X80 heavy wall pipe solutions for deep/ultra-deepwater field developments in mild sour environment
This article presents mechanical and sour corrosion test results for X80 seamless pipes and girth welds. Four-point bend tests were carried out on parent pipes and weld joints, using samples taken at the ID surface to assess the material’s sulfide stress cracking resistance. Results highlight the possibility of using X80 heavy-walled seamless pipes for risers in a mild sour environment, using cost-effective welding.
Source: worldoil.com