Design Of Subsea Pipelines And Risers
Target Audience:
This course is intended for professionals involved in the engineering, design, and management of subsea pipeline and riser systems, including:
- Pipeline and subsea engineers seeking to deepen their understanding of design principles and methodologies.
- Design and structural engineers transitioning into the offshore and subsea sector.
- Regulatory and compliance officers reviewing or approving pipeline and riser designs.
- Graduate engineers and technical trainees entering the oil and gas or subsea design domain.
Course Objectives:
By the end of this course, participants will be able to:
- Understand the fundamentals of subsea pipeline and riser systems, including key functions, configurations, and operational contexts.
- Analyze key design considerations, such as hydrodynamic loads, seabed interaction, thermal expansion, and material selection.
- Understand riser types (e.g., flexible, rigid, hybrid) and configurations (e.g., SCR, lazy wave, free-standing) and their design implications.
Module Highlight
Introduction to Subsea Pipelines and Risers
- Overview of subsea field development
- Functions and types of subsea pipelines and risers
- Key terminology and definitions
- Field layout considerations and system configurations
- Safety Consideration
Design Codes, Standards and Regulations
- Introduction to industry codes (DNV-ST-F101, DNV-RP-F105, API RP 1111, ISO 13623)
- Regulatory requirements and environmental compliance
- Design documentation and verification processes
Pipeline Design Principles
- Design basis and data collection (environmental, operational, geotechnical)
- Pipeline route selection and seabed survey considerations
- Wall thickness design and pressure containment
- Stability on the seabed (on-bottom stability analysis)
- Thermal expansion and upheaval buckling
Riser Design Fundamentals
- Types of risers: flexible, rigid, hybrid
- Riser configurations: SCR, lazy wave, steep wave, free-standing
- Riser response to environmental loading (waves, currents, vortex-induced vibration)
- Dynamic analysis principles and fatigue design
- Riser design case studies
Material Selection and Corrosion Protection
- Pipeline and riser material selection (carbon steel, CRA, flexible materials)
- External and internal corrosion mechanisms
- Corrosion protection: coatings, cathodic protection, corrosion inhibitors
- Flow assurance and chemical injection considerations
Hydrodynamic and Geotechnical Considerations
- Hydrodynamic loading: wave, current, and vortex-induced vibrations
- Geotechnical interaction: soil-pipe interaction, trenching, and burial
- Free span analysis and mitigation techniques
Thermal and Flow Assurance Design
- Heat transfer and insulation
- Pipeline cooling/heating
- Hydrate and wax management
- Slugging and multiphase flow considerations
Installation Design and Methods
- Overview of pipeline and riser installation techniques
- Riser installation methods and challenges
- Design for installation: allowable stresses, loads, and fatigue
- Installation aids: PLETs, PLEMs, buoyancy modules
Integrity Management and Failure Modes
- Common failure modes: corrosion, fatigue, mechanical damage, buckling
- Inspection, monitoring, and maintenance strategies
- Emergency response and repair techniques
- Integrity management systems and documentation
Case Studies and Practical Applications
- Real-world design case studies of subsea pipelines and risers
- Interactive exercises on design challenges and solutions
- Group-based design project or simulation (optional)
- Review of key learnings and Q and A