Prevented $2M downtime by detecting early piping failure

Client Overview

A leading Oil & Gas processing facility operating in a high-pressure, high-temperature service environment engaged IntegRel Engineering to perform a routine integrity assessment of critical process piping within its hydrocarbon separation unit. The client’s goal was to extend run length while minimizing the risk of unplanned outages.

Challenge

The facility had experienced minor leaks and insulation staining in nearby systems during previous campaigns, indicating potential corrosion under insulation (CUI) and thermal fatigue risks. However, shutting down the entire unit for full inspection was economically unfeasible — a single unplanned outage could cost the operator up to $2 million per day in production losses.

The client required a non-intrusive, reliable, and rapid integrity assessment method that could identify early signs of degradation without interrupting operations.

Solution

IntegRel Engineering deployed a targeted piping inspection program combining:

• Advanced Non-Destructive Testing (NDT) techniques including Phased Array Ultrasonic Testing (PAUT) and Digital Radiography (DR);

• Risk-Based Inspection (RBI) data analytics to prioritize high-risk lines;

• Engineering Fitness-for-Service (FFS) assessments per API 579 standards.

During the survey, IntegRel engineers detected incipient wall thinning and localized stress-induced cracking at a high-vibration elbow section. The damage was progressing toward a critical threshold that could have led to catastrophic rupture within the next operational cycle.

Results

• Early detection prevented an imminent piping failure, allowing for planned maintenance during a scheduled turnaround.

• Averted over $2 million in unplanned downtime and associated environmental and safety risks.

• Extended asset life by 3 years through targeted repair and metallurgical evaluation.

• Improved predictive maintenance planning via data integration into the facility’s Asset Integrity Management (AIM) system.

Key Takeaway

By integrating advanced inspection technologies with engineering analytics, IntegRel Engineering helped the client transition from reactive maintenance to proactive asset management — delivering measurable cost savings and enhanced operational safety.