Method for inspection of metal tubular goods
DCFirst Claim
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.
1 Assignment
Litigations
1 Petition
Accused Products
Abstract
A method for inspection of tubular goods includes using ultrasonic detection means to obtain wall thickness measurement of discrete sections of a tubular good and recording each measurement in association with both the longitudinal and circumferential position at which each measurement was obtained. Accordingly each measurement of wall thickness represents a small portion of the wall thickness of said tubular in three dimensional space. A plurality of said measurements may thereby be displayed by computer means in virtual three dimensional format. Differing wall thickness readings made be represented by different shading or color display, so that anomalies of interest may be readily detected. Alternatively the recorded information may be readily processed by computer means to calculate the effect of stressors on the wall of said tubular good.
26 Citations
20 Claims
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1. Method for collection and storage of information representing wall thickness of tubular goods, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification