What is SBM Offshore's Seawater Intake Riser (SWIR) technology?

SWIR is an advanced marine riser system designed to pull cold seawater from deep ocean depths directly to an FPSO topside. This colder water drastically improves the efficiency of onboard cooling systems compared to standard surface-water intake methods.

Why is the ABS approval significant for this deepwater technology?

ABS validation serves as an independent technical verification that the system meets stringent international safety, hydrodynamic, and structural design standards. This endorsement eliminates key regulatory hurdles and allows operators like Shell to deploy the technology on commercial projects.

How does deepwater cooling reduce FPSO greenhouse gas emissions?

By leveraging naturally chilled deep seawater, FPSO topsides require far less mechanical refrigeration and compression power. This reduction in electrical demand directly cuts the volume of fuel gas burned by onboard power turbines, thereby lowering operational emissions.

Offshore Energy · May 26, 2026 (May 26) · 1 min read

ABS endorses SBM Offshore’s Shell-backed FPSO deepwater cooling tech

Shell plc

Isometric technical illustration of offshore oil and gas operations with drillship and support vessel — Illustration: Shell plc

Analysis

AI-assisted analysis · reviewed by Yuri Kan

Dutch floater specialist SBM Offshore has secured regulatory validation from classification society ABS for its innovative deepwater seawater intake riser (SWIR) cooling system, developed in partnership with Shell. This technical endorsement confirms the viability of drawing colder, deep-sea water to optimize thermal management on floating production storage and offloading (FPSO) units. The milestone represents a major step toward lowering topside energy consumption and greenhouse gas emissions in deepwater offshore production.

Key Facts

ABS granted formal approval in principle for SBM Offshore's proprietary Seawater Intake Riser (SWIR) technology.
The SWIR system was developed in close collaboration with global energy major Shell to support deepwater FPSO operations.
The technology utilizes deep ocean water—which is significantly colder than surface water—to provide highly efficient topside process cooling.
By reducing the thermal load and power required for mechanical chilling, the system directly curbs fuel gas consumption and operational emissions on floaters.
SBM Offshore holds a leading global market share in the engineering, procurement, construction, and operation of complex FPSO vessels.
Classification society ABS conducted rigorous engineering assessments to verify the structural integrity and hydrodynamic feasibility of the deepwater riser design.

Background & Context

Deepwater oil and gas processing requires substantial cooling capacity for produced hydrocarbons, gas compression trains, and power generation units. Historically, FPSO vessels have relied on surface seawater cooling, which fluctuates in temperature and requires energy-intensive secondary chilling systems in tropical offshore basins. As operators face increasing pressure under Scope 1 decarbonization mandates, energy majors like Shell are prioritizing technological modifications that improve the thermal efficiency of offshore production hubs.

Market Impact

This ABS endorsement materially de-risks SBM Offshore's cooling technology, paving the way for commercial deployment across next-generation deepwater FPSOs. For field operators, drawing low-temperature water from depths of several hundred meters translates to lower parasitic power demand and a measurable reduction in operational carbon intensity per barrel. The breakthrough provides SBM Offshore with a competitive technological edge in forthcoming deepwater tenders across prolific basins such as Brazil's pre-salt and Guyana. Furthermore, the collaboration highlights how strategic joint development between tier-one contractors and supermajors is driving incremental, high-impact efficiency gains in offshore infrastructure.

What to Watch

Industry observers should monitor the formal integration of the SWIR system into upcoming EPC contracts for Shell's deepwater floater portfolio. SBM Offshore is expected to pursue full operational deployment during its next wave of Fast4Ward FPSO hull designs. Subsequent milestones will center on real-world hydrodynamic performance validation and lifecycle maintenance monitoring during initial field installation.

Frequently Asked Questions

What is SBM Offshore's Seawater Intake Riser (SWIR) technology?: SWIR is an advanced marine riser system designed to pull cold seawater from deep ocean depths directly to an FPSO topside. This colder water drastically improves the efficiency of onboard cooling systems compared to standard surface-water intake methods.
Why is the ABS approval significant for this deepwater technology?: ABS validation serves as an independent technical verification that the system meets stringent international safety, hydrodynamic, and structural design standards. This endorsement eliminates key regulatory hurdles and allows operators like Shell to deploy the technology on commercial projects.
How does deepwater cooling reduce FPSO greenhouse gas emissions?: By leveraging naturally chilled deep seawater, FPSO topsides require far less mechanical refrigeration and compression power. This reduction in electrical demand directly cuts the volume of fuel gas burned by onboard power turbines, thereby lowering operational emissions.

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