Subsea7 installs 119 kilometers of pipe ahead of schedule for Guyana’s Gas-to-Energy project

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Subsea7 said offshore pipelay for the Guyana Gas-to-Energy project was delivered 10-days ahead of schedule.

“This was our first project in Guyana and involved the fabrication and S-Lay of 119 kilometers of rigid pipeline using Seven Borealis,” said Chief Executive Officer, John Evans. “The pipelay scope was successfully completed 10 days ahead of schedule, and the Seven Borealis is now mobilizing to Saudi Arabia for work on Aramco’s Zuluf field.” 

Subsea7 said the installation of the pipe required 9,608 pipe joints, in water depths of up to 1,400 meters.

ExxonMobil had awarded the offshore pipelay contract to Subsea7 and Van Oord for the fabrication and installation of the pipeline and accompanying infrastructure. The substantial award was valued in the range US$150-300 million, according to a Subsea7 presentation. 

The onshore pipelay contract was awarded to SICIM and Guyanese firm, GAICO Construction and General Services Inc. 

The Gas-to-Energy project needs the pipeline to transport gas from Exxon’s Liza field to an onshore integrated gas processing facility. There, dry gas will be separated for domestic power generation and the liquids will be subjected to various forms of commercialization.

The Guyana government plans to cut the cost of power to consumers by 50%. 

The Liza 1 and 2 projects are each undergoing a two-week third quarter shutdown period to facilitate the pipeline hookup. This will result in deferred production at the projects, which collectively produce oil at approximately 400,000 barrels per day (b/d).

Exxon expects to have the pipeline ready to deliver gas to shore in 2024, though first gas is not expected until 2025. 

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