Subsea services provider Unique Group completed the online steam leak sealing for Abu Dhabi Gas Liquefication Company (Adgas).

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The service was completed by Unique Group’s On-Site Engineering division through its Wellube brand on the 2.4m OD heat exchanger flange leak along the pipeline.

Unique Group's engineering team developed a four-piece ring clamp of 3.14t. The flange gap measurements were taken after the clamp was mobilised to the site.

The clamp lip was then machined to the exact size using the in-situ machining technology. After the installation of the clamp 150 gallons of sealant was injected to fill the gap, therefore forming an effective seal.

Adgas vice president for plant maintenance Hassan Taher said: “Completing the work online, Unique Group has made an extremely valuable contribution to the smooth running of the plant and avoided a costly shut down.

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“We would like to thank Unique Group for mobilising the service at a short notice and accomplishing the task on time.”

"We would like to thank Unique Group for mobilising the service at a short notice and accomplishing the task on time."

Unique Group accomplished this task as per the Adgas policies and procedures.

Unique Group on-site engineering division director Sahil Gandhi said: “Our Wellube brand is widely recognised as a leader in the provision of on-site engineering services.

“As a world-renowned brand, we work to provide the most cost-effective solution to our customers. We have been fortunate to work with ADGAS to help resolve the leakage with utmost precision and efficiency.”

Established in 1973, Adgas is currently involved in the Offshore Associated Gas project and the Integrated Gas Development project.


Image: Ring clamp machining. Photo: courtesy of Unique Group.