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Cortez Subsea completes innovative pipelay project

Published by
World Pipelines,


Subsea technology and services company, Cortez Subsea in partnership with Alam Maritim (M) Sdn Bhd, announced the successful completion of the first ever subsea pipeline using the Zap-Lok™ mechanical connector, offshore Malaysia.

Cortez Subsea completes innovative pipelay project

The project championed new and proven technology for faster and more cost-effective completion of subsea pipelay and recorded a best average lay rate of 4.7 km in 24 hours with the rigid pipelay section completed within 20 days.

This lay rate is considerably faster than traditional welded pipelay and meant the project was completed at a cost saving. The pipeline system was developed specifically for the Tembikai Non-Associated Gas (TNAG) Development by Vestigo Petroleum Sdn Bhd, a wholly owned subsidiary of PETRONAS Carigali Sdn Bhd. It uses NOV-Tuboscope Zap-Lok™ connectors to link the rigid pipeline via diverless connections.

The work included the engineering, procurement, construction, installation and pre-commissioning of the pipeline system and was delivered from Cortez Subsea’s office in Kuala Lumpur.

Alasdair Cowie, Managing Director of Cortez Subsea, said: “We pioneer the latest developments to support our clients with quicker, safer and cleaner techniques.

“We championed the Zap-Lok™ mechanical interference connector as a weld-free alternative to traditional pipelay. This is the first time this technology, which is much faster and more efficient, has been used offshore Malaysia. “In another industry first, the rigid pipe was connected to flexible risers using a Stinger Deployed Diverless Connector (SDDC), which we brought to the market in partnership with AFGlobal. Using a Remotely Operated Vehicle (ROV) and a deployment frame, the connection is made from the pipeline to the host facility without the use of divers.

“A complete diverless approach reduces cost and increases safety for the team offshore and this mechanical alternative to welding results in a safer work environment, which is free from hot-work and radiography.

“A reduction of reliance on equipment and people, thanks to the technology, allowed us to reduce our carbon footprint. At Cortez, we form genuine partnerships and cooperate to support and lead the development of services to conquer new and innovative subsea frontiers and deliver projects to save our customers money.

“The hope is that the industry will continue to adapt and use new technology as the key to unlock the world’s energy resources and keep the subsea industry at the forefront of innovation.”

Read the article online at: https://www.worldpipelines.com/project-news/21072020/cortez-subsea-completes-innovative-pipelay-project/

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