Method for inspection of metal tubular goods

  • US 7,401,518 B2
  • Filed: 09/01/2007
  • Issued: 07/22/2008
  • Est. Priority Date: 03/07/2003
  • Status: Expired due to Fees
First Claim
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1. Method for collection and storage of information representing wall thickness of tubular goods, comprising:

  • a. selecting a section of the wall of a tubular good about which information representing wall thickness is to be acquired and then stored in a format readable by computer means;

    b. determining number and spacing of discrete portions within said section of the wall of said tubular good which will produce information representing wall thickness of said section of the wall of said tubular good having desired resolution;

    c. at each of said discrete portions, causing said ultrasonic detection means to determine the thickness of the wall of said tubular good;

    d. at each of said discrete portions, determining the longitudinal position of said ultrasonic detection means along the axis of said tubular good;

    e. at each of said discrete portions, determining the circumferential position of said ultrasonic detection means about the circumference of said tubular good; and

    ,f. at each of said discrete portions making a computer readable recording of said wall thickness, longitudinal and circumferential positions in an associated relationship.

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