PHOTOS: Express installing subsea manifolds « Helix Currents

Photos courtesy of Helix Subsea Construction Field Engineers Robert Bailey & Matt Gonzales.

Taken on board Helix ESG’s pipelay vessel, Express, these photos show two Pipeline End Terminal manifolds (PLETS) as they are hoisted off an adjacent supply boat and lowered down to the seabed.

A PLET is used on one, or both ends of pipelines to provide connection point from the pipeline to existing subsea structures in place.  The existing structure may be a subsea tree, another PLET or a manifold and are connected by a jumper.  The PLETs and other subsea structures have upward looking connectors while the jumpers have downward looking connectors.  This configuration allows the jumpers to be installed using Remotely Operated Vehicles (ROVs).

Helix Subsea Construction, a business unit of Helix ESG, is installing this PLET as part of the overall scope of Subsea Umbilical, Riser and Flowline (SURF) work for Noble Energy at the Noa Field, offshore Israel. The field is in approximately 2,556ft of water (779m) and is being developed for natural gas.

Source: PHOTOS: Express installing subsea manifolds « Helix Currents.

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