A new update to IOGP’s design guidance for Subsea Carbon Capture and storage systems expands on system design and operation guidance, addressing flow assurance, materials and integrity limits, injection operating envelopes, and alignment with barrier and monitoring requirements.
This IOGP Report 665 guidance is intended for incorporation into relevant standards by Standards Developing Organizations (SDOs) as the CCS landscape evolves.
First published in 2024, IOGP Report 665 – Design Guidance for Subsea Carbon Capture and Storage (CCS) Systems provides industry guidance to support the safe and reliable design of subsea CCS infrastructure, an area where standards and regulations are still evolving.
The update focuses on refining system design considerations, and operational assumptions specific to CO₂ service, while maintaining consistency with existing subsea engineering standards where applicable.
Report 665 continues to offer a common reference point for operators, suppliers, and regulators, supporting early-phase project development and contributing to the ongoing maturation of subsea CCS design practices.
“It’s been a rewarding 24 months for the Subsea CCS Expert Group, delivering two reports and already revising Report 665 based on industry feedback,” says Diana Khatun, Principal Manager – Well Operations and Regulatory Engagement. “I would like to acknowledge the hard work, energy, and commitment of the Expert Group Members and Chairs, this progress simply wouldn’t have been possible without them. The future of subsea CCS is exciting, and it’s great to see the uptake and practical use of this work across the industry.”
IOGP Report 665 – Design guidance for subsea carbon capture and storage systems is available to download from the IOGP Publications Library.
