The Top Three RBI Risks That Cannot Wait for a Budget Rebound

In today's challenging market, many organizations are tightening budgets and deferring projects. But when it comes to Risk-Based Inspection (RBI), some risks are simply too critical to postpone.

At Asset Optimization Consultants, Inc. (AOC), we've seen how waiting for the "right budget cycle" can expose operators to costly and avoidable failures.

Here are the Top Three RBI Risks that demand immediate attention:

1: High-Risk Equipment

A simple definition for high-risk equipment includes pressure vessels, piping circuits, heat exchangers, storage tanks, and relief devices that exhibit both a high probability of failure (POF) and a high consequence of failure (COF).

Hydrocrackers provide some of the clearest examples. These units operate at high hydrogen partial pressures and severities, designed for molecular conversion. Most U.S. hydrocrackers are older, meaning much of the equipment has exceeded its original 20-year design life. This combination of aging assets and severe operating conditions elevates both POF and COF:

• High CoF

  results from the volatile process conditions, where a single failure can trigger significant safety, environmental, or financial consequences.

• High PoF

  stems from equipment being pushed beyond intended service life, despite ongoing maintenance.

For these reasons, certain assets, especially those within hydrocrackers, cannot afford inspection delays. Risk keeps increasing awaiting budget approvals, and deferring inspections on these units can introduce unacceptable exposure to catastrophic release or safety incidents.

2: Corrosion Under Insulation (CUI)

CUI is one of the most costly and dangerous hidden damage mechanisms in refineries and other chemical facilities. It occurs when water penetrates insulation and corrodes ferritic piping or vessels out of sight. Most assets at risk operate in the 10°F to 350°F range, which can include a large portion of insulated piping circuits and pressure vessels.

Because CUI is concealed until insulation is removed, failures often appear suddenly and without warning. Industry data shows it is a leading cause of leaks and unplanned shutdowns. Aging insulation systems in our facilities increase the likelihood of undetected degradation.

Without targeted inspection and remediation, we face elevated exposure to unexpected loss of containment, safety incidents, and production disruptions. Deferring CUI programs to meet budget constraints does not stop the damage, it only ensures that failures will be more costly when they surface. Therefore AOC recommends the following mitigation measures:

• Risk-Based Targeted Inspections

  Prioritize high-risk circuits using RBI and employ advanced NDE (e.g., ultrasonic or pulsed eddy current) for hidden detection.

• Insulation and Jacketing Upgrades

  Replace or repair damaged insulation and improve water-shedding designs to reduce ingress.

• Focused CUI Program Funding

  Protect inspection and remediation budgets from deferral, ensuring continuous mitigation of this persistent degradation threat.

Addressing it early saves millions in unplanned downtime and repairs.

3: Overdue Critical Inspections

Skipping or deferring scheduled Risk-Based Inspection (RBI) tasks can have significant consequences for both regulatory compliance and operational integrity. Some state regulatory bodies often mandate strict adherence to inspection schedules to ensure asset reliability and safety. Failure to comply with these requirements can result in fines, legal repercussions, and reputational damage. Moreover, deferring inspections increases the likelihood of undetected degradation, which can escalate over time, leading to higher maintenance costs, unplanned downtime, and heightened safety risks. Consistent execution of RBI tasks is therefore critical to managing both regulatory obligations and long-term asset performance.

Botom Line: In RBI, waiting often costs more than acting. Prioritizing these risks today safeguards your people, assets, and bottom line tomorrow.

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