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) as well as alternative installation methods such as mechanical connectors.

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

Level

Application

Duration

4 Days

Study hours

28

Location

Lagos

Upcoming dates

Lagos

10 December 2019 - 13 December 2019

Request for a quote to get a training date

Construction of subsea pipelines - course contents

DAY 1

S-lay

  • 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

J-lay

  • What is J-lay?
  • 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

Bundles and towed installation

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

Bundles and towed installation

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

DAY 3

Landfalls

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

Tie-ins

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

Pre-commissioning

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

Quality, safety, health and environment (QSHE)

  • Law
  • QA
  • HSE management
  • Risk assessment
  • Health
  • Safety
  • Environmental

Survey

  • Survey methods
  • Survey operations

DAY 4

Seabed modification

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

Post-lay trenching and burial

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

Pipe supply, welding, NDT and ECA

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