Topsides The Topsides facilities accommodate all drilling, producing and utility equipment on the Hibernia platform, and provide living quarters for the steady-state crew of approximately 185 people. The Topsides facilities have a design capacity of approximately 230,000 barrels of crude oil production per day. In 2003, the C-NOPB gave Hibernia permission to increase its annual production rate to 220,00 KBD. The Topsides is composed of five super modules: M10 Process Gas and water are separated from the produced oil, and gas is then compressed for reinjection into the reservoir. Produced water is treated and discharged into the ocean. M20 Wellhead Drilling operations occur within the Wellhead Module, upon which two mobile drilling derricks are mounted. The platform is designed to drill two wells at a time. M30 Mud Drilling muds are pumped down the drill pipe and through holes in the drill bit to cool the bit, prevent the hole from collapsing and wash the cuttings away from the bottom of the hole. The muds are produced in the Mud Module. M40 Utilities The Utilities Module contains various equipment required for power generation, heating, ventilation and air conditioning, water distribution, and so on.
Gravity Base Structure The Topsides is supported by a massive concrete pedestal called the Gravity Base Structure (GBS) which was constructed in Bull Arm, Newfoundland. The GBS, which sits on the ocean floor, is 111 metres high and has storage capacity for 1.3 million barrels of crude oil in its 85 metre high caisson. The GBS is specially designed to withstand the impact of sea ice and icebergs to allow for year-round production. |