Cortec® Vapour phase Corrosion Inhibitors provide a comprehensive solution to some of the toughest industrial preservation challenges worldwide. Their ability to protect hard-to-reach areas has made them a key component in large-scale oil and gas construction and preservation projects. However, ensuring their continued effectiveness requires proper application and ongoing monitoring.
Establishing a Strong Foundation for VpCI® Protection
Effective corrosion monitoring begins with a well-executed preservation plan. Whether safeguarding an entire yard of pipeline segments or a single boiler, maintaining corrosion-free assets saves both time and money. The process is straightforward: filling void spaces with vapour phase Corrosion Inhibitors and sealing all openings to retain the protective chemistry.
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One application example includes fogging pipeline segments with CorroLogic® Fogging Fluid VpCI®-339 or VpCI®-337 and sealing the ends with VpCI®-126 HP UV Shrink Film, MilCorr® VpCI® Shrink Film, or another suitable closure system. When applied at the correct dosage and using proper techniques, the voids remain well protected with minimal product removal required when assets are put into service.
Maintaining Protection Through Corrosion Monitoring
For assets stored for a year or longer, periodic inspections ensure the preservation system remains active. The frequency of these checks depends on environmental conditions, ranging from monthly to biannual assessments.
Corrosion monitoring is both simple and cost-effective, offering significant benefits over more expensive inspection methods. Instead of using a costly borescope or fiberscope to inspect an entire pipeline segment, corrosion coupons provide a practical alternative. Industry expert Eric Uutala recommends placing one corrosion coupon in every 10 pipeline segments to collect representative data on preservation status. This approach significantly reduces the number of pipe openings required during inspections while still providing a clear understanding of overall protection levels.
When properly fogged and sealed, corrosion coupons should remain free from rust or degradation. If corrosion is detected, the issue must be investigated. Solutions may involve reapplying VpCI® products or addressing a compromised seal to restore protection.
Proactive Monitoring for Long-Term Peace of Mind
Detecting a corrosion issue midway through a preservation period allows for timely corrections, preventing extensive damage that could occur over one or two years of unchecked storage. A small 3 x 0.5 inch (7.6 x 1.3 cm) piece of metal could be the key to avoiding costly surprises, providing confidence that the preservation plan is functioning as intended.
For further guidance on corrosion prevention and monitoring, Cortec® offers expert support to help industries safeguard their valuable assets efficiently and effectively.
For more information visit www.cortecvci.com
