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Subsea Engineering and training experts

Since 1988

Jee Star Logo Construction of subsea pipelines

Construction of subsea pipelines

About the course

This course is a must if you need to improve your knowledge of offshore pipeline installation techniques. Enhance your appreciation of the capabilities of the latest pipe-lay vessels and equipment and gain confidence in identifying the best technical solutions for your projects. 

Explaining a variety of pipe-lay and pipeline protection methods for rigid and flexible risers, this course will develop your ability and confidence to select the most suitable method for different scenarios. Associated activities including surveying, diving and pre-commissioning are discussed, as well as the latest methods for decommissioning pipelines. This course also covers the construction process for risers, spools, stalk-ons, pipeline end manifolds (PLEMs) and terminations (PLETs) and alternative installation methods such as mechanical connectors.

Book by 3rd September to guarantee your place!

Learning outcomes

  • Summarise technical aspects of offshore pipeline installation with confidence
  • Select the most appropriate construction methods for different scenarios
  • Suggest mitigation options for issues affecting pipeline installation
  • Measure protection requirements
  • Appreciate the associated health, safety and environmental implications
  • Incorporate legal, quality and commercial considerations for offshore construction

View course contents
course bar chart Level Advanced
timer icon Duration 4 Days
clock Study Hours 28
world icon Location
Online, Aberdeen, Houston
Also available in house

Upcoming dates

calender Aberdeen
25 September 2018 - 28 September 2018
calender Online

About the Tutors

John French
MEng, CEng, MIMechE

John has been working in the oil and gas industry since 2002 and is responsible for overseeing all design projects, from pre-FEED studies through to detailed design engineering. John’s current focus is on developing low-cost solutions to reduce installation and development costs for marginal fields.

About the Tutors

Mike Hawkins
BTech (Hons) CEng FIMechE

Mike has over 30 years’ experience in the oil and gas industry and is Jee’s Technical Director. He has particular expertise in design, pipeline buckling, third party verification, freespan and FE analysis and fatigue assessment. 

Mike teaches the Reeling design calculations course.

Jee Star Logo Construction of subsea pipelines - course contents

Day 1


  • What is S-lay?
  • S-lay vessel types
  • S-lay process
  • S-lay market and vessels
  • Insulated lines
  • Lay curve control

Pipe supply, welding, NDT and ECA

  • Line pipe supply and specifications
  • Welding procedure
  • Welding methods
  • NDT
  • ECA

Day 2


  • What is J-lay?
  • J-lay sequence
  • J-lay projects
  • J-lay vessels
  • J-lay performance
  • Rapid pipe welding
  • Mechanical connectors
  • J-lay from drilling rig

Bundles and towed installation

  • What are bundles?
  • Bundle design
  • Bundle fabrication
  • Towhead structures
  • Towing methods
  • Insulation and heating systems
  • Deep-water bundles
  • Pros and cons of bundles
  • Surface tow

Installation of flexibles

  • Unbonded flexibles installation process
  • Umbilical cables
  • Bonded hoses


  • What is reel-lay?
  • Reel-lay process
  • Reel-lay market and vessels
  • Special considerations

Day 3


  • Pull ashore into cofferdam
  • Pull offshore from onshore construction site
  • Directionally – drilled landfalls 


  • Flanged connection by diver
  • Hyperbaric welding
  • Diverless tie-ins


  • Gauging and flooding
  • Hydrotesting
  • Dewatering, air and vacuum drying
  • Testing of valves and controls

Management systems

  • Law
  • QA
  • Commercial

Health, safety and environment

  • Health and safety management
  • Risk assessment
  • Health
  • Safety
  • Environmental


  • Survey methods
  • Survey operations

Day 4

Seabed modification

  • Sweeping
  • Rock removal
  • Protection
  • Rock dump
  • Concrete mattresses
  • Protective structures
  • Crossings

Post-lay trenching and burial

  • Ploughing
  • Jetting
  • Cutting
  • Cable trenching
  • Trench transitions
  • Backfilling

Diving and ROV operations

  • Diving and equipment
  • ROV operations

Decommissioning and abandonment

  • Legislation
  • Decommissioning in-situ
  • Recovery
  • Re-use
  • Costs

  An excellent course which has given me a great insight into the subject  

Adam Grady, Design Engineer, Trelleborg Offshore UK

  An interesting and enriching course  

Abubakar Oshiame, Installation Engineer, Total Upstream Nigeria

  Tutor was very nice and did a great job  

Meirong Huang, Pipeline Engineer, Chevron

  For someone new to the pipelay industry it gave an excellent overview of the end-to-end processes and an understanding of the different roles of the participants in the offshore oil and gas industry  

Moria Smith, Senior Engineer, IHC Merwede

  A very good overview of pipelines construction and subsea activities with supported hard copy material  

Tonci Urklovic, Engineer, Saipem

  This course gives an overview about all parts of construction and installation of pipelines  

Marko Hodak, Offshore Methods Engineer, Saipem

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