API 580

Risk Based Inspection

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Risk based inspection is the process of developing an inspection plan based on knowledge of the risk of failure of the equipment. The essential element is a risk analysis. This is the combination of an assessment of the likelihood (probability) of failure due to damage, deterioration or degradation with an assessment of the consequences of such failure.

The information gained from this process is used to identify (a) the type and rate of damage that may potentially be present and (b) the equipment or locations where failure would give rise to danger of different degrees. Higher risk equipment may have active damage mechanisms or high consequences of failure, or a combination of the two. A suitable inspection scheme is then planned to increase confidence about the equipment's current and future condition, taking account of the potential damage mechanisms and the reliability of the inspection techniques used.

International engineering standards and practices that relate to risk-based inspection include, but are not limited to, API RP 580 and 581, ASME PCC-3, and RIMAP. API RP 580 sets out the minimum guidelines for implementing an effective, credible RBI program. API RP 581 details the procedures and methodology of RBI.

  • The Basic Concept of RBI
  • Risk Management and Risk Reduction
  • Inspection Optimization
  • Relative Risk vs. Absolute Risk
  • Introduction to Risk Based Inspection
  • Type of Assessment
  • Planning
  • Data and Information Collection
  • Identifying Deterioration Mechanisms and Failure Modes
  • Probability of Failure
  • Consequence of Failure
  • Risk Assessment and Management
  • Mitigation
  • Documentation

Risk Based Inspection

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api570

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During the Preparatory course several examples, illustrations,mock up examination and case studies will be discussed and participants will be given additional reading materials and practice questions for their study purpose.

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