FEASIBILITY OF MAGNETIC FLUX LEAKAGE IN-LINE INSPECTION AS A METHOD TO DETECT AND CHARACTERIZE MECHANICAL DAMAGE. FINAL REPORT, OCTOBER 1994-MAY 1996

The objective of the project was to assess the feasibility of using the magnetic flux leakage (MFL) technique to detect mechanical damage defects in natural gas pipelines and, if viable, begin to quantify its potential. Having an in-line inspection technique to detect and characterize mechanical damage defects, especially those defects which may lead to delayed failure, is important. Mechanical damage components were classified as removed metal, simple gouges, and simple dents. For each of these primary components, the defect will generally consist of geometric deformation and cold working of the pipe material. Both must be known to determine defect severity.

• Supplemental Notes:
  • Original stock has color illustrations. Reproductions are in black and white. See also PB96-175476. Prepared in cooperation with Southwest Research Inst., San Antonio, TX. Sponsored by Gas Research Inst., Chicago, IL, Transmission Business Unit.
• Corporate Authors:

  Battelle Columbus Laboratories

  505 King Avenue
  Columbus, OH  United States  43201
• Authors:
  • Davis, R J
  • BUBENIK, T A
  • CROUCH, A E
• Publication Date: 1996-6

Language

• English

Media Info

• Pagination: 142 p.

Subject/Index Terms

• TRT Terms: Defects; Electromagnetic properties; Fluxes; Inspection; Leakage; Loss and damage; Mechanical failure; Natural gas pipelines
• Uncontrolled Terms: Magnetic flux; Mechanical damage
• Subject Areas: Maintenance and Preservation; Pipelines;

Filing Info

• Accession Number: 00731938
• Record Type: Publication
• Report/Paper Numbers: GRI-95-0369
• Files: TRIS
• Created Date: Feb 5 1997 12:00AM