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Automated borehole geology and petrophysics interpretation using image logs

  • US 7,133,779 B2
  • Filed: 05/04/2004
  • Issued: 11/07/2006
  • Est. Priority Date: 05/08/2003
  • Status: Active Grant
First Claim
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1. A method of characterizing a borehole traversing an earth formation, comprising:

  • a) obtaining an array of data from a formation characterization tool, wherein said data describes a section of said borehole;

    b) computing at least one spatial characteristic describing the relative position of pairs of data;

    c) assigning said pairs of data to bins based on said spatial characteristic, wherein the size of said bins are selected based on said tool;

    d) transforming said data to petrophysical properties of said borehole;

    e) calculating the variance of each bin;

    f) developing a model of said variances;

    g) determining at least one geostatistical parameter using said model; and

    h) upscaling said geostatistical parameters to characterize a region of said earth formation.

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