Flex-lay

One method for installing flexible pipelines, risers and in-line structures is by Flex-lay. A Flex-lay system mainly consists of a vertical ramp equipped with one or more tensioners and a chute or wheel on top.


The ramp is kept upright by two fixed struts to the deck but it is also possible to equip it with an adjuster system to change the working angle of the ramp. The flexible pipe is spooled from a reel, carousel or basket, bent over the chute and guided into the tensioners and onto the seabed.

 

The advantages gained by the less complex installation and abandonment & recovery procedure for pipelines and in-line structures and the fact that the pipelines are less sensitive to fatique due to their flexibility make Flex-lay an efficient method for their installation. As a Flex-lay system is not suitable for the installation of rigid pipe, it is often combined with other pipelay methods onboard.

 

Our Flex-lay Systems

Huisman is world market leader in the turnkey delivery of pipelay systems and related stand-alone equipment. We are experienced in delivering state of the art Flex-lay systems - from concept design to start-up of operations - including tower structures, tensioners, A&R winches and sheaves, hang-off clamps, upper and lower chutes, reel drive units for multiple reels and power and control systems. In addition, our Engineers are continuously researching new techniques and applications to offer our clients the most efficient equipment in the market.


Features

  • Suitable for installation of flexible pipelines, risers and in-line structures
  • Suitable for shallow to deep waters
  • High production rate
  • Pipes are less sensitive to fatigue due to flexibility
  • Less complex installation and abandonment & recovery procedure for pipelines and in-line structures
  • Not suited for installation of rigid pipe

 


Product related news

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150mt Tiltable Flex-lay System Toisa Proteus
440mt Multi-lay System Seven Seas
340mt Tiltable Flex-lay System Polar Queen
Vertical-lay System Seaway Eagle

References

2008
150mt Tiltable Flex-lay System - Acergy

2008
440mt Multi-lay System - Subsea 7

2007
120mt Vertical-lay System - Subsea 7

2007
340mt Tiltable Flex-lay System - Acergy

2007
340mt Tiltable Flex-lay system - Acergy

View all references