Platte inspection program supports alternative to hydrostatic testing

Platte Pipe Line's use of a new inspection tool to identify seam-weld defects revealed that the transverse field inspection tool had less impact on pipeline operations and provided greater assurance than hydrostatic testing for the long-term operational reliability of the pipeline system. Use o...

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Bibliographic Details
Published in:The Oil & gas journal 2001-03, Vol.99 (13), p.54
Main Authors: Yasinko, Ed A, Vieth, Patrick H, Dick, Dean D, Pierantoni, Troy D, Nidd, Phil G
Format: Magazinearticle
Language:English
Subjects:
Accuracy
Case studies
Corrosion
Cracks
Defects
Failure
Fluid dynamics
Inspection
Inspections
Manufacturers
Manufacturing
Metal fatigue
Petroleum industry
Pipelines
Reliability
Testing
Welding
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Summary:Platte Pipe Line's use of a new inspection tool to identify seam-weld defects revealed that the transverse field inspection tool had less impact on pipeline operations and provided greater assurance than hydrostatic testing for the long-term operational reliability of the pipeline system. Use of the tool was prompted by an operational failure on the Platte system in July 1997. This failure was attributable to operational pressure-cycle fatigue crack growth of a hook-crack in the longitudinal seam weld. The defect had grown to failure over 24 years since the pipe had been hydrostatically tested in 1973. In response to this failure, the DOT Office of Pipeline Safety issued a corrective order to verify the integrity of this pipeline through hydrostatic testing or an approved in-line inspection program.
ISSN:0030-1388
1944-9151