Design of a novel installation device for a subsea production system

• A novel installation device for a subsea production system was designed.
• The relative installation method was proposed.
• Numerical simulation and theoretical computation were performed to validate the feasibility of the novel design.

Subsea production systems (SPSs) have dominated the exploration of deep-sea oil and gas fields because of their economic superiority. SPS is a high-investment and high-risk technology. A floating installation device (FID) and an installation method for the SPS using this device were designed in this study. The device is made of buoyant materials, allowing both the SPS and the FID to be kept in a suspended state. Thus, the restriction caused by the great weight of the SPS can be avoided. The dynamic response of the chain system and FID was analysed according to environmental loads and material characteristics. The feasibility of the design was validated through numerical simulation and theoretical computation.