System for identifying individual drill pipe

Details System for identifying individual drill pipe System for identifying individual drill pipe

1984-11-15

1986-04-01

Levy, Stewart J.

Measuring and testing

Borehole or drilling

Downhole test

175 40, E21B 4700

Patent

active

045789916

ABSTRACT:
System is for identifying individual drill pipes. It uses a group of non-ferrous rings on the outside surface of an individual drill pipe. The rings are arranged in a predetermined order and spacing to represent an individual identification. There is a means for sensing the non-ferrous rings, and means for determining the individual identification as the pipe is translated longitudinally relative to the sensing means.

REFERENCES:
patent: 3643065 (1972-02-01), Dunigan
patent: 4202490 (1980-05-01), Gunkel et al.
patent: 4232216 (1980-11-01), Helle

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