Oil Platform – Ninian Oil Field, UK
At the time, Ninian Central Oil Platform was the world’s largest gravity structure (440,000 tons). The structure is 140 m in diameter at its base, with seven concentric walls of stepped heights intersected by radial walls. The central shaft is 14 m wide and surrounded by a breakwater wall 45 m in diameter and 1.6 m thick pierced with 1.5 m diameter holes. 1950 nos of our slipform jacks were used.
https://movingimage.nls.uk/film/5973
Location:
Client:
Howard Doris Ltd
Architect:
Scope of Supply:
Slipforming of the gravity structure
Total height:
237 m, slipformed up to level 160 m.
Time of execution:
1978
