Validation of Assessment Methods for Production Scale Girth Welding of High Strength Steel Pipelines with Multiple Pipe Sources

The objectives of this project were: (1) To test a large set of girth welds produced under realistic conditions by a state of the art high productivity gas metal arc welding (GMAW) system; (2) To demonstrate the effect of material variability between pipes, between heats and between line pipe manufacturers; and (3) To assess the capabilities of commonly used weld defect assessment methods against the performance of a large set of welds made under field production conditions. To achieve these objectives BP has provided the project with ten girth welds from the X100 operational trial. Following a review of a range of different methods for assessing the acceptability of a defect in a girth weld, a major test program was developed, which included 30 curved wide plate (CWP) tests. The results from the test program were then assessed using different girth weld assessment methods, to determine whether they were suitable for assessing the performance of a girth weld defect in a pipeline constructed from grade X100 line pipe from multiple pipe sources.


  • English

Media Info

  • Media Type: Digital/other
  • Edition: Issue: 1.0
  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: 461p

Subject/Index Terms

Filing Info

  • Accession Number: 01643615
  • Record Type: Publication
  • Report/Paper Numbers: 10361
  • Contract Numbers: DTPH56-07-T-000006
  • Files: TRIS, ATRI, USDOT
  • Created Date: Aug 9 2017 12:09PM