SIST EN ISO 13624-1:2010 PDF

EN ISO 13624-1:2009 - Marine drilling riser equipment (overview)

EN ISO 13624-1:2009 provides guidance on the design, selection, operation and maintenance of marine drilling riser systems used in floating drilling operations. Published by CEN and identical to ISO 13624-1:2009, the standard treats the marine drilling riser as a system - including the tensioner system and all equipment between the upper flex/ball joint top connection and the bottom of the wellhead conductor/outer casing. It explicitly excludes the diverter and is limited to operations with a subsea BOP stack deployed on the seafloor.

Key topics and technical requirements

• System perspective: Emphasizes that individual components must be selected for overall system performance rather than as isolated parts.
• Component function and selection: Guidance on tensioners, telescopic (slip) joints, riser joints, lower marine riser package (LMRP), flex/ball joints, buoyancy, choke/kill lines, riser running equipment and specialty fittings.
• Riser response analysis: Procedures for modelling dynamic behaviour, coupled/decoupled analyses, drift-off/drive-off, recoil, hang-off conditions and high-current environments.
• Design considerations: Basis for design decisions, modelling approaches and criteria for primary-load-path components. Notes that these components should align with load classifications in ISO 13625.
• Operations and procedures: Requirements for riser operations manuals, run/retrieval procedures, installed riser operations and emergency disconnect (e.g., sudden storm or drift-off).
• Integrity, inspection and maintenance: Standards for inspection planning, in-service inspection, maintenance after retrieval, transportation/handling and record keeping. Includes guidance on fatigue assessment and weak-point analysis.
• Special situations: Coverage for deepwater drilling, guidelineless systems, cold-weather and H2S considerations, and riser collapse scenarios.

Practical applications - who uses it and why

This standard is intended for:

• Riser designers and engineers selecting materials, components and layouts
• Offshore contractors and rig operators responsible for riser running, installation and emergency procedures
• Maintenance and inspection teams planning in-service and post-retrieval inspections
• Equipment manufacturers defining performance and testing requirements
• Regulatory/compliance personnel referencing industry best practices for floating drilling riser systems

Benefits include improved system reliability, clearer operational procedures, risk reduction during running/retrieval and a consistent framework for riser analysis in deepwater and challenging environments.

Related standards

• ISO 13625 - load classifications for riser primary-load-path components (referenced for consistency)
• ISO 13624-2 - technical report on deepwater drilling riser methodologies, operations and integrity (companion guidance)

Keywords: EN ISO 13624-1:2009, marine drilling riser, riser system, floating drilling operations, riser analysis, tensioner system, LMRP, riser integrity, deepwater drilling.