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Case Study for Releasing Stuck Pig in Non-Metallic Pipeline

[+] Author Affiliations
Abdullah Al-Khaledi, Hamad Al-Zuwayer, Fahad Al-Ghanem

Kuwait Oil Company, Ahmadi, Kuwait

Paper No. IPC2014-33072, pp. V004T01A001; 4 pages
  • 2014 10th International Pipeline Conference
  • Volume 4: Production Pipelines and Flowlines; Project Management; Facilities Integrity Management; Operations and Maintenance; Pipelining in Northern and Offshore Environments; Strain-Based Design; Standards and Regulations
  • Calgary, Alberta, Canada, September 29–October 3, 2014
  • Conference Sponsors: Pipeline Division
  • ISBN: 978-0-7918-4613-1
  • Copyright © 2014 by ASME


This paper discusses a case study regarding a stuck pig in a non-metallic pipeline used for effluent water service. The line was pigged and half way through the operation, the pig got stuck in the pipeline. The exact location of the pig was not known and huge sludge volume was recovered at the receiving station. Several attempts were made to release the stuck pig; these attempts were constrained by the nature of the non-metallic pipeline and its design. Through collaboration with the downstream section of Kuwait Oil Company, we were able to free the stuck pig and continue the pigging operation. Ideas that were considered and implemented to free the pig will be shared and the method chosen and implemented.

Copyright © 2014 by ASME
Topics: Pipelines



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