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Cortez Subsea completes offshore project

In partnership with Alam Maritim (M) Sdn Bhd, Cortez Subsea has completed the first ever subsea pipeline using the Zap-Lok™ mechanical connector in offshore Malaysia.

For a fast, more cost-effective completion of the subsea pipeline, the project used the new technology which resulted in a best average lay rate of 4.7 km in 24 hours and saw the rigid pipelay section completed in 20 days.

Cortez Subsea said this lay rate is considerably faster than traditional welded pipelay, allowing the project to completed with considerable cost savings.

Developed specifically for specifically for the Tembikai Non-Associated Gas (TNAG) Development by Vestigo Petroleum Sdn Bhd, a wholly owned subsidiary of PETRONAS Carigali Sdn Bhd, the pipeline system used NOV-Tuboscope Zap-Lok™ connectors to link the rigid pipeline via diverless connections.

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

Cortez Subsea Managing Director Alasdair Cowie said the company pioneers the latest developments to support its clients with quicker, safer and cleaner techniques

“We championed the Zap-Lok mechanical interference connector as a weld-free alternative to traditional pipelay,” said Mr Cowie.

“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,” said Mr Cowie.

“This mechanical alternative to welding results in a safer work environment, which is free from hot-work and radiography.”

Mr Cowie said, owed to the technology, a reduction of equipment and people allowed Cortez Subsea to reduce its carbon footprint.

“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.”

For more information visit the Cortez Subsea website.

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