Pipeline Integrity Management through Internal Corrosion Monitoring

摘要

Pipelines are very important for the upstream oil and gas industries. The end products are transported to the clients through these essential installations. Two main aspects need to be met, which are the quality standards of the product as set by the client and secondly the mechanical integrity of the pipelines to prevent any failure. The quality of the product is maintained by proper processing of the raw material crude or gas. The external protection of the pipeline is carried out by suitable coating and cathodic protection methods. The internal corrosion is quite complex due to the presence of different corrosion species that may cause different forms of corrosion. Therefore, as part of the pipeline integrity management, an internal corrosion monitoring plan has been developed. This paper deals with different internal corrosion protocols adopted for a high pressure gas pipeline to assess the mechanical integrity of the pipeline. Also attempts to correlate the findings of these different internal corrosion protocols to get an insight into the different corrosion mechanisms taking place inside the pipelines.