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Geometric Magnetic and Discriminator Sensor for Smart Pigs

[+] Author Affiliations
Vinicius de C. Lima, José A. P. da Silva

Pipeway, Hassocks, West Sussex, UK

Jean Pierre von der Weid

PUC-Rio, Rio de Janeiro, RJ, Brazil

Claudio Soligo Camerini, Carlos H. F. de Oliveira

Petrobras, Rio de Janeiro, RJ, Brazil

Paper No. IPC2004-0636, pp. 991-995; 5 pages
  • 2004 International Pipeline Conference
  • 2004 International Pipeline Conference, Volumes 1, 2, and 3
  • Calgary, Alberta, Canada, October 4–8, 2004
  • Conference Sponsors: International Petroleum Technology Institute
  • ISBN: 0-7918-4176-6 | eISBN: 0-7918-3737-8
  • Copyright © 2004 by ASME


A result of a research partnership between Catholic University of Rio de Janeiro – PUC-Rio, PETROBRAS and PIPEWAY is presented: The development of an innovative sensor head for high resolution MFL Pigs, the GMD sensor, Geometric Magnetic and Discriminator. This head makes high resolution magnetic pipeline readings using the MFL - Magnetic Flux Leakage technique, with the addition of geometric readings and the outside/inside defects discriminations. This technique makes possible, with only one crown of GMD sensors, the caliper, metal loss and outside/inside discrimination pipeline inspection. Technical aspects of the development, e.g.: the construction details of the sensor, evaluation tests and laboratory results are also presented.

Copyright © 2004 by ASME
Topics: Sensors



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