In-line inspection guides integrity assessment, rehabilitation of sour-gas pipeline

Damage assessment by in-line inspection and rehabilitation of a sour-gas pipeline in Mexico revealed, among other findings, that ILI data are not always accurate and that metal loss by corrosion was the principal integrity issue. The program determined that future safe operation of the pipeline requ...

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Bibliographic Details
Published in:The Oil & gas journal 2002-04, Vol.100 (15), p.62-66
Main Authors: HALLEN, J.M, GONZALEZ, J.L, CALEYO, F, FERNANDEZ-LAGOS, F
Format: Magazinearticle
Language:English
Subjects:
Accuracy
Applied sciences
Corrosion
Datasets
Defects
Energy
Exact sciences and technology
Fuels
Gas industry
Gas transmission and distribution. Ships. Pipelines. Distribution networks. Compressors stations
Inspection
Petroleum industry
Pipelines
Rehabilitation
Risk assessment
Safety
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Summary:Damage assessment by in-line inspection and rehabilitation of a sour-gas pipeline in Mexico revealed, among other findings, that ILI data are not always accurate and that metal loss by corrosion was the principal integrity issue. The program determined that future safe operation of the pipeline required limiting its throughput to 200 MMscfd and maintaining a continuous fluid regime in order to mitigate hydrogen-induced cracking. No rerating was deemed necessary for the next 10 years.
ISSN:0030-1388
1944-9151