Creation and consistency checking of structural models using horizon extracted from three-dimensional seismic data

in: 20th gOcad Meeting, ASGA

Abstract

This paper is a review of the research developed during my PhD [Duv00]. The aim of this work was to develop tools assisting geologists in creating a structural model starting from horizons extracted from three-dimensional seismic data. The creation of a structural model includes the modeling of triangulated surfaces representing faults and horizons and the detection of connections between these surfaces. From these connected surfaces, we also want to create volumic models of various kinds. The proposed method intensively uses horizon borders represented by polygonal lines. The horizon borders are used to create faulted horizon surfaces and the faults cutting through them. They are also used to define all the connections between the horizons, the faults and the boundary of the area of interest. This information is stored in a data model referred to as the skeleton of the structural model and has several applications, among which: the geometric honoring of the contacts; the computation of juxtaposition diagram on faults; the computation of displacement maps on faults; the computation of three-dimensional models of various kinds. After a brief reminder of the workflow that has been defined to create the structural model, we will go through some applications of the definition of the skeleton of the structural model.

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    BibTeX Reference

    @inproceedings{DuvinageRM2000,
     abstract = { This paper is a review of the research developed during my PhD [Duv00]. The aim of this work was to develop tools assisting geologists in creating a structural model starting from horizons extracted from three-dimensional seismic data. The creation of a structural model includes the modeling of triangulated surfaces representing faults and horizons and the detection of connections between these surfaces. From these connected surfaces, we also want to create volumic models of various kinds. The proposed method intensively uses horizon borders represented by polygonal lines. The horizon borders are used to create faulted horizon surfaces and the faults cutting through them. They are also used to define all the connections between the horizons, the faults and the boundary of the area of interest. This information is stored in a data model referred to as the skeleton of the structural model and has several applications, among which: the geometric honoring of the contacts; the computation of juxtaposition diagram on faults; the computation of displacement maps on faults; the computation of three-dimensional models of various kinds. After a brief reminder of the workflow that has been defined to create the structural model, we will go through some applications of the definition of the skeleton of the structural model. },
     author = { Duvinage, Isabelle AND Lecour, Magali AND Dulac, Jean-Claude AND Mallet, Jean-Laurent },
     booktitle = { 20th gOcad Meeting },
     month = { "june" },
     publisher = { ASGA },
     title = { Creation and consistency checking of structural models using horizon extracted from three-dimensional seismic data },
     year = { 2000 }
    }