Project Overview
Dalia Phase 2 is an extension to one of Total's flagship deepwater Angolan assets. Grispen, working with SAIPEM, delivered both installation aids engineering and seafastening design for the project's umbilical termination assemblies, hardware that connects subsea control umbilicals to their host structures.
The Engineering Challenge
Umbilical termination assemblies require engineering across two distinct phases: marine transport from fabrication yard to installation vessel (seafastening), and the subsea installation operation itself (installation aids). Each phase has different governing load cases and structural interface requirements, but both must be coordinated against the same underlying structure design.
Grispen's Solution
Grispen delivered an integrated package covering both seafastening design for ocean transport and installation aids engineering for the subsea placement operation, ensuring full traceability between the transport configuration and the installation procedure, both certified to DNV-ST-N001.
Scope of Work Delivered
- Umbilical termination assembly installation aids design
- Transport seafastening design (DNV-ST-N001)
- Structural interface verification between transport and installation phases
- Coordination with SAIPEM installation engineering
Our Delivery Process
Every Grispen engineering scope, regardless of size or client, passes through the same structured five-stage delivery method, ensuring consistent quality and full traceability from kick-off to final issue.
Dalia Phase 2 demonstrates Grispen's capability to manage the full transport-to-installation engineering chain for subsea hardware, a capability directly applicable to any operator seeking a single engineering partner across multiple project phases rather than fragmenting the scope across separate contracts.