About the course

This is a vital course to help engineers understand contractors’ output, design houses to apply calculations to projects and regulatory bodies to follow up-to-date industry codes. With discussions around industry developments and the latest technologies, this course explains the principles of subsea pipeline design.

Providing guidance on routing, diameter sizing and materials selection, this course enhances awareness of the numerous factors which must be considered when designing a pipeline.

Explaining how to assess design calculations to industry codes, as well as pragmatic approaches to analysis techniques, the tutor will work through a number of exercises with you, to promote application of knowledge learnt.

Learning outcomes

  • Appreciate the issues affecting design and why pipelines are made the way they are
  • Choose the appropriate route, diameter and materials selection processes
  • Determine the most relevant corrosion protection methods
  • Perform calculations based on industry codes
  • Evaluate the respective benefits of industry developments and new technologies

Pipeline routing

Pipeline diameter

  • Rules for routing
  • Exercise
  • Route survey
  • Alignment sheets
  • Sizing for flow
  • Fluid properties
  • Flow fundamentals
  • Single-phase flow
  • Multi-phase flow

Thermal design and insulation

  • Need for thermal design
  • Fundamentals of heat transfer
  • Pipeline heat transfer
  • Insulation design considerations
  • Insulation systems
  • Application of insulation
  • Operational problems in deep water
  • Exercise

Materials specification


  • Material selection
  • Review of material properties
  • Specification of line pipe
  • Types of corrosion
  • Control measures

Design for strength

End expansion and spoolpieces

  • Design principles
  • Bursting
  • Collapse
  • Buckling and combined stresses
  • Strain-based design
  • Worked example
  • Exercise
  • End force and expansion factors
  • End expansion
  • Worked example
  • Temperature profile
  • Exercise
  • Spoolpieces
  • Worked example

On-bottom stability

End expansion and spoolpieces

  • Review of fundamentals
  • Oceanography
  • Hydrodynamics
  • Resistance
  • Stability analysis
  • Computational fluid dynamics
  • Worked example
  • Exercise
  • Bottom roughness analysis
  • Spans
  • Intervention