The North Rankin ‘A’ Foundation Improvement Project

Colin Roberts

Joint Venture Partners

Location of the NRA with respect to Karratha

Aerial view of Domgas & LNG onshore facilities – Burrup Peninsula

Aerial view of Train Construction at Withnell Bay

Overall Work Planned in the Foundation Improvement Project

Closer Detail

View of Guy-wires Installed on the FSS

+12 metre Deck Layout

View of NRA Showing +12m Decks

Leg B2 - +12m Level

Congestion

Makeshift Storage +36m Level

Drill Production Deck with Pipe Laydown taken over for Storage

King Bay Supply Base

Longyear 55 Diamond Drill Rig on B4

Typical Pile & Riser Arrangement

Casing and Jetting Grouting Strings

Flat-faced Milling Bit

Reverse Circulation Diagram

Drill String Make-up (Grouting and Belling)

Downhole Stabiliser

Downhole Assembly

Bell Footings Insert

Acceptable Bell Profile

Wirth BHA Belling Tool

BHA Belling Tool Schematic

Concrete Batching Plant

Wirth PBA Drilling Rig

Riser Handling Unit

Riser Handling Unit

10 tonne Electromagnet

Stinger Joint - Reinforcement

Underwater Remote Observation Vehicle on Board The Shelf Supporter