Offshore construction for FPSOs – delivering margin, speed and certainty

Offshore construction is the work that brings an offshore energy project to life. It’s a chain of interdependent phases: positioning, construction support, and foundation or mooring system installation. Each stage brings its own challenges. While design work may be finalised early, offshore success depends on how well those plans adapt to real-world conditions.

Momentum is built offshore – in how well operations are executed, adapted and aligned. When offshore construction is tightly coordinated, it becomes a powerful lever for unlocking schedule certainty, optimising vessel time and driving long-term value. 

This is especially true for floating production storage and offloading (FPSO) projects. Complex by design, they offer significant opportunity for teams who know how to align planning with performance. 

Every hour offshore counts

A new generation of FPSO projects is coming online, and expectations around delivery are rising. According to a recent whitepaper by Rystad Energy, more than 90 FPSO developments are forecast between 2021 and 2030, with $70 billion in capital expenditure projected across South America, Africa and Asia. 

But approvals are only the starting line. As timelines tighten, execution becomes the defining factor. From anchor drop to production ramp-up, every decision matters. Progress depends on disciplined execution that reduces time offshore through clarity, coordination and control - both on deck and onshore.

Integrating systems for predictable installation 

Many offshore setbacks stem not from flawed engineering, but from disconnects between plan and execution. These gaps widen when data, tools and teams operate in silos. 

Acteon’s positioning and construction support services help close this gap. Real-time metrology, inertial navigation systems and ultra-short baseline tracking enable precision installation - even in low visibility or dynamic sea conditions. When systems are designed to integrate with each other and with the crew, installation becomes more responsive and predictable. 

Access to robust site investigation data can also drive better offshore performance. Acteon’s geotechnical engineering services, including the portable remotely operated drill (PROD) system, enable accurate seabed data collection in deep water and challenging soils. Better data leads to better design, more efficient anchoring choices and greater control offshore.

Laying strong foundations for certainty and value

Foundation installation brings its own complexities. Projects involving XL foundations often face challenges like late mobilisation, refusal layers or inconsistent soil strength. These are common in both oil and gas and offshore wind projects - but with the right integration and equipment, they don’t have to impact timelines.

Contractors who provide integrated site survey, piling, drilling and grouting into a single delivery model reduce friction between phases and enable more responsive execution. Drive-drill-drive methods improve performance in hard subsoils, while high-output grout mixers speed up pile-to-pile transitions. Together, these innovations ensure tighter logistics and smoother operations.

Responding to our customers’ challenges 

With more FPSOs moving forward and surface capex rising from $6 billion to $9 billion in 2023 alone, the opportunity – and complexity – is growing. As timelines compress and installation windows narrow, offshore construction plays a bigger role than ever in keeping projects on track.  

For FPSOs, with the right coordination, expertise and partnership approach, every hour counts. 

At Acteon, we bring together operational and engineering expertise across the project lifecycle to do exactly that. Our offshore construction approach is built on insight, modular tools and integrated delivery. We help energy companies reduce offshore duration, improve certainty and protect critical milestones.