Application of Internal Corrosion Predictive Modeling (ICPM) in Pipeline Integrity Risk Management of Oil and Gas Production Fields

摘要

This paper summarizes a comprehensive internal corrosion integrity risk assessment which was conducted for six different oil and gas production fields. First, the internal corrosion modeling technique was applied to assess the risk of internal corrosion for all the oil emulsion (OE), sour gas (SG), salt water injection (SW) and 15% of sweet natural gas (NG) pipelines which were in-service at the time of this investigation. Modeling results were then used to conduct a pipeline integrity risk assessment for the investigated production fields. This pipeline risk assessment follows in-part the non-mandatory guidelines outlined in CSA Z662-11 and the scope of this paper, only covers the risk of internal corrosion degradation. The results of the risk assessment is a ranking of each pipeline based on known and calculated parameters which affect the "likelihood" or probability of a corrosion related event occurring and the "consequence" of a corrosion related failure.