• Markets
    Offshore wind
    Offshore wind
    Oil and gas
    Oil and gas
    Geothermal energy
    Geothermal energy
    Civil works
    Civil works
    Salvage
    Salvage
    Leisure
    Leisure
    Contact sales
  • Products
    Cranes
    Cranes
    Pipelay
    Pipelay
    Renewables solutions
    Renewables solutions
    Drilling
    Drilling
    Offshore wind
    Offshore wind
    Heave compensation
    Heave compensation
    Winches
    Rentals & retrofits
    References
    Brochures
    Contact sales
  • Services
    MyHuisman
    MyHuisman - your gateway to services
    Remote Support
    We offer 24/7 a full range of services
    On-site Support
    Huisman Services provides on-site support
    Upgrades & Modifications
    Huisman provides turn-key technical solutions
    Parts Delivery and Advice
    Huisman offers spare parts advice and spare parts
    Training
    We offer suitable training programmes
    Service Agreement
    We strive for a long-term relationship
    Whenever & Wherever You Need Us
    Huisman Services is available whenever you need us
    Contact Huisman Services
  • Careers
    Working at Huisman
    Working at Huisman
    New Perspectives
    New Perspectives
    View our vacancies
    View our vacancies
    Contact recruitment
  • News & downloads
    Brochures
    Download our product brochures
    Press releases
    News about Huisman and our products
  • About Huisman
    Company profile
    Company profile
    QESH
    QESH
    Mission, vision & values
    Mission, vision & values
    Terms & conditions
    Terms & conditions
    Huisman worldwide
    Huisman worldwide
    Contact us
    Contact us
Login My Huisman
  • contact
  • en
    cnnl
Pipelay
/ Home Products Pipelay J-lay

/ J-lay

J-lay is used to install rigid pipelines in deep water. With a J-lay system, pipe stalks, consisting of up to six pipes with a total length of 72m, are upended and welded to the seagoing pipe in a near vertical ramp.

 

The ramp angle is adjusted so that it is in line with the pipe catenary to the seabed. This way bending of the pipe is kept to a minimum. The J-lay method is very suitable for deepwater because the pipe leaves the lay system in an almost vertical position and the pipeline is only bent (once) during installation (at the seabed). This reduced amount of bending is beneficial for installing pipelines that are sensitive to fatigue. Compared to other lay methods, J-lay has a relatively low production rate due to the single position welding of the pipe. The J-lay method is less suitable for shallow waters as this requires a departure angle close to horizontal.

 

We have solid experience in delivering complete J-lay systems including tower structures, tower angle adjustment systems, pipe handling equipment, line-up systems and the control system.

Quick links
photos technical specifications references
525mt J-lay System Saipem 7000, Saipem
525mt J-lay System Saipem 7000, Saipem
1,050mt J-lay System Balder, Heerema
1,050mt J-lay System Balder, Heerema

/ features

  • Suitable for installation of deepwater rigid subsea pipelines;
  • Suitable for installation of large diameter and concrete coated pipelines;
  • Suitable for fatigue sensitive pipes such as risers;
  • Suitable for the installation of special items such as PLETs;
  • Low production rate due to the single welding station;
  • Very high lay capacity;
  • Less suitable for shallow water pipeline installation.

/ brochure

Pipelay Brochure
All downloads

/ references

/ 5,000mt Offshore Mast Crane, 36mt Pedestal Mounted Offshore Crane, 600mt S-lay System and 750mt J-lay System
/ 1,050mt J-lay System
/ 525mt J-lay System
/ tell us about your challenges
Contact your Sales Manager or our Sales Team
+31 88 070 2222 sales@huisman-nl.com

/ Terms

Privacy policy
Cookie statement
Disclaimer
Responsible disclosure

/ contact

Head office
Sales
Service Sales
Recruitment

/ follow Huisman

Copyright 2023 © Huisman Equipment B.V.