Project Phase
FEED
Disciplines
Subsea Discipline Engineers, Subsurface Interface, Project Engineers, Project Services, Front End Development Engineers
Location
Deepwater South China Sea
Service
Owner's Project Management & Engineering
Summary
Infinity was responsible for the FEED delivery of the subsea hardware scope on a deepwater development in the South China Sea, covering the subsea production system through to a defined package basis.
Overview
The development sits in deep water in a region with a limited established supply chain compared with the North Sea, which places more weight on getting the hardware definition right before enquiry. Infinity held the subsea hardware scope through FEED, taking the system from a concept-level architecture to a defined equipment basis capable of supporting procurement, covering trees, controls, structures and the interfaces between them.
Objective
- Define the subsea production system hardware to a FEED level of definition
- Establish equipment and interface requirements suitable for enquiry
- Resolve interfaces between hardware packages before procurement
- Deliver a subsea basis consistent with deepwater installation and intervention constraints
South China Sea
Delivery Phase
Integrated Capability
Key findings
- Hardware definition maturity at the end of FEED determined how much risk transferred into procurement
- Interface resolution between packages was the highest-value activity in the phase
- Well count and drill-centre layout, set by the subsurface development plan, shaped the hardware basis more than throughput
- Regional supply chain differences required the equipment basis to be defined more tightly than a North Sea equivalent
- A single team holding the full hardware scope avoided the interface gaps that arise when packages are split
Differentiator
Infinity’s subsea hardware specialists cover trees, controls, structures and umbilicals as one integrated capability rather than separate disciplines, so the interfaces between packages are owned rather than negotiated between teams.
Outcome
The development progressed from FEED with a defined subsea hardware basis and resolved package interfaces. It remains one of Infinity’s most geographically distant deepwater deliveries and demonstrates capability well beyond the North Sea.
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