ISO 13628-11:2007

Overview - ISO 13628-11:2007 (Flexible pipe systems)

ISO 13628-11:2007 provides international guidelines for the design, analysis, manufacture, testing, installation and operation of flexible pipes and flexible pipe systems for onshore, subsea and marine applications. It covers both bonded and unbonded flexible pipe assemblies (pipe segments with end fittings) and their ancillary components, for sweet- and sour-service production including export and injection. The standard applies to static and dynamic systems used as flowlines, risers and jumpers, and addresses, in general terms, use of flexible pipes for offshore loading systems. It does not cover choke/kill lines or umbilical/control lines.

Key topics and technical requirements

ISO 13628-11:2007 complements ISO 13628-2 and ISO 13628-10 and includes guidance on:

• System, pipe and component description - definitions, configurations and interfaces for flexible pipe systems.
• Pipe design considerations - design overview, failure modes, design criteria and representative load cases.
• Materials - material selection and testing considerations for bonded and unbonded pipes, polymers, elastomers and metallic components.
• Analysis and global-response evaluation - recommended analysis techniques and load modelling for static and dynamic applications.
• Prototype testing and test protocols - classification, standard and special prototype tests and qualification procedures.
• Manufacturing, marking and storage - manufacturing processes for both pipe types, marking and storage guidance.
• Handling, transportation and installation - logistics, installation procedures, pre-commissioning and commissioning.
• Retrieval, reuse and integrity monitoring - retrieval/reuse considerations, failure modes, condition monitoring and inspection recommendations.
• Ancillary components and system interfaces - fittings, terminations and subsystem integration.

Practical applications and users

ISO 13628-11:2007 is used by:

• Offshore and subsea engineers designing flexible risers, flowlines and jumpers.
• Manufacturers of bonded and unbonded flexible pipe and end fittings.
• Project managers and contractors planning installation, handling and transportation.
• Inspection and integrity specialists implementing condition monitoring and reuse/retrieval strategies.
• Regulatory and procurement teams specifying minimum requirements for subsea flexible pipe systems.

Typical applications include subsea production systems, export lines, injection lines and offshore loading systems where flexible pipe performance, material compatibility (sweet/sour service), and dynamic behaviour are critical.

Related standards

• ISO 13628-2:2006 (Unbonded flexible pipe systems)
• ISO 13628-10:2005 (Specification for bonded flexible pipe) (ISO 13628-11:2007 supplements these parts and aligns with API/RP 17B-derived practices.)

Keywords: ISO 13628-11:2007, flexible pipe systems, subsea, marine, bonded pipe, unbonded pipe, risers, flowlines, jumpers, flexible pipe design, prototype testing, integrity monitoring.