Articles posted by "NRI"

2″ OD Hydrocarbon Branch Enclosure Encapsulation

Atmospheric corrosion is common among offshore pipes. During a routine inspection, severe atmospheric corrosion was noted on a 2” branch connected to a 10” hydrocarbon / water line. Surface preparation was not possible due to the severe corrosion, so NRI recommended a perimeter seal enclosure to encapsulate the entire branch leg. Read more below to […]
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2″ OD Offshore Flare Engineered Enclosure Repair

During a routine inspection, two serious defects were found on a 2″ flare gas line. When NRI was asked to provide the safest repair option, NRI recommended an annular fill purpose built mechanical enclosure. Read more below to find out how this leak was repaired.
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126” Pressure Vessel Composite Leak Repair in Poland

A 12” x 1” crack was identified in the body this soda plant’s pressure vessel in the City of Janikowo, Poland. The needed immediate attention, and the quickest overnight solution were NRI’s epoxy systems. Read more to learn how this leak was fixed.  
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10" OD Tee Repair and Rehabilitation in Mexico

A 10″ OD petroleum line in Mexico was experiencing severe pitting due to atmospheric conditions causing a 50% wall loss over a 2’6″ (0.8m) section. Thermo-Wrap CF (carbon fiber) was used to bring this line back into operation. Read more below.
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18" OD High Pressure Repair in South Korea

In South Korea, a high pressure refinery pipe was suffering of internal corrosion. The refinery required a repair was necessary to restore the 50” section of 18” OD pipe to its original design strength and keep the system in working order. The below case study shows how NRI’s Thermo-Wrap CF was able to restore the […]
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2" OD Natural Gas Leak Fixed with Trident Seal Composite

A 2″ OD Natural gas pipe has suffered six leaks and found to be migrating around the threads of the shut off valves of the 2” OD pipes which were operating at a pressure of 45 psi (3 bar). Shutting down the leaking gas lines in order to replace the defective valves was not an […]
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22" Offshore export riser repair with Thermo-Wrap CF

A 22″ offshore export riser pipeline in Indonesia was experiencing severe external corrosion, which required an immediate repair because of a high failure risk. The corrosion issue was not only on the main line but also extended onto the secure clamp. NRI’s Thermo-Wrap CF/Carbon Fiber system was used to contain this 1500 psi high pressure […]
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24” Offshore Gas Export Pipeline Riser Repair

Two sections along a 24” nominal bore Gas Export Pipeline Riser on a Philippines offshore gas platform were found experiencing external corrosion under the passive fire protection. All repairs were critical as these risers could not be shut down, and pressures could not be reduced due to their offshore location. With the high design pressure […]
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30" Directionally Drilled Natural Gas Pipeline Coated with Scar-Guard

Directionally drilled natural gas pipelines are often challenged with concerns of coating damage from the abrasion of pull back. Girth welds require a field applied coating where the bond strength is less than that of the factory applied coatings and the raised height of the weld becomes a target for damage. Repairing coating damage is […]
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20" Underground pipeline external corrosion repair

Various 20″ underground pipelines were excavated due to serious external corrosion issues. The lines were found to have wall loss of up to 50% due to localized pitting. See the case study below to learn how NRI’s products were able to permanently repair the pipes before restoring the excavation.
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