Page 370 - Pipeline Pigging Technology
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High-accuracy  calliper  surveys




































                          Fig.3. Typical dent statistics.


         The utility programs WELDREPTand  DENTREPTprovide    reports of all the
      welds and summaries of dents meeting user-defined specifications.

         Reporting     functions


         Dent report

         DENTREPT   produces  a summary of the  features (Fig.3) identified during
      the run of the Geoptg. The search variables are the height of the feature and
      the  number  of  scan  lines.  The  number  of  along-track  scans  that  a feature
      covers is related to its length, and depends on the pig speed and the sampling
      rate, which  are variables used to determine the  data points included in the
      search.
         The program provides an output that is summarized in Table 1 below. Each
      feature  is identified with a number that is used in more detailed analysis.

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