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Risk-based inspection

Risk-based inspection

Risk-Based Inspection (RBI) is a process that assesses risks by evaluating the Probability of Failure (POF) and Consequence of Failure (COF) associated with each component of equipment. It helps develop inspection and mitigation plans based on risk prioritization.

Types of RBI Assessment

• Qualitative: Relies on descriptive information and engineering judgment.
• Quantitative: Utilizes numerical calculations and sensitive input data.
• Semi-Quantitative: Combines qualitative and quantitative methods.

Benefits of Risk-Based Inspection

Improved risk control and understanding.
Reduction in facility and equipment risks.
Optimization of inspection resources and cost.
Enhanced uptime, reliability, and flexibility.
Decreased likelihood of catastrophic failure.
Improved inspection quality and knowledge of plant equipment.
Focus on high-risk items for efficient resource allocation.
Cost savings through optimized shutdown frequencies and inspection intervals.

Cost Savings in Risk-Based Inspection

By transitioning from time-based to risk-based approaches and employing more effective inspection techniques, significant cost savings can be achieved. RBI typically requires fewer inspection points, extends plant shutdown intervals, reduces equipment openings, and lowers the risk of failures. Over time, the benefits of RBI outweigh the costs of implementation and management.

Reasons for Increased Attention to RBI

Aging oil and gas facilities necessitate higher risk management.
Stricter regulations and public concern for health, safety, and the environment.
Increased financial risk calculation and cost reduction due to industry competition.
The impact of media, especially social media, on corporate reputations.