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Computer-implemented method to screen for longitudinal-seam anomalies

  • US 9,243,972 B2
  • Filed: 11/24/2010
  • Issued: 01/26/2016
  • Est. Priority Date: 12/21/2007
  • Status: Expired due to Fees
First Claim
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1. A computer-implemented method to detect longitudinal-seam anomalies in a pipeline weld of a pipeline, the computer-implemented method comprising:

  • (a) receiving magnetic flux leakage data by a computer, the magnetic flux leakage data being representative of potential cracks in a longitudinal pipeline weld;

    (b) displaying the magnetic flux leakage data on a display associated with the computer;

    (c) analyzing the magnetic flux leakage data by use of the computer associated with the display responsive to signal characteristics of the magnetic flux leakage data that may be indicators of the potential cracks, the signal characteristics indicative of at least a maximum length of the potential cracks;

    (d) determining potential by use of the computer and associated display responsive to the analyzing of the magnetic flux leakage data;

    (e) determining a validation dig list containing one or more cracks by use of the computer, wherein the list is used to identify areas along the pipeline to be further analyzed.

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