Project Overview
The WP02A scope involved the installation engineering for a 35-tonne reaction anchor, including a 200-tonne pre-pull verification, the test loading applied to confirm anchor holding capacity before it is brought into permanent service. Grispen delivered the complete installation procedure documentation for this operation.
The Engineering Challenge
Anchor installation is a multi-step offshore operation: overboarding from the vessel deck, controlled deployment to the seabed, precise landing within a defined target box, and finally a pre-pull load test to verify holding capacity. Each step has distinct engineering and procedural requirements, and the entire sequence must be documented clearly enough for the offshore installation crew to execute safely and efficiently.
Grispen's Solution
Grispen produced a fully illustrated, step-by-step installation procedure covering anchor overboarding, deployment, landing target verification, and the 200-tonne pre-pull test sequence, including chain catenary geometry, vessel positioning requirements, and landing target coordinates. The deliverable combined engineering rigour with the practical clarity required for offshore execution.
Scope of Work Delivered
- Reaction anchor overboarding and deployment procedure
- Landing target box definition and verification
- 200-tonne pre-pull test sequence engineering
- Chain catenary and vessel positioning analysis
- Step-by-step illustrated installation procedure
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.
WP02A highlights Grispen's strength in producing offshore installation procedures that are not only technically rigorous but genuinely usable by an offshore crew under real operational conditions, a capability that differentiates true installation engineering from desk-based calculation alone.