproceedings{MalletRM2004,
 abstract = { The implementation of any geostatistical method requires the use of a parametric coordinate system (u, v,t) such that (u, v) corresponds to “horizontal” curvilinear coordinates tangent to the horizons while (t) corresponds to the “vertical” curvilinear axis approximately orthogonal to the horizons. So far, common practice consists in covering the geological domain with a “structured stratigraphic grid” and then to use the (i, j, k) indexes as a sampling of the (u, v,t) coordinates. In this article, we propose a completely different approach based on the recently introduced “GeoChron” model where the (u, v,t) parameterization of the geological space is performed directly without building any stratigraphic grid. The advantage of such an approach is that the (u, v,t) parameterization can always be constructed independently of the complexity of the fault network. Moreover, this approach provides a solution for populating unstructured grids with polyhedral cells. },
 author = { Mallet, Jean-Laurent AND Moyen, Rémi AND Frank, Tobias AND Leflon, Bruno AND Royer, Jean-Jacques },
 booktitle = { 24th gOcad Meeting },
 month = { "june" },
 publisher = { ASGA },
 title = { Getting rid of stratigraphic grids: the GeoChron model },
 year = { 2004 }
}