Polyhedral Solid cut

Jérôme Massot and Stéphane Conreaux. ( 1998 )
in: 17th gOcad Meeting, ASGA

Abstract

The eurrent implementation of the SGrid eut is not really a eut, it is rather a "cracking" operation. Indeed, the topology of the cells must be preserved and to simulate a fault going through a geologicallayer for example, GOCAD changes the geometry of cells along the fault and dissociates sorne cells to create the fault. From the point of view of sorne flow simulators, this operation induces a "dirty" ·geometry along the faulting plane. With G-Map topology, polyhedral cells can be created, so it is now possible to really eut a Stratigraphie Grid thus generate arbitrary polyhedral cells. More information is needed to store these polyhedral cells, i.e. an explicit topology must be represented. An optimized data storage policy is proposed ta reduce the amount of memory required to store these objects. The abstract topological interface ("magic dart" lenses paradigm) enables to mix different topology storage policies within the same object. This method makes it possible to use a regular grid with implicit topology and to store explicit topology only in the faulted zones.

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    BibTeX Reference

    @inproceedings{MassotRM1998a,
     abstract = { The eurrent implementation of the SGrid eut is not really a eut, it is rather a "cracking" operation. Indeed, the topology of the cells must be preserved and to simulate a fault going through a geologicallayer for example, GOCAD changes the geometry of cells along the fault and dissociates sorne cells to create the fault. From the point of view of sorne flow simulators, this operation induces a "dirty" ·geometry along the faulting plane. With G-Map topology, polyhedral cells can be created, so it is now possible to really eut a Stratigraphie Grid thus generate arbitrary polyhedral cells. More information is needed to store these polyhedral cells, i.e. an explicit topology must be represented. An optimized data storage policy is proposed ta reduce the amount of memory required to store these objects. The abstract topological interface ("magic dart" lenses paradigm) enables to mix different topology storage policies within the same object. This method makes it possible to use a regular grid with implicit topology and to store explicit topology only in the faulted zones. },
     author = { Massot, Jérôme AND Conreaux, Stéphane },
     booktitle = { 17th gOcad Meeting },
     month = { "june" },
     publisher = { ASGA },
     title = { Polyhedral Solid cut },
     year = { 1998 }
    }