Recent Developments and Technology Improvements in API Risk-Based Inspection Planning Technology
A Joint Industry Project for Risk-Based Inspection (RBI JIP) was initiated and managed by API within the refining and petrochemical industry in 1994. The work of this JIP resulted in two publications, API 580 Risk-based Inspection and API 581 Base Resource Document – Risk-Based Inspection. The concept behind these publications was for API RP 580 to introduce the principles and present minimum general guidelines for RBI while API 581 provides quantitative RBI methods. The API RBI JIP has made major advancements since the publication of these two documents and is working on the second edition of API 581. The second edition will be published in a three volume set, Part 1 – Inspection Planning Using API RBI Technology, Part 2 – Probability of Failure in API RBI, and Part 3 – Consequence Modeling in API RBI. This paper provides an overview of this new three volume set, describes the advances made in risk-based inspection technology, provides an overview of a new consequence modeler designed to evaluate complex fluids, and explains a new approach that utilizes API 579-1/ASME FFS-1 Fitness-For-Service (FFS) models to determine the probability of failure component of risk. This new approach reinforces the complementary nature of FFS and RBI for asset management and ensures that standard models and assessment techniques are used. In addition, this paper will also describe the relationship between the API RBI JIP and RIMAP Risk Based Inspection and Maintenance Procedures for European Industry and how these two organizations are working to achieve commonality in RBI approaches.
Osage, D.A., and Henry, P.A., “Recent Developments and Technology Improvements in API Risk-Based Inspection Planning Technology”, ESOPE Conference, Paris, France, 2007.
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