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USE OF SURVIVAL MODELING METHODS WITH PIPELINE INSPECTION DATA FOR DETERMINING CAUSAL FACTORS FOR CORROSION UNDER INSULATION

  • US 20130304438A1
  • Filed: 05/09/2012
  • Published: 11/14/2013
  • Est. Priority Date: 05/09/2012
  • Status: Abandoned Application
First Claim
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1. A computer-implemented method of modeling predicted CUI transition lifetimes in pipeline joints, comprising:

  • for each pipeline joint in a plurality pipeline joints in one or more pipelines;

    determining a first condition of the pipeline joint with respect to CUI at a first time;

    determining a second condition of the pipeline joint with respect to CUI at a second time subsequent to the first time; and

    determining a plurality of attributes associated with the pipeline joint; and

    performing survival analysis modeling using the first condition, the second condition, and the plurality of attributes for the plurality of pipeline joints to derive one or more survival models reflecting one or more predicted lifetimes before a hypothetical input pipeline joint transitions from a first CUI condition to a second CUI condition.

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