Hebron GBS | Canada
Concrete gravity-based structure for environmental protection and durability in an extreme offshore oil and gas province with strict quality requirements.
The Hebron GBS combines North Sea–style gravity base technology with Arctic iceberg protection and large oil storage, creating one of the most robust offshore platforms ever built.
Extreme weather and large icebergs
- Location: Offshore Newfoundland and Labrador, Canada
- Water depth: 93 m
- Project period: 2011–2015
- Client / Operator: ExxonMobil
- Structure type: Concrete gravity-based structure (GBS)
Engineering and construction of a concrete gravity-based structure fixed by self-weight to the seabed. Designed to support a large topside and withstand extreme weather conditions and impacts from large icebergs in a harsh offshore environment.
- Designed for extreme ice and environmental loads.
- High structural robustness and long-term durability.
- Proven GBS solution for harsh offshore environments.
- Water depth: 93 m
- Concrete volume: 130,000 m³
- Reinforcement: 45,000 tonnes (350 kg/m³)
- Tension cables: 3,500 tonnes