Sevan cylindrical hull unit operating offshore
Sevan’s Proprietary Cylindrical Hull Technology: A Protected, Proven Platform Powering the Next Generation of Offshore Floaters
For more than 25 years, Sevan Deepwater Technology has been a leading innovator in offshore floating solutions.
As the core of this legacy is our patented cylindrical hull technology—a distinctive and thorouhly protected design
platform in the global offshore industry. This intellectual property, supported by a continuously updated patent portfolio,
forms the foundation of Sevan’s long-term competitive advantage and our ability to offer a uniquely reliable and
future-ready solution to operators worldwide.
A Strong IP Position Built Over Two Decades
Sevan’s technology is protected by a robust set of international patents covering the key features, geometries, and functional principles of the cylindrical hull. These patents secure our exclusive rights to the concept and ensure that clients receive a floater design backed by clearly established and enforceable IP protection.
Our continued renewal, expansion, and defence of these rights enable Sevan to maintain a unique position in the market. Few offshore floater concepts can claim such a long-standing and well-protected IP foundation—one that has been validated repeatedly through actual operations.
A Platform Strengthened Through Experience
Over the past two decades, twelve Sevan-designed cylindrical units have been delivered worldwide across production, drilling, and accommodation applications. This operating track record provides clients with a rare combination of:
- A proven design with decades of field verification
- Known performance characteristics across different environments
- A robust basis for redeployment, modification, and extension
While many floater concepts rely on theoretical performance or limited operational hours, Sevan’s cylindrical hull has accumulated a deep operational history. This experience, combined with our IP protection, forms a powerful platform for both mature offshore regions and new frontiers.
IP Protection as a Strategic Advantage for Clients
Choosing a floater design backed by strong patent rights gives operators several practical advantages:
- Long-term technology security — clarity on ownership and freedom to operate
- Reduced technology risk — field-proven characteristics backed by decades of research
- Predictability in engineering and execution — design maturity backed by repeatable methods
- Confidence in future modifications and redeployment — IP certainty across the lifecycle
For redeployment projects in particular, Sevan’s protected and proven hull design provides a secure technological framework that significantly reduces the risk associated with reengineering and recertification.
A Unified Offering Through Seatrium
Sevan was integrated into SembCorp in 2018, and then combined with SSP Offshore into Sevan SSP. With the entrance of SembCorp into Seatrium, Sevan was renamed Sevan Deepwater Technology, carrying forward legacy IP and experience and offers its unique design with one of the world’s largest offshore engineering and construction groups. This provides clients with:
- A single accountable counterparty from concept through EPC
- Global yard and supply-chain capacity
- Accelerated delivery schedules based on repeatable, IP-protected design
- Assurance that the underlying technology is both exclusive and mature
The combination of strong patent protection and industrial scale allows Sevan to offer a delivery model that is both lower risk and faster to market.
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