Well Log Interpretation and Well Correlation.

in: Proc. 27th Gocad Meeting, Nancy

Abstract

Well log interpretation is an analysis of well logs, whose characteristics are interpreted to determine vertical stratigraphic sections [Homewood et al., 1992] and stratigraphic markers. The allocation of these vertical stratigraphic sections of different wells yields a well correlation often used for 3D geological modeling and reservoir characterization. Therefore, reservoir characterization depends on the reliability and exactness of the results of well correlation and well log interpretation subject to uncertainties. There is a need to assess how these uncertainties propagate to the following steps of reservoir modeling. For this, we propose a workflow to: (1) automatically sample special stratigraphic markers (parasequence boundaries) from a set of well logs and available sedimentological information, and (2) generate stochastically well correlations between time stratigraphic sections bounded by parasequence boundaries (parasequences). In this paper, an overview and short summary of workflows and possible techniques for well log interpretation and well correlation are given.

Download / Links

    BibTeX Reference

    @INPROCEEDINGS{P308_Bennewitz,
        author = { Bennewitz, Evelyn and Caumon, Guillaume },
         title = { Well Log Interpretation and Well Correlation. },
     booktitle = { Proc. 27th Gocad Meeting, Nancy },
          year = { 2007 },
      abstract = { Well log interpretation is an analysis of well logs, whose characteristics are interpreted to determine
    vertical stratigraphic sections [Homewood et al., 1992] and stratigraphic markers. The
    allocation of these vertical stratigraphic sections of different wells yields a well correlation often
    used for 3D geological modeling and reservoir characterization. Therefore, reservoir characterization
    depends on the reliability and exactness of the results of well correlation and well log
    interpretation subject to uncertainties. There is a need to assess how these uncertainties propagate
    to the following steps of reservoir modeling. For this, we propose a workflow to: (1) automatically
    sample special stratigraphic markers (parasequence boundaries) from a set of well logs and
    available sedimentological information, and (2) generate stochastically well correlations between
    time stratigraphic sections bounded by parasequence boundaries (parasequences). In this paper,
    an overview and short summary of workflows and possible techniques for well log interpretation
    and well correlation are given. }
    }