www.pdi-ltd.com

Project Development International LtdPDi House, 137 GallowgateAberdeen, AB25 1BUUnited Kingdom

PDi’s scope included:• 400Te RDS Grillage and seafastening design;• 400Te Reel seafastening design;• Chute Grillage and seafastening design:• Tensioner Grillage and seafastening design;• Turning Bollard modifications and seafasteningdesign;

• Uraduct installation work platform design andseafastening;

• Additional structural verification checks relevant tothe project.

The Dunbar, Ellon and Grant oil and gas fields (alsoknown as the Alwyn South area) are located in thesoutheastern part of the East Shetland Basin,approximately 140 km E of the Shetland Islands.

Bibby Offshore Ltd (BOL) approached PDi to providestructural design packages associated with an umbilicallay spread onboard the Olympic Ares as part of the Ellon& Grant Life Extension Project for Total.

Client Bibby Offshore LtdLocation UKCS, Northern North SeaDate March 2015 (6 weeks)

PDi were contracted to provide the design deliverables to BibbyOffshore Ltd as part of the Total Ellon & Grant Field Life ExtensionProject.

STRUCTURAL DESIGN AND SEAFASTENING