Insights
Explore materials and integrity considerations for CO2 and hydrogen pipelines, with an overview you can read here and links to the original technical notes and presentations.
ASME IPC 2026 · IPC2026-184916
A. Perez, C. Middleton, P.N. Mahida, R.T. Hill, H. Yin, and M. Alam. Qualification of API 5L PSL 2 Grade X65MS helical welded line pipe for sour service on the Copperhead to Loving trunkline. ASME 16th International Pipeline Conference (IPC2026).
ASME IPC 2026 · IPC2026-186108
A. Perez and V. Shimoga Baburao. Machine learning and statistical analysis of NDT data for pipeline weld quality management. ASME 16th International Pipeline Conference (IPC2026).
Technical overview
How fluid composition, operating conditions, fracture control, and corrosion fit into a pipeline assessment. A concise overview based on the 2023 PHMSA presentation.
Read the overview →Original technical note · Microsoft Sway
Richard Hill and Aquiles Perez introduce piping-material considerations for new and existing pipelines carrying pure hydrogen or hydrogen blended with natural gas.
Open the original H2 note →PHMSA R&D Forum, 2023
Aquiles Perez and Richard Hill's presentation on CO2 pipeline transport and composite crack arrestors. Presented on 14 September 2023; hosted by PHMSA.
Open presentation (PDF) →The original CO2 technical note remains available on Microsoft Sway. Related crack-arrestor work by C. Alexander, A. Perez, and C. Whalen at PPIM 2024 is cited as Reference 25 in API RP 1192.
For a project discussion, share the transported-fluid specification, operating envelope, pipe material, and assessment question.
