Corrosion and Asset Integrity Management in Oil and Gas Production, Process, Transportation and Storage Facilities

摘要

Corrosion is the primary integrity threat in oil & gas pressure containment and process facilities. Managing corrosion is the starting point for integrity management, and defining a corrosion management strategy is key to meeting the requirements of a corrosion management policy. Corrosion is also the main risk driver of Risk Based Inspection (RBI) activities; the primary means by which the inspection strategy, essential for ensuring integrity, is put in place. A number of approaches are considered here to assess and manage integrity of assets - topside facilities, process plant, utilities, marine terminals, tank farms, pipelines, etc. We will evaluate qualitative, semi qualitative and quantitative risk assessment approaches. Risk assessment is one of the main RBI optimisation criteria. We consider how risk assessment approaches influence the resultant risk, and how this impacts integrity management. We will consider the impact of risk assessment on the AIM strategy, and refer to software developed by WGK and how their application can result in safe, cost effective operation/management of oil and gas facilities. RBI has evolved Into a sophisticated method for optimising inspection processes and frequency to deliver cost-effective AIM. RBI design incorporates multi-disciplinary knowledge and conditional factors, changes in operating conditions, asset operation and maintenance, asset criticality, data interpretation and condition prediction.