ISO 13628-1:2005

Overview - ISO 13628-1:2005 (Subsea production systems)

ISO 13628-1:2005 is the umbrella international standard that sets general requirements and recommendations for the design, operation and life‑cycle management of complete subsea production systems. Published as the second edition in 2005, it covers system‑level topics from concept and design through manufacturing, testing, installation, operation, maintenance and decommissioning. The standard is intended to govern detailed subsystem standards (e.g., trees, umbilicals, control systems) while providing additional requirements where subsystem standards do not apply (for example, system design, structures, manifolds, lifting devices, and colour/marking).

Key topics and technical requirements

• System and interface descriptions (Clause 4): defines system boundaries and interface limits for subsystems.
• Design (Clause 5): high‑level design criteria, field development planning, design loads, and subsystem design (wellheads, trees, flowlines, manifolds, risers, ROV/ROT interfaces).
• Materials and corrosion protection (Clause 6): material evaluation and selection for metallic and non‑metallic components, bolting, and external protection strategies.
• Manufacturing and testing (Clause 7): production testing, integration testing and test procedures.
• Operations (Clause 8): handling, installation, drilling and completion support, hook‑up & commissioning, well intervention, maintenance and decommissioning.
• Documentation (Clause 9): engineering, manufacturing, operating, maintenance and as‑installed records.
• Normative/Informative annexes: includes colours & marking, commissioning procedures, integration testing, flow assurance, barrier philosophy, lifting device requirements and datasheets.

Note: the standard explicitly addresses “deep water” considerations (typically 610 m to 1 830 m) and clarifies that complementary ISO 13628 parts take precedence where conflicts exist.

Practical applications - who uses it

ISO 13628-1 is used by:

• Subsea engineers and system designers for system architecture and interface definition.
• EPC contractors and manufacturers for procurement, fabrication and factory testing requirements.
• Offshore operators and asset owners for commissioning, operations, maintenance and decommissioning practices.
• ROV/ROT teams, surveyors, classification societies and regulatory bodies for installation, intervention and compliance checks.
• Project planners for field development and flow assurance input to subsea layouts.

Practical uses include developing specifications, preparing tender documents, confirming interface limits between subsystems (trees, umbilicals, flowlines), planning commissioning tests, and documenting as‑installed records.

Related standards

• ISO 13628 series (Parts 2, 3, 4, 5, 6, 8, 9) - subsystem standards for flexible pipes, wellhead/tree equipment, umbilicals, control systems, ROV/ROT interfaces.
• ISO 10423 (wellhead & christmas tree equipment), API RP 2A (offshore platform design), DNV2.7‑1 (offshore freight containers).

Keywords: ISO 13628-1, subsea production systems, subsea design, subsea operations, subsea engineering, flowlines, umbilicals, manifolds, subsea standards, commissioning, decommissioning.